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DevicesEther ValvesLubricatorsSilencersStartersValvesY-StrainersBelts, Pulleys, & Vibration DampersBelts, Pulleys, & Vibration DampersEngine BeltsEngine PulleysEngine Vibration DampersOther Belts, Pulleys, & Vibrational DampersCooling SystemCooling SystemAftercoolers & ComponentsCooling FabricationsCooling ModulesFans & ComponentsHeat ExchangersOil CoolersOther Cooling System ComponentsRadiator & ComponentsTanks & ComponentsThermostatsWater Pumps & ComponentsEngine ComponentsEngine ComponentsAir Compressors & ComponentsCamshaft KitsCamshaftsCylinder Heads & ComponentsEngine BearingsEngine CoversEngine Mounts & SupportsEngine Rotating ComponentsPistons & Other Piston ComponentsEngine Filters & FluidsEngine Filters & FluidsEngine FiltersEngine FluidsEngine Repair & Service KitsEngine Overhaul KitsEngine Overhaul KitsOn-HighwayEngine TransmissionEngines & BlocksEngines & BlocksBare BlocksCylinder Block ComponentsCylinder BlocksEnginesLong BlocksOther Engine ArrangementsShort BlocksExhaust SystemExhaust SystemAftertreatment Systems & ComponentsExhaust AirLinesExhaust BellowsExhaust Manifolds & Manifold ComponentsExhaust PipesExhaust TubingExhaust ValvesIntake ComponentsMufflersOther Exhaust System ComponentsWastegateFEAD & Housing SystemsFEAD & Housing SystemsCrankshaft AdaptersFEAD & Fan Drive BracketsFan AdaptersFan Drive GroupsFront & Rear HousingsPump & Auxiliary AdaptersFuel SystemFuel SystemActuatorsCarburetors & GovernorsFuel InjectorsFuel Lines/High Pressure LinesFuel PressureFuel PumpsFuel RailsFuel System ValvesFuel TanksInjector NozzlesOther Fuel System ComponentsSeals for Fuel SystemsIgnition/Electrical SystemIgnition/Electrical SystemAlternatorsIgnitionsOil Mist DetectorsSpark PlugsStartersLubrication SystemLubrication SystemBreathersClosed Crankcase Ventilation (CCV)Disposal & OCV LinesOil FillsOil LinesOil PansOil Pump ComponentsOil PumpsOil Renewal System Valve AssemblyOther Lubrication ComponentsRegulatorsTurbo SystemTurbo SystemDiffusers & 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LipsBucket Corners & Corner GuardsBucket Corners & Corner GuardsBucket Corner GuardsBucket CornersBucket Edge ProtectionBucket Edge ProtectionBucket Cutting Edge SegmentsBucket Cutting EdgesBucket End BitsBucket Leveling EdgesHalf Arrow Cutting EdgesHalf Arrow End BitsHalf Arrow SegmentsModular ShroudsShroudsTop CoversCompactor Wheel Ground Engaging ToolsCompactor Wheel Ground Engaging ToolsCompactor Wheel TeethCompactor Wheel Tooth AssembliesCompactor Wheel Tooth BasesGET Wear ProtectionGET Wear ProtectionBase Edge End ProtectorsBolt SaversChoky ProductsGET Wear Plates & ProtectionHeel ShroudsRoll BarsWear BarsWear BlocksWear ButtonsWear LugsGrader Bit SystemsGrader Bit SystemsGET Adapters & ComponentsGrader Bit Angling PlatesGrader BitsGrader Cutting Edges & End BitsGrader Cutting Edges & End BitsGrader End Bit OverlaysGrader End BitsMotorgrader Cutting EdgesGround Engaging Tool Hardware & RetentionGround Engaging Tool Hardware & RetentionCapSure LocksCapSure SleevesGET BoltsGET HardwareGET Hardware KitsGround Engaging Tool Caps & PlugsGround Engaging Tool Mounting LugsGround Engaging Tool NutsGround Engaging Tool RetainersRock DeflectorsGround Engaging Tool Service Tools & GaugesGround Engaging Tool Service Tools & GaugesGround Engaging Tool GaugesGround Engaging Tool Service ToolsOther Ground Engaging ToolsOther Ground Engaging ToolsMulcher TeethWire RopePaving Ground Engaging ToolsPaving Ground Engaging ToolsPaving Diamond Cutter BitsPaving Screed PlatesRipper & Scarifier Ground Engaging ToolsRipper & Scarifier Ground Engaging ToolsDozer Ripper ProtectionGET Shanks & Shank ComponentsRipper Shank Repair NosesRipper TipsScarifier ShanksScarifier TeethRock Drill Ground Engaging ToolsRock Drill Ground Engaging ToolsDown-The-Hole Hammer AdaptersDown-The-Hole Hammer AssembliesDown-The-Hole Hammer BitsTricone Drill BitsTricone Drill NozzlesScraper Ground Engaging ToolsScraper Ground Engaging ToolsDozer Cutting Edge ArmsScraper Elevator & Ejector PartsScraper Router BitsSide Cutters & Sidebar ProtectionSide Cutters & Sidebar ProtectionBucket Sidebar ProtectionSide CuttersSidebar Protector Shear BlocksWing ShroudsWear PlatesWear PlatesBack Drag BarsBase Edge Wear PlatesBucket Rear Wear PlatesHeel PlatesLiner Wear PlatesSidebar Wear PlatesSki PlatesSole PlatesHardware, Seals, & ConsumablesHardware, Seals, & ConsumablesBars, Plates, & Angle BracketsBars, Plates, & Angle BracketsAngle BracketsFlat Common Shape PlatesIrregular PlatesOther Bar, Plates, & Angle BracketsSquare, Hex, & Round BarsBearings & BushingsBearings & BushingsCapsLeg PocketsOther Bearings & BushingsRetainersRing HalfRolling ElementsSleevesSpherical PlainsTrunnionsBelts & PulleysBelts & PulleysBeltsPulleysChannels & TubesChannels & TubesStandard ChannelsStructural TubesU-ChannelsFoam, Insulation, & LinersFoam, Insulation, & LinersCab InsulationHeat ShieldsInsulation Groups & AssembliesIrregularRoundSquare RectangleTrianglesTubular Exhaust SleevesHandles, Latches, & Hand LeversHandles, Latches, & Hand LeversCab Door HandlesCab Grab HandlesCab Hand LeversCab LatchesHardwareHardwareBumpersClampsFastenersGrommetsHingesIsolation MountsKeysLifting ComponentsLink Brackets & ComponentsOther HardwarePinsRetaining/Snap RingsRod Ends & Control RodsSpherical BallsSpringsWashers & SpacersWire Ropes, Cables, & ChainsHardware KitsHoses & TubesInformation, Messages, & MarkingsInformation, Messages, & MarkingsFilmsOther Identification ComponentsPlatesTagsLinkage Pins & Sleeve BearingsLinkage Pins & Sleeve BearingsFlag Pin Assemblies & ComponentsHeaded PinsKeeper Bar Pins & ComponentsLinkage PinsMultiple OD PinsOther Linkage Pins & Sleeve BearingsOther Pins & Pin AssemblyPlain PinsRetaining Ring PinsSleeve BearingsTapered Fit PinsO-Ring KitsSeals, Gaskets, & O-RingsSeals, Gaskets, & O-RingsBackup RingsBulk SealsD-RingsGasketsKitsLoose Lip PistonsMetal RingsO-RingsOther SealsPress-In-PlaceQuad RingsRectangular Seals & RingsRotatingSealing WashersSeals for Fuel SystemsWeatherstripsWindow & Panel SealsHoses & TubesHoses & TubesAdapters, Couplings, & FittingsAdapters, Couplings, & FittingsAdapters & ComponentsCouplingsCustom AdaptersFittingsCaps & PlugsCaps & PlugsCapsOther Caps & PlugsPlugsStoppersHoses, Hose Assemblies, & Hose ComponentsHoses, Hose Assemblies, & Hose ComponentsBulk HosesCoolant HosesEngine & Brake HosesFixed Length HosesFuel HosesHeating & Air Conditioning HosesHigh Pressure HosesHose AssembliesHose GuardsMedium Pressure HosesMedium-to-High Pressure HosesPilot & Thermoplastic HosesSuction Hoses & Return HosesHybrid Hose & Tube AssembliesTubes, Tube Assemblies, & Tube ComponentsTubes, Tube Assemblies, & Tube ComponentsPipesTube AssembliesTube ComponentsTubesHydraulicsHydraulicsHydraulic Accumulators & ComponentsHydraulic Cylinder Seal KitsHydraulic Cylinders & ComponentsHydraulic Cylinders & ComponentsHydraulic Cylinder GroupsHydraulic Cylinder Rod & Rod AssembliesHydraulic Cylinder Seal KitsHydraulic Cylinder SealsHydraulic Cylinder Tube & Barrel AssembliesOther Cylinder ComponentsHydraulic Hammer ComponentsHydraulic Pumps, Motors, & ComponentsHydraulic Pumps, Motors, & ComponentsHydraulic MotorsHydraulic PumpsOther Hydraulic Pump & Motor ComponentsOther Hydraulic Pumps & MotorsHydraulic Repair & Service KitsHydraulic Repair & Service KitsGeneral Hydraulics Repair & Service KitsHydraulic Cylinder Seal KitsHydraulic Tanks, Reservoirs, & Other Tank ComponentsHydraulic Tanks, Reservoirs, & Other Tank ComponentsHydraulic Tank ComponentsHydraulic Tanks & ReservoirsHydraulic Valve Groups & ComponentsHydraulic Valve Groups & ComponentsHydraulic Brake ValvesHydraulic Cartridge ValvesHydraulic In-Line ValvesHydraulic Joystick ValvesHydraulic Main Control ValvesHydraulic Valve ComponentsManually Operated ValvesOther Hydraulic ValvesOther Hydraulic ComponentsStructures & Other Systems ComponentsStructures & Other Systems ComponentsCustom StructuresFire Suppression System & ComponentsFire Suppression System & ComponentsActuatorsControllers & ModulesExtinguishersNozzlesGrease Lubrication SystemsGrease Lubrication SystemsGrease ZerksLube Valves & InjectorsLubrication PumpsGuard Assembly StructuresHeavy Frame & Body FabricationsHeavy Frame & Body FabricationsCompactor WheelsCounterweight & BallastsExternal ROPSGrab, Lift, & Push StructuresMachine FrameOther Heavy FabricationsPayload Carrying StructureTrack FramesTruck Bodies & LinersLight Frame & Body FabricationsLight Frame & Body FabricationsEnclosures & DoorsGrates, Grills, & ScreensHandrailsLaddersLevers & LinksOther Light FabricationsStairwaysStepsTrack FendersTread PlatesWalkways & PlatformsWheel FendersOther Covers & SupportsOther Covers & SupportsCustom SupportsCustom Tubular SupportsMetallic CoversNon-Metallic Covers & SupportsScraper Elevator & Ejector SystemsTanks & ComponentsTanks & ComponentsAir TanksDEF TanksFuel TanksGaugesOther Tank ComponentsPressure CapsWashdown TanksWasher Fluid TanksUndercarriageUndercarriageBogiesBogiesBogiesPin Assembly and CartridgesGuardsRolling ComponentsRolling ComponentsBottom RollersCarrier Roller GroupsCarrier Roller Rim AssembliesCast and Forged IdlersCollarsFabricated Idler ComponentsFront Idler GroupsIdler AssembliesIdler GroupsMiscellaneous Rolling ComponentsMounting Caps, Blocks, and Bearing MountsRimsShaftsSlidersSprockets and SegmentsTrack Roller GroupsTrack Roller Rim AssembliesRubber Track Undercarriage ComponentsRubber Track Undercarriage ComponentsIdlersMiscellaneous ComponentsMulti Terrain LoaderRollersSprocketsRubber TracksSealsSealsBackup Rings and Rectangular SealsDuo Cone GroupsO-RingsRingsToric RingsStructuresStructuresFrame AssembliesPlates and BracketsTrack AdjustmentTrack AdjustmentEqualizer PartsRecoil Groups and PartsTrack Tensioner and Adjuster ComponentsTrack ComponentsTrack ComponentsBearing SleevesCartridge AssemblyInsertsLink AssembliesMiscellaneous Track ComponentsTrack Group SegmentsTrack GroupsTrack 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PartsAttachmentsAttachmentsAdaptersAugersBackhoesBale GrabsBale SpearsBladesBroomsBrushcuttersBuckets - BackhoeBuckets - Compact Wheel LoaderBuckets - Medium Wheel LoaderBuckets - Mini Hydraulic Excavator (0 - 10T)Buckets - Skid Steer LoaderBuckets - Small Wheel LoaderCold PlanersCompactorsCouplersFlail MowersForksGrappleHammersHammersHammer BracketsHammer LinesHammer ToolsHammersMaterial Handling ArmsMulchersRakesRippersSawsSmart Grader BladesSnow BlowersSnow PlowsSnow PushesCabsCabsAlarms & HornsAlarms & HornsAlarmsHornsCab AssembliesCab CanopiesCab Displays & GaugesCab Displays & GaugesCab DisplaysCab Gauge ClustersGaugesCab DoorsCab DoorsCab Door AssembliesCab Door HandlesCab Grab HandlesCab Hand LeversCab LatchesCab Entertainment SystemsCab Entertainment SystemsAntennaPower SocketsRadio AccessoriesRadiosSpeakers & GrillsUSB PortsCab HVAC SystemsCab HVAC SystemsCab Accumulators, Receivers, & DryersCab Air Conditioning AssembliesCab Air Conditioning CompressorsCab Air FiltersCab BlowersCab DuctingCab EvaporatorsCab ThermostatsLouversOther Cab HVAC ComponentsCab InteriorCab InteriorCab Dash & TrimsCab Emergency Exit ComponentsCab FloormatsCab InsulationCab Seats & ComponentsCab StorageCab SecurityCab VisibilityCab VisibilityMirrorsOther Visibility ComponentsOther Window & Glass ComponentsShadesVision SystemsVisorsWasher Fluid TanksWindows & GlassWindshield Wipers, Washers, & ComponentsCab Windows & Panel Weatherstrips & SealsCab Windows & Panel Weatherstrips & SealsWeatherstripsWindow & Panel SealsElectric Cab Operator ControlsElectric Cab Operator ControlsCab Buttons & KnobsCab SwitchesCamerasHVACJoystick ComponentsJoysticksKeypadsOther Cab ControlsRotary & Jog Dial ModulesStalksWiper SwitchesMechanical Cab Operator ControlsMechanical Cab Operator ControlsFoot PedalsMechanical Control LeversOther Operator Control ComponentsSteering WheelsOther Cab ComponentsTelematicsDrivetrainDrivetrainAxles & ComponentsAxles & ComponentsAxle ComponentsAxlesBrakes & ComponentsBrakes & ComponentsBrake DrumsBrake HubsBrake LiningsBrake Master CylindersBrake Reservoir TanksBrake Shoe AssembliesBrakesCamshaftsHydraulic Brake ValvesOther Brake ComponentsParking Brake DiscsClutches & ComponentsClutches & ComponentsClutch HousingClutch PlatesClutch-Brake HubClutchesDifferentialsDifferentialsDifferential Bearing KitsDifferential BearingsDifferential CarriersDifferential Case & Housing AssembliesDifferential CasesDifferential Friction DiscsDifferential GearsDifferential GroupsDifferential PlatesDifferential SpidersOther Differential ComponentsDrive Chains & SprocketsDrive Chains & SprocketsDrive ChainsDrive SprocketsDriveshafts & JointsDriveshafts & JointsDriveshaft PlatesDriveshaftsJointsOther Driveshaft & Joint ComponentsDrivetrain Filters & FluidsDrivetrain Filters & FluidsDrivetrain FiltersDrivetrain FluidsDrivetrain Repair & Service KitsDrivetrain Repair & Service KitsDrivetrain & Steering KitsDrivetrain Bearing KitsDrivetrain Gasket KitsFinal DriveFinal DriveFinal Drive Bearing KitsFinal Drive BearingsFinal Drive Damper PlatesFinal Drive Duo Cone SealsFinal Drive GearsFinal Drive PlatesFinal DrivesFriction DiscsOther Final Drive ComponentsGearsGearsOther GearsPlanet GearsPump GearsRing GearsSun GearsOther Drivetrain ComponentsOther Drivetrain ComponentsAdapters & CouplingsDrive GroupsDrivetrain Friction DiscsDrivetrain Pump ValvesDrivetrain Separator PlatesDrivetrain Shafts & Shaft AssembliesDrivetrain Structural ComponentsOther Drivetrain ComponentsSteeringSteeringOther Steering ComponentsSteering Friction DiscsSteering PlatesTires & RimsTires & RimsMounting DiscsMudflapsRim ComponentsRimsTire & Tire ComponentsTorque Converters & ComponentsTorque Converters & ComponentsTorque Converter BearingsTorque Converter ComponentsTorque ConvertersTransmissions & ComponentsTransmissions & ComponentsOther Transmission ComponentsTransmission ArrangementsTransmission Bearing KitsTransmission BearingsTransmission Cases & AssembliesTransmission Friction DiscsTransmission Gasket KitsTransmission GearsTransmission PlatesTransmission RotorWheelsYokes & Yoke AssembliesYokes & Yoke AssembliesYoke AssembliesYokesElectrical & ElectronicsElectrical & ElectronicsAlarms & HornsAlarms & HornsAlarmsHornsBasic ComponentsBasic ComponentsAlternatorsBus BarsCapacitorsCircuit Breakers & FusesCoilsDiodesGeneratorsHeat SinksMotorsRectifiersRegulatorsRelayResistorsSolenoidsStartersTransducersBatteriesBatteriesBattery ComponentsGeneral DutyHeavy DutyOther BatteriesUninterruptible Power SupplyCab Displays & GaugesCab Displays & GaugesCab DisplaysCab Gauge ClustersCab GaugesCab Entertainment SystemsCab Entertainment SystemsAntennaPower SocketRadio AccessoriesRadiosSpeaker & GrillUSB PortCondition MonitoringElectric BoxesElectrical & Electronics Repair & Service KitsElectrical Operator ControlsElectrical Operator ControlsCab Buttons & KnobsCab SwitchesCamerasHVACJoystick ComponentsJoysticksKeypadsOther Cab ControlsRotary & Jog Dial ModulesStalksTransmission Hoist LeversWiper SwitchesHeatersLights & Light AccessoriesLights & Light AccessoriesLight AccessoriesLightsOther Electrical & Electronics ComponentsPowerPowerAlternatorsBatteriesGeneratorsMemory Cards & HDsMotorsOther Power Converter ComponentsPower ControlsPower InvertersSoftwareStartersTransformersRadios & Radio AccessoriesRadios & Radio AccessoriesRadio AccessoriesRadiosSensors & SwitchesSensors & SwitchesAdvanced SensorsEmission SensorsLidarLiquid Level SensorsOther Sensors & SwitchesPosition SensorsPressure SensorsPressure SwitchesRadarSensor & Switch ComponentsSpeed & Timing SensorsTelematicsTemperature SensorsTemperature SwitchesTelematicsTerminal BlocksVision SystemsWiring Harnesses & CablesWiring Harnesses & CablesBulk MaterialsCable AssembliesConduitsConnectorsHarness AssembliesOther Connectors & TerminalsOther Wiring Harnesses & CablesTerminalsWiring GroupsEngineEngineAir & Hydraulic Starting SystemsAir & Hydraulic Starting SystemsBarring DevicesEther ValvesLubricatorsSilencersStartersValvesY-StrainersBelts, Pulleys, & Vibration DampersBelts, Pulleys, & Vibration DampersEngine BeltsEngine PulleysEngine Vibration DampersOther Belts, Pulleys, & Vibrational DampersCooling SystemCooling SystemAftercoolers & ComponentsCooling FabricationsCooling ModulesFans & ComponentsHeat ExchangersOil CoolersOther Cooling System ComponentsRadiator & ComponentsTanks & ComponentsThermostatsWater Pumps & ComponentsEngine ComponentsEngine ComponentsAir Compressors & ComponentsCamshaft KitsCamshaftsCylinder Heads & ComponentsEngine BearingsEngine CoversEngine Mounts & SupportsEngine Rotating ComponentsPistons & Other Piston ComponentsEngine Filters & FluidsEngine Filters & FluidsEngine FiltersEngine FluidsEngine Repair & Service KitsEngine Overhaul KitsEngine Overhaul KitsOn-HighwayEngine TransmissionEngines & BlocksEngines & BlocksBare BlocksCylinder Block ComponentsCylinder BlocksEnginesLong BlocksOther Engine ArrangementsShort BlocksExhaust SystemExhaust SystemAftertreatment Systems & ComponentsExhaust AirLinesExhaust BellowsExhaust Manifolds & Manifold ComponentsExhaust PipesExhaust TubingExhaust ValvesIntake ComponentsMufflersOther Exhaust System ComponentsWastegateFEAD & Housing SystemsFEAD & Housing SystemsCrankshaft AdaptersFEAD & Fan Drive BracketsFan AdaptersFan Drive GroupsFront & Rear HousingsPump & Auxiliary AdaptersFuel SystemFuel SystemActuatorsCarburetors & GovernorsFuel InjectorsFuel Lines/High Pressure LinesFuel PressureFuel PumpsFuel RailsFuel System ValvesFuel TanksInjector NozzlesOther Fuel System ComponentsSeals for Fuel SystemsIgnition/Electrical SystemIgnition/Electrical SystemAlternatorsIgnitionsOil Mist DetectorsSpark PlugsStartersLubrication SystemLubrication SystemBreathersClosed Crankcase Ventilation (CCV)Disposal & OCV LinesOil FillsOil LinesOil PansOil Pump ComponentsOil PumpsOil Renewal System Valve AssemblyOther Lubrication ComponentsRegulatorsTurbo SystemTurbo SystemDiffusers & NozzlesHousings & CoversOther Turbo ComponentsTurbo CartridgesTurbochargers & Turbocharger GroupsValve TrainValve TrainActuatorsBridgeCamshaft KitsCamshaftsEngine BrakesLifter ShaftOther Valve ComponentsOther Valve Mechanism ComponentsPushrodsRocker ArmsRotocoilsValvesFilters & FluidsFilters & FluidsFiltersFiltersAftertreatment/DEFAir CleanersAir FiltersBreathersCoolant ConditionersEngine Oil Filters & ComponentsFuel Filters & Fuel Water SeparatorsHydraulic & Transmission FiltersLube System FiltersOther Filters & Filter ComponentsScreensFluidsFluidsAftertreatment/Diesel Exhaust Fluid (DEF)CoolantsGreasesOilsGround Engaging Tools (GET)Ground Engaging Tools (GET)Blade Cutting Edges & End BitsBlade Cutting Edges & End BitsDozer Cutting EdgesDozer End BitsBucket Adapters & ComponentsBucket Adapters & ComponentsAdapter CoversAdaptersBox TeethBucket TipsLip & Adapter Repair NosesTooth BarsTooth CouplersBucket Base Edges & LipsBucket Base Edges & LipsBase Edge AssembliesBase EdgesCast 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BackHomeHoses & TubesCaps & PlugsOther Caps & Plugs3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
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Hoses & TubesCaps & PlugsOther Caps & Plugs
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
Product Images
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug
3J-5390: 3/8-18 NPTF Thread Hex-Drive Plug

Pipe Thread Plug

Brand: Cat

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

Need More Help? Contact Us

Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

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Find a DealerEmail
Parts diagram for 3J-5390
View Detailed Parts Diagrams
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Description for part number 3J-5390

Description:
Cat® Threaded caps and plugs are held to the highest standards of quality and reliability. These caps and plugs are manufactured to exacting tolerances to ensure leak free connections. Each Cat Threaded Cap and Plug is designed to meet or exceed industry standards for operating pressure, assembly torque capability, and corrosion protection to ensure a long life and proper machine functionality.

Attributes:
• Fluid transfer system components
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• Available with a variety of drive types for convenience (Internal Hex, External Hex, Square, etc.)
• The image provided is for reference only. Cap or plug construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Applications:
Threaded caps and plugs are designed to stop fluid flow and hold pressure when properly assembled with other fluid system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

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Warning:This product can expose you to chemicals including Cobalt metal powder, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Cat® Hose Assembly Products Warning
Improper selections of hose and coupling combinations will void warranties and may result in serious personal injury or death, property damage, or component and machine system failure.
View More
Specifications for part number 3J-5390

Units of Measure

USMetric

Material Description: Plated Steel

Material: Alloy Steel,Alloy Zinc,Carbon Steel

Thread Size (in - TPI) (in): 3/8 - 18

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Compatible Models for part number 3J-5390

GENERATOR

SR4B SR4

TRUCK ENGINE

3176 3408B 1673C 3406E 3406C 3406B 3306B 1673 1693 3408 3406 3306 1140 1150 3208 1145 1160 3116

INTEGRATED TOOLCARRIER

IT28B IT18B

WHEEL SKIDDER

525 518 528

ROTARY DRILL

MD6310 MD6200

EXCAVATOR

311D LRR 349D L 336D 324D 312D 320D3 GC 315D L 320D3 314D CR 322C 345C 325D L 320D LRR 336D L 350-A L 349D 324D L 350 L 325C 325D 313D 312D L 314D LCR M325D MH 345C L 320D RR 323D L 320D 330C 245B M325D L MH 320D L 319D LN 320D GC 319D L 330C L 320D FM 330D L 225 330D MH 329D L 235 330D LN 318C 215 329D 330C LN 325D MH 321D LCR 375-A 245 324D LN 345C MH

WHEEL TRACTOR

615C II 631E 631C 641B 613C II 613 627 621 641 651 657 623G 633C 657B 621E 657G 627B

HYDRAULIC CONTROL

48 163 143 183B 153 141 140

VEHICULAR ENGINE

3516 3512

TRACK LOADER

973 983 931 943 941 953 951C 951B 941B 977K 955K 955L

SOIL COMPACTOR

815 825G 825C 825B

BACKHOE LOADER

446B 446

WHEEL DOZER

844K 834 824B 834B 824G 824C 814 824G II

LANDFILL COMPACTOR

836 816 826C 826G

WHEEL LOADER

972G 960F 950F G926 988B 988F G916 988K 966D 966C 966F 966E 966G 930R 930T 936E 926E 980 988 992 916 920 926 930 936 950 966F II 990K 980B 992D 992B 980C 980G 970F 950F II

SOIL STABILIZER

SS-250

ARTICULATED TRUCK

D30C D30D D35C D250B D25D D25C D350C D300E II D300B 725 730

WHEELED EXCAVATOR

M325C MH W345C MH

ENGINE - INDUSTRIAL

3406B 3406C

PNEUMATIC COMPACTOR

PS-200B PS-360B PF-290B PS-150B

INDUSTRIAL ENGINE

C18 3304 3306 3412 3406 3512 3516 3508 D399 D379 3406C D342 D343 D348 D346 D320A D333C D353C D353E D353D D342C D330C D379B

QUARRY TRUCK

771D

WHEEL SCRAPER

641B 630B 666B 621E 633B 621B 657B 623F 623B 623E 637E 637G 637D 627G 639D 627B 615 621 627 633 666 641 657

TRACTOR

784B 776 776D 768C

GAS ENGINE

G398 G399 G379A G342C G3306 G379 G3512E G3612 G3616 G3516J G3516C G3516B G3508

BULLDOZER

824S 834U 834S 7SU 7S LGP 8S 4S 10C 5A 5S 6A 6S 10S 7S 10U 8A 3S 3P 4A

PUMPER

SCT673 CPT372 SPS342 SPT342

UNDERGROUND ART TRUCK

AE40 AE40 II AD55 AD30 AD45 AD40

LOAD HAUL DUMP

R1600G R1700G R1700 II R2900G R1300 R1600 R2900

OFF HIGHWAY TRUCK

796 AC 794 AC 777

MOTOR GRADER

120H 120G 120B 16 140B 140G 130G 140 14E 24H 120 160G 12F

WINCH

528 55

BACKHOE

D3 931

TRACK-TYPE TRACTOR

D10 D3B D4H D4D D4E D5B D5H D6C D6D D6E D6H D5 D4E SR D11T D7F D7G D8K D8L D8H D9G D6G2 XL

ASPHALT PAVER

AP-800 AP-800B AP-1050

MARINE AUXILIARY

3608

MARINE ENGINE

3126 3208 3304 3306 3412 3408 3406 D353E 3516 3512 D353C D353D 3508 3616 C18 3618 D379A D379B D399 D330A D330B D342C D330C 3408B 3406B D346 D348 D398A D398B D343 C280-16 C280-12 D333B D333C 3304B

PIPELAYER

561B 561D 561C 572F 571F 589

VIBRATORY COMPACTOR

CB-534B CB-535B CB-614 CB-434B CB-434

RIPPER SCARIFIER

16G

GENERATOR SET

G3520 G3516H G3520C G3520E

RECLAIMER MIXER

RM-250C

MARINE TRANSMISSION

7271

LOCOMOTIVE ENGINE

3512C 3508C

EJECTOR TRUCK

730

COLD PLANER

PR-1000C PR-450 PR-1000 PR-450C PM-565

ROAD RECLAIMER

RR-250

ENGINE - MACHINE

3306 3208

CHALLENGER

65 65B

GEN SET ENGINE

3406C 3406B 3408B 3408C 3304B G3520 3306 3304 3412 3208 3412C 3508 C280-16 3408 3512 3516

RIPPER

977 951 955 6 5 4 8D 10

MARINE GEAR

3192 7251

TRUCK

793F XQ 794 AC 793F OEM 775D 789C 777D 769B 769D 789 797 69D 773D 797F 785C 797B 785B 769 773

TRACK-TYPE LOADER

977K

View More
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 3J-5390
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 3J-5390

Description:
Cat® Threaded caps and plugs are held to the highest standards of quality and reliability. These caps and plugs are manufactured to exacting tolerances to ensure leak free connections. Each Cat Threaded Cap and Plug is designed to meet or exceed industry standards for operating pressure, assembly torque capability, and corrosion protection to ensure a long life and proper machine functionality.

Attributes:
• Fluid transfer system components
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• Available with a variety of drive types for convenience (Internal Hex, External Hex, Square, etc.)
• The image provided is for reference only. Cap or plug construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Applications:
Threaded caps and plugs are designed to stop fluid flow and hold pressure when properly assembled with other fluid system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

View More
Warning:This product can expose you to chemicals including Cobalt metal powder, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Cat® Hose Assembly Products Warning
Improper selections of hose and coupling combinations will void warranties and may result in serious personal injury or death, property damage, or component and machine system failure.
View More
Specifications for part number 3J-5390

Units of Measure

USMetric

Material Description: Plated Steel

Material: Alloy Steel,Alloy Zinc,Carbon Steel

Thread Size (in - TPI) (in): 3/8 - 18

View More
Compatible Models for part number 3J-5390

GENERATOR

SR4B SR4

TRUCK ENGINE

3176 3408B 1673C 3406E 3406C 3406B 3306B 1673 1693 3408 3406 3306 1140 1150 3208 1145 1160 3116

INTEGRATED TOOLCARRIER

IT28B IT18B

WHEEL SKIDDER

525 518 528

ROTARY DRILL

MD6310 MD6200

EXCAVATOR

311D LRR 349D L 336D 324D 312D 320D3 GC 315D L 320D3 314D CR 322C 345C 325D L 320D LRR 336D L 350-A L 349D 324D L 350 L 325C 325D 313D 312D L 314D LCR M325D MH 345C L 320D RR 323D L 320D 330C 245B M325D L MH 320D L 319D LN 320D GC 319D L 330C L 320D FM 330D L 225 330D MH 329D L 235 330D LN 318C 215 329D 330C LN 325D MH 321D LCR 375-A 245 324D LN 345C MH

WHEEL TRACTOR

615C II 631E 631C 641B 613C II 613 627 621 641 651 657 623G 633C 657B 621E 657G 627B

HYDRAULIC CONTROL

48 163 143 183B 153 141 140

VEHICULAR ENGINE

3516 3512

TRACK LOADER

973 983 931 943 941 953 951C 951B 941B 977K 955K 955L

SOIL COMPACTOR

815 825G 825C 825B

BACKHOE LOADER

446B 446

WHEEL DOZER

844K 834 824B 834B 824G 824C 814 824G II

LANDFILL COMPACTOR

836 816 826C 826G

WHEEL LOADER

972G 960F 950F G926 988B 988F G916 988K 966D 966C 966F 966E 966G 930R 930T 936E 926E 980 988 992 916 920 926 930 936 950 966F II 990K 980B 992D 992B 980C 980G 970F 950F II

SOIL STABILIZER

SS-250

ARTICULATED TRUCK

D30C D30D D35C D250B D25D D25C D350C D300E II D300B 725 730

WHEELED EXCAVATOR

M325C MH W345C MH

ENGINE - INDUSTRIAL

3406B 3406C

PNEUMATIC COMPACTOR

PS-200B PS-360B PF-290B PS-150B

INDUSTRIAL ENGINE

C18 3304 3306 3412 3406 3512 3516 3508 D399 D379 3406C D342 D343 D348 D346 D320A D333C D353C D353E D353D D342C D330C D379B

QUARRY TRUCK

771D

WHEEL SCRAPER

641B 630B 666B 621E 633B 621B 657B 623F 623B 623E 637E 637G 637D 627G 639D 627B 615 621 627 633 666 641 657

TRACTOR

784B 776 776D 768C

GAS ENGINE

G398 G399 G379A G342C G3306 G379 G3512E G3612 G3616 G3516J G3516C G3516B G3508

BULLDOZER

824S 834U 834S 7SU 7S LGP 8S 4S 10C 5A 5S 6A 6S 10S 7S 10U 8A 3S 3P 4A

PUMPER

SCT673 CPT372 SPS342 SPT342

UNDERGROUND ART TRUCK

AE40 AE40 II AD55 AD30 AD45 AD40

LOAD HAUL DUMP

R1600G R1700G R1700 II R2900G R1300 R1600 R2900

OFF HIGHWAY TRUCK

796 AC 794 AC 777

MOTOR GRADER

120H 120G 120B 16 140B 140G 130G 140 14E 24H 120 160G 12F

WINCH

528 55

BACKHOE

D3 931

TRACK-TYPE TRACTOR

D10 D3B D4H D4D D4E D5B D5H D6C D6D D6E D6H D5 D4E SR D11T D7F D7G D8K D8L D8H D9G D6G2 XL

ASPHALT PAVER

AP-800 AP-800B AP-1050

MARINE AUXILIARY

3608

MARINE ENGINE

3126 3208 3304 3306 3412 3408 3406 D353E 3516 3512 D353C D353D 3508 3616 C18 3618 D379A D379B D399 D330A D330B D342C D330C 3408B 3406B D346 D348 D398A D398B D343 C280-16 C280-12 D333B D333C 3304B

PIPELAYER

561B 561D 561C 572F 571F 589

VIBRATORY COMPACTOR

CB-534B CB-535B CB-614 CB-434B CB-434

RIPPER SCARIFIER

16G

GENERATOR SET

G3520 G3516H G3520C G3520E

RECLAIMER MIXER

RM-250C

MARINE TRANSMISSION

7271

LOCOMOTIVE ENGINE

3512C 3508C

EJECTOR TRUCK

730

COLD PLANER

PR-1000C PR-450 PR-1000 PR-450C PM-565

ROAD RECLAIMER

RR-250

ENGINE - MACHINE

3306 3208

CHALLENGER

65 65B

GEN SET ENGINE

3406C 3406B 3408B 3408C 3304B G3520 3306 3304 3412 3208 3412C 3508 C280-16 3408 3512 3516

RIPPER

977 951 955 6 5 4 8D 10

MARINE GEAR

3192 7251

TRUCK

793F XQ 794 AC 793F OEM 775D 789C 777D 769B 769D 789 797 69D 773D 797F 785C 797B 785B 769 773

TRACK-TYPE LOADER

977K

View More
KeyKey
Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

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