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HomeHydraulicsOther Hydraulic Components1F-3278: Adapter Assembly
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HydraulicsOther Hydraulic Components1F-3278: Adapter Assembly
1F-3278: Adapter Assembly

Fluid Carrying Straight Adapter with Nut (NPTF)

Brand: Cat

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1F-3278: Adapter Assembly
1F-3278: Adapter Assembly
1F-3278: Adapter Assembly
1F-3278: Adapter Assembly
1F-3278: Adapter Assembly

Fluid Carrying Straight Adapter with Nut (NPTF)

Brand: Cat

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Description
Description

Description:
Cat® Fluid Carrying Adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each Cat Fluid Carrying Adapter 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 carrying component
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• The image provided is for reference only. Adapter construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. 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. Cat® hose assembly products are designed and tested as a system to achieve a reliable connection, thus maximizing hydraulic system safety and dependability. It is also recommended that appropriate and properly maintained Caterpillar tooling is used to ensure hoses are crimped to specifications. Use of Caterpillar hose with other manufacturer’s couplings or the use of Caterpillar couplings with other manufacturer’s hose may result in the production of unreliable, unsafe or under-performing hose assemblies. It is not recommended or authorized by Caterpillar. For additional information see SAE J1273 section 6.3 and ISO 17165-2 section 6.3.

Description:
Cat® Fluid Carrying Adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each Cat Fluid Carrying Adapter 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 carrying component
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• The image provided is for reference only. Adapter construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. 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
Specifications
Units of MeasureUSMetric
Type: Straight Union
Connector Type: NPTF
Material Description: Steel; Brass
Length (mm): Not specified
Thread: 1/8-27 NPTF
Hex Size (mm): 11; 14
Length (in): Not specified
Hex Size (in): 7/16; 9/16
Units of MeasureUSMetric
Type: Straight Union
Connector Type: NPTF
Material Description: Steel; Brass
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Compatible Models
Compatible Models
Hydraulic Control
183B
Soil Compactor
825B
Wheel Dozer
834824B824
Landfill Compactor
826B
Wheel Loader
988
Track-Type Tractor
D8KD8HD9GD9H
Gen Set Engine
D379BD399D398B
Ripper
8D
Marine Engine
D353ED353CD353DD379AD379BD399D398AD398BD342CD342
Pipelayer
583K583H594H594
Industrial Engine
D398D399D353CD353ED353DD342D342CD398BD379D379B
Wheel Scraper
666666B657
Gas Engine
G353DG398G399G379AG342CG379
Bulldozer
8S
View More
Hydraulic Control
183B
Warranty Information
Return Policy
Parts diagram for 1F-3278
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 1F-3278
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 1F-3278

Description:
Cat® Fluid Carrying Adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each Cat Fluid Carrying Adapter 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 carrying component
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• The image provided is for reference only. Adapter construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other 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 Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. 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 1F-3278

Units of Measure

USMetric
Type: Straight Union
Connector Type: NPTF
Material Description: Steel; Brass
Length (mm): Not specified
Thread: 1/8-27 NPTF
Hex Size (mm): 11; 14
Length (in): Not specified
Hex Size (in): 7/16; 9/16
View More
Compatible Models for part number 1F-3278

HYDRAULIC CONTROL

183B

SOIL COMPACTOR

825B

WHEEL DOZER

834 824B 824

LANDFILL COMPACTOR

826B

WHEEL LOADER

988

TRACK-TYPE TRACTOR

D8K D8H D9G D9H

GEN SET ENGINE

D379B D399 D398B

RIPPER

8D

MARINE ENGINE

D353E D353C D353D D379A D379B D399 D398A D398B D342C D342

PIPELAYER

583K 583H 594H 594

INDUSTRIAL ENGINE

D398 D399 D353C D353E D353D D342 D342C D398B D379 D379B

WHEEL SCRAPER

666 666B 657

GAS ENGINE

G353D G398 G399 G379A G342C G379

BULLDOZER

8S

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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