Description: Backup Rings prevent seal extrusion in high pressure applications, and may be used to protect the life of overall sealing system from pressure surges.
Attributes: Cat® Backup Rings are designed in conjunction with the elastomeric seal and mating components, and contribute significantly to the life and performance of the sealing system in high pressure applications.
Backup ring dimensions are consistently held to tight tolerances to ensure they properly bridge the seal groove and the mating surface. Materials are selected for their pressure and abrasion resistance.
Backup rings may be solid or split. Split rings are used for ease of assembly.
Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Applications: Backup rings are used in high pressure static and dynamic sealing applications, such as hydraulic pumps, valves and engine systems.
Description: Backup Rings prevent seal extrusion in high pressure applications, and may be used to protect the life of overall sealing system from pressure surges.
Attributes: Cat® Backup Rings are designed in conjunction with the elastomeric seal and mating components, and contribute significantly to the life and performance of the sealing system in high pressure applications.
Backup ring dimensions are consistently held to tight tolerances to ensure they properly bridge the seal groove and the mating surface. Materials are selected for their pressure and abrasion resistance.
Backup rings may be solid or split. Split rings are used for ease of assembly.
Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Applications: Backup rings are used in high pressure static and dynamic sealing applications, such as hydraulic pumps, valves and engine systems.
Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
Cross Section Width (mm): 2.5
Cross Section Height (mm): 1.8
Material: Rubber,Fluoroelastomer (FKM) Rubber
Inside Diameter (mm): 35
Seal/O-Ring Type: Solid
Inside Diameter (in): 1.37
Cross Section Height (in): 0.07
Radial Thickness (mm): 2
Units of MeasureUSMetric
Axial Thickness (mm): 3
Cross Section Width (in): 0.1
Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
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Compatible Models
Compatible Models
Pumper
SPP101
Truck Engine
3126E3126B3126
Integrated Toolcarrier
IT62G IIIT38G II
Combine Harvester
460
Wheel Harvester
570B580B
Engine
3126E
Track Loader
953C963C
Petroleum Engine
3126B
Motor Grader
120H135H
Wheel Loader
938G II950G II962G II
Track-Type Tractor
D5ND6N
Gen Set Engine
3126B
Marine Engine
3126BC7
Combine
465460470
Pipelayer
561N
Wheeled Excavator
M325C MH
Industrial Engine
3126B
Logger
322C
Excavator
325C L322C FM322C325C FM325C
Mobile Hyd Power Unit
325C
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Pumper
SPP101
Warranty Information
Return Policy
Parts diagram for 150-4105
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 150-4105
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Description for part number 150-4105
Description: Backup Rings prevent seal extrusion in high pressure applications, and may be used to protect the life of overall sealing system from pressure surges.
Attributes: Cat® Backup Rings are designed in conjunction with the elastomeric seal and mating components, and contribute significantly to the life and performance of the sealing system in high pressure applications.
Backup ring dimensions are consistently held to tight tolerances to ensure they properly bridge the seal groove and the mating surface. Materials are selected for their pressure and abrasion resistance.
Backup rings may be solid or split. Split rings are used for ease of assembly.
Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Applications: Backup rings are used in high pressure static and dynamic sealing applications, such as hydraulic pumps, valves and engine systems.
Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
Cross Section Width (mm): 2.5
Cross Section Height (mm): 1.8
Material: Rubber,Fluoroelastomer (FKM) Rubber
Inside Diameter (mm): 35
Seal/O-Ring Type: Solid
Inside Diameter (in): 1.37
Cross Section Height (in): 0.07
Radial Thickness (mm): 2
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Compatible Models for part number 150-4105
PUMPER
SPP101
TRUCK ENGINE
3126E 3126B 3126
INTEGRATED TOOLCARRIER
IT62G II IT38G II
COMBINE HARVESTER
460
WHEEL HARVESTER
570B 580B
ENGINE
3126E
TRACK LOADER
953C 963C
PETROLEUM ENGINE
3126B
MOTOR GRADER
120H 135H
WHEEL LOADER
938G II 950G II 962G II
TRACK-TYPE TRACTOR
D5N D6N
GEN SET ENGINE
3126B
MARINE ENGINE
3126B C7
COMBINE
465 460 470
PIPELAYER
561N
WHEELED EXCAVATOR
M325C MH
INDUSTRIAL ENGINE
3126B
LOGGER
322C
EXCAVATOR
325C L 322C FM 322C 325C FM 325C
MOBILE HYD POWER UNIT
325C
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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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