New 2J0157 Seal O Ring Replacement suitable for Caterpillar Equipment
- New Seal O Ring Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 2J0157 Seal O Ring
â–¶Specification for 2J0157 Seal O Ring
â–¶Exact Fit Guarantee for 2J0157 Seal O Ring
â–¶| Dimensions | 0.89x0.89x0.14 |
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Great affordable option for aftermarket parts
Found Propel Parts while looking for parts to repair a D6C dozer that has been sitting for 20 years. Great parts, great prices, fast shipping and excellent customer service. -
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I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.
Frequently Asked Questions
What is the Caterpillar O-Ring 2J0157?
The 2J0157 is a standard O-ring seal used across multiple Caterpillar equipment systems ??? including hydraulic, cooling, and fuel applications ??? to prevent fluid leakage at component interfaces and connection points.
Which machines or systems use the 2J0157 O-ring?
This O-ring is used across a wide range of Caterpillar equipment. Always verify your specific application using the parts manual for your machine. Please reach out to Propel Parts for help verifying fitment if needed.
What are signs the 2J0157 O-ring has failed?
Replace the O-ring if you see:
- Fluid seeping from the sealed connection
- Visible hardening, cracking, or permanent deformation of the ring
- Recurring leaks even after tightening hardware
- Signs of chemical swelling or deterioration
Early replacement prevents fluid loss and contamination of surrounding systems.
What material is the 2J0157 O-ring made from?
The 2J0157 is manufactured from nitrile rubber (NBR) or compatible elastomer material that meets or exceeds OEM specifications for Caterpillar sealing applications ??? including temperature resistance, hardness, and compatibility with petroleum-based fluids.
Is the 2J0157 a high-quality aftermarket O-ring?
Yes. The 2J0157 from Propel Parts is a premium aftermarket O-ring manufactured to exact dimensional and durometer specifications. It meets or exceeds OEM performance standards for Caterpillar equipment sealing.
Browse our complete collection of seals and gaskets for Caterpillar equipment including O-rings, gaskets, and seal kits.
How do I properly install the 2J0157 O-ring?
Clean the groove, lubricate lightly with clean system fluid, and seat the O-ring without twisting. Assemble the joint carefully and torque fasteners to specification. Confirm there are no leaks once the system is pressurized.
Should I order multiple O-rings at once?
Yes ??? ordering several is a good idea, especially for older machines where multiple seals may be near end of life. Keeping spares on hand reduces downtime during unexpected failures.
Consider purchasing a complete seal kit to address all O-rings in a circuit or assembly at once.

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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