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New 0951579 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 951579 Seal O Ring
â–¶Specification for 951579 Seal O Ring
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Customer Reviews
Great customer services, the best
Been buying from them for years and have almost never had an issue. The few times I had a question or something to handle, they have shown amazing customer service. Great product and a great company.
Fast communication, and very Helpful!
My part was damaged in shipping and everyone was very helpful on get it resolved and sent me another free of charge.
Excellent and prompt response.
Propel parts team helped me greatly regarding a special request and I always get prompt response.
They’re fantastic!
The gentleman was very helpful
Customer service was excellent today! I have never had a company go behind the scenes to see what was happening with my payment error and resolve it so I could complete my order without having to do it all over again. Hats off to Propel Parts!
The best supplier ever we mainly deal with most rare needed parts .. i highly recommend .. they are very very honest
Great prices prompt courteous customer service and fast shipping.
Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again
Product Questions
Frequently Asked Questions
What is the Caterpillar O‑Ring Seal 0951579 used for?
The Caterpillar O‑Ring Seal 0951579 is a precision sealing component that helps prevent fluid leaks in engines, hydraulic systems, and other critical assemblies on Caterpillar equipment. By creating a tight barrier between mating surfaces, it helps maintain proper fluid pressure and protects internal components from contaminants.
Which Caterpillar machines commonly use the 0951579 O‑Ring?
Machine configurations and serial number ranges can affect whether the 0951579 is the right fit. Check your equipment manual to confirm, or contact Propel Parts and our team will help identify the correct part for your application.
What does an O‑Ring seal do in heavy‑duty equipment?
An O‑Ring seal like the 0951579 forms a secure, flexible barrier that prevents leaks and blocks contaminants from entering fluid systems. It helps maintain fluid pressure, lubrication integrity, and smooth operation in engine, hydraulic, and cooling systems — essential for dependable Caterpillar equipment performance.
Is the 0951579 O‑Ring an OEM or aftermarket replacement part?
A premium aftermarket option built to meet OEM specifications, the 0951579 is designed to fit and perform like the original. The Propel Parts team can help confirm it\'s the right match before you order.
How do I install the 0951579 O‑Ring correctly?
To install the 0951579 O‑Ring properly:
- Clean the sealing surfaces thoroughly to remove old sealant, dirt,
> and debris.
- Inspect the O‑Ring for damage before installation.
- Carefully position the O‑Ring into its groove without stretching or
> twisting. Reassemble mating components and tighten fasteners to the torque specifications in your equipment's service manual. Correct installation helps ensure a secure, leak‑resistant seal.
What are common signs that the 0951579 O‑Ring needs replacement?
Signs you may need to replace this O‑Ring include:
- Visible fluid leaks around joints or housings
- Loss of oil, coolant, or hydraulic pressure
- Contaminated fluid due to seal failure
- Unusual noise or overheating from fluid loss
Regular inspection during maintenance can help catch seal wear early and prevent bigger repairs.
Why is using the correct O‑Ring important for Caterpillar equipment?
Using a 0951579 that matches OEM specifications ensures it integrates correctly into the system, maintaining proper sealing, load distribution, or mechanical function. Incorrect parts can lead to premature failure and damage to adjacent components.
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Shipping
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.
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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.
Warranty
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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