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New 2S2251 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 2S2251 Seal O Ring
â–¶Specification for 2S2251 Seal O Ring
â–¶Exact Fit Guarantee for 2S2251 Seal O Ring
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Customer Reviews
Excellent service and very very good service
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
They are great !
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
Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
Australian buyer, sales where professional and very responsive with secure parts identification.
Highly recommend.
Bedrock Exploration Pty Lt, Australia
Customer Follow-Up After Delivery:
Thank you Deb and your colleague Anthony A for your help in supplying a replacement part which arrived in good time and is running smoothly.
I shall continue to use your services and recommend you to other remote miners, as your services and delivery times are better than our home-based suppliers.
With thanks again.
Regards, Gerard
Excellent and prompt response.
Propel parts team helped me greatly regarding a special request and I always get prompt response.
They’re fantastic!
Always helpful and great pricing
Cat blade pins.
Easy transaction good web site.
Quick Response. Very much appreciated.
Product Questions
Frequently Asked Questions
What is the Caterpillar 2S2251 O-ring seal used for?
A: The 2S2251 O-ring is a sealing component used in Caterpillar equipment to prevent fluid leaks at hydraulic, fuel, or engine system joints. It is installed in grooves on mating surfaces to create a reliable, pressure-resistant seal.
What is the material composition of the 2S2251 O-ring?
A: This O-ring is made from high-grade elastomeric material with chemical and thermal resistance suited for heavy equipment applications. It features a PTFE dry-film coating that reduces friction during installation and prevents the ring from twisting or tearing.
How do I know when this O-ring needs to be replaced?
A: Replace it when you observe fluid seeping from sealed connections, a deteriorated or cracked ring, reduced system pressure, or whenever a sealed joint is disassembled for service.
Which machines is the 2S2251 compatible with?
A: This O-ring fits specific Caterpillar equipment applications. Check your parts manual or reach out to Propel Parts for help verifying fitment with your machine model and serial number.
Browse our complete collection of O-ring seals for heavy equipment to find the right seal for every application on your CAT machine.
Is this O-ring a high-quality aftermarket part?
A: Yes. This is a premium high-quality aftermarket O-ring that meets or exceeds OEM specifications for material hardness, dimensions, and chemical compatibility, providing a reliable replacement for the original Caterpillar part.
How should I install the 2S2251 O-ring?
A: Clean the groove thoroughly before installation. Apply a light coat of system-compatible fluid to the O-ring. Carefully seat it in the groove without twisting or pinching. Always torque the mating connection to the specification in your Caterpillar service manual.
What warranty is included?
A: All Propel Parts products include a 12-month warranty against manufacturing and material defects from the invoice date. Same-day shipping is available on weekday orders placed by 3pm ET.
Shipping | Returns
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.
Easy Returns
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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