
New 0951681 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 951681 Seal O Ring
â–¶Specification for 951681 Seal O Ring
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Customer Reviews
Having issue running my credit card, Steven was more than helpful to send me a payment link to complete my transaction!
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!
Stevens the man. Placed my order and sent him the order # and had me in the loop within an hour.
Propel parts is a very reliable parts source for heavy equipment
Quick response,good quality parts,favourable prices and always deliver on time
The customer care response was very awesome. It was more than what I expected
The customer care response was very effective and timely
The response time was amazing
The availability of most of the parts that I wanted was also very awesome
Thanks keep it up
:) great service
Great service affordable parts
Great prices prompt courteous customer service and fast shipping.
Awesome service prices and quality parts
The best supplier ever we mainly deal with most rare needed parts .. i highly recommend .. they are very very honest
Product Questions
Frequently Asked Questions
What is the Caterpillar 0951681 O-ring seal used for?
A: The 0951681 O-ring is a sealing component used in Caterpillar equipment to prevent fluid leaks at hydraulic, engine, or fuel system connections. Maintaining intact O-rings throughout your machine is essential for preventing costly fluid loss and system pressure failures.
Is the 0951681 a standard-size O-ring?
A: The 0951681 is a Caterpillar-specific O-ring sized to exact OEM dimensions. Always match the part number when ordering to ensure precise fit in your equipment's grooves and sealing surfaces.
How do I know this O-ring fits my machine?
A: This O-ring is designed for specific Caterpillar models and systems. If you are unsure, don't hesitate to reach out to Propel Parts for help verifying fitment.
Browse our dedicated category of O-ring seals for heavy machinery to find your exact size and application.
Is this an aftermarket O-ring?
A: Yes. This is a high-quality aftermarket O-ring that meets or exceeds OEM specifications for material hardness, dimensions, and chemical resistance. When replacing, choose high-quality aftermarket parts that meet or exceed OEM expectations for reliable sealing performance.
What is the material composition of this O-ring?
A: The 0951681 O-ring is made from high-grade elastomeric compounds with resistance to hydraulic fluids, engine oil, heat, and wear. Our O-rings include a PTFE coating that eases installation and reduces the chance of twisting during fitting.
How should I store unused O-rings?
A: Store O-rings away from direct sunlight, heat sources, and ozone-producing equipment. Keep them in a cool, dry environment in their original packaging. Improper storage can cause premature hardening or cracking, reducing their sealing effectiveness.
What warranty is provided with this O-ring?
A: All Propel Parts products include a 12-month warranty against manufacturing and material defects from the original 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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