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New 8M4987 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 8M4987 Seal O Ring
â–¶Specification for 8M4987 Seal O Ring
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Customer Reviews
The gentleman was very helpful
Grateful I found this company!
I’m grateful I found this company! They answer the phone every time plus the parts are packaged very well!! Even the angriest mailman couldn’t damage your parts! lol The parts showed up as planned and for being aftermarket the quality seems to be good!! The warranty is the same as CAT. Thank you Daniel!!!
This is a great company to work with. Our sales associate Anthony quickly located the correct part and sent it out right away.
Stevens the man. Placed my order and sent him the order # and had me in the loop within an hour.
Good Stuff.
We have had a couple shipping issues, but each time they made it right and we ended up getting what we need. Quality parts at half the price of OEM.
Great prices prompt courteous customer service and fast shipping.
Great service affordable parts
rapid response!
Propel parts is a good Cat vendor that provides a top notch service to customers from ordering to delivery. Their after sales service is really impressive.
I’ve been ordering parts from propel for about 3 years & counting. I live in Hawaii where we have a hard time getting parts especially for decent prices with fast shipping. I've been 100% satisfied with the company and the customer service and will continue to use them. I recommend propel to everyone here in Hawaii and we are all happy to have you guys. Thank you!!!
Product Questions
Frequently Asked Questions
What is the 8M4987 seal O-ring used for?
The 8M4987 seal O-ring is designed to create a secure seal in Caterpillar engine and equipment systems. It helps prevent leaks of air, oil, or other fluids while maintaining proper pressure within the system. A properly functioning 8M4987 O-ring helps protect internal components from contamination and supports reliable equipment performance.
Which equipment is compatible with the 8M4987 seal O-ring?
Found in a variety of Caterpillar engine and heavy equipment applications, the 8M4987 is a reliable replacement for the original part. Compatibility can differ by serial number and configuration, so verifying the part number in your service manual is recommended before ordering. Contact Propel Parts if you\'d like the team to confirm fitment.
What are the signs that a 8M4987 seal O-ring needs replacement?
A worn or damaged 8M4987 O-ring can lead to several operational problems, including:
- Oil or air leaks around sealed components
- Loss of system pressure
- Reduced engine or hydraulic system efficiency
- Cracked, flattened, or hardened sealing material
Replacing worn seals early helps prevent internal contamination and protects expensive equipment components.
Does the 8M4987 seal O-ring meet performance standards?
Yes, it does. Engineered to meet OEM specifications, the 8M4987 is a dependable replacement for the original part. If you\'re unsure whether it\'s the right match for your machine, contact Propel Parts and our team can assist.
How do you install the 8M4987 seal O-ring?
Proper installation helps maintain effective sealing and prevent leaks. General installation steps include:
- Turn off the equipment and allow it to cool completely.
- Disassemble the component where the O-ring is located.
- Carefully remove the worn or damaged O-ring.
- Clean the sealing groove and surrounding surfaces.
- Install the new 8M4987 seal O-ring and ensure it sits evenly in the groove.
- Reassemble the component and tighten according to manufacturer specifications.
Always follow the service manual for your Caterpillar equipment for the correct installation procedure.
How often should the 8M4987 seal O-ring be replaced?
Seal O-rings do not have a fixed replacement interval, but they should be inspected during routine equipment maintenance, engine service, or when system components are disassembled. In demanding environments with high temperatures or pressure, replacing worn seals like the 8M4987 O-ring helps maintain system integrity and prevents unexpected leaks.
Can I use a premium aftermarket 8M4987 seal O-ring replacement?
Of course. Premium aftermarket 8M4987 replacements built to OEM standards are a common and practical choice. What matters most is selecting a part that meets the required specs — ensuring proper fitment and reliable long-term performance.
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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