New 8Y4388 Lining/8V1661 Replacement suitable for Caterpillar Equipment
- New Lining/8V1661 Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 8Y4388 Lining
â–¶Specification for 8Y4388 Lining
â–¶Exact Fit Guarantee for 8Y4388 Lining
â–¶| Dimensions | 8.00x8.00x1.00 |
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I made my first purchase from Propel Parts last week. I was very happy with the response time and the delivery was fast, fast, fast! Also, the quality of the product is superb and at a great low price.
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Science I buy parts from propel parts I don’t have to spend too much down time always on time and good service
Frequently Asked Questions
What is the 8Y4388 disc used for?
The 8Y4388 is a friction or drive disc that needs an even surface to engage reliably and handle the heat generated in service.
How do I install the 8Y4388 disc?
To install the 8Y4388 properly, prepare the area first and confirm the result afterward. Use these steps:
- Shut down the machine and follow lockout procedures
- Remove the old disc and inspect the housing and mating faces
- Clean all contact areas and check for warping or glazing
- Install the 8Y4388 in the correct orientation and stack order
- Reassemble to specification and confirm smooth engagement
Which Caterpillar machines is the 8Y4388 compatible with?
Fitment for the 8Y4388 depends on your specific Caterpillar model and the assembly it serves, so confirm the application before you order. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.
Does the 8Y4388 disc meet performance standards?
Yes. The 8Y4388 is manufactured to meet OEM specifications for tolerance and material quality. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications for dependable, long-term performance.
How often should the 8Y4388 be replaced?
Plan to replace the 8Y4388 during a rebuild of the surrounding components, or sooner if inspection shows it is past its serviceable limit. When servicing this area, the 8M4295 Spring is commonly replaced at the same time.
What are the signs of a worn or failing 8Y4388 disc?
A worn 8Y4388 usually gives early warning through the assembly it supports. Watch for these signs:
- Slipping or inconsistent engagement
- Reduced performance under load
- Glazing, scoring, or thinning of the surface
- Unusual noise, heat, or a burning smell
Why is the 8Y4388 disc important, and what related part is commonly replaced with it?
A sound 8Y4388 is inexpensive insurance against larger repairs. Servicing it on time with parts that meet OEM specifications keeps the whole assembly working as intended. During an overhaul, the 7K1293 Strip is frequently replaced alongside this part.

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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