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5I7660 Crankshaft Rear Seal for CAT Equipment
- New Crankshaft Rear Seal Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 5I7660 Engine Seal
â–¶Specification for 5I7660 Engine Seal
â–¶Exact Fit Guarantee for 5I7660 Engine Seal
â–¶| Dimensions | 5.91x5.91x0.59 |
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Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.
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Awesome and diligent support. Would definitely recommend
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Excelente servicio rapido, responsable y confiable
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Fast response and answers all my questions in a polite manner. Highly recommend.
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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.
Frequently Asked Questions
What is the 5I7660 seal used for?
The 5I7660 seal keeps fluids contained and contaminants out where two surfaces meet or a shaft rotates. A sound seal maintains pressure, prevents leaks, and protects the components it isolates.
How do I install the 5I7660 seal?
A reliable installation of the 5I7660 starts with inspection and ends with verification. Follow this process:
- Shut down and depressurize the system, then let it cool if needed
- Remove the old seal and clean the bore and shaft surfaces
- Inspect the sealing surface for scoring, pitting, or wear
- Lightly lubricate the 5I7660 as directed and fit it square to the bore
- Seat it to the correct depth without distorting the lip, then check for leaks
Which Caterpillar machines is the 5I7660 compatible with?
The 5I7660 seal is used across many Caterpillar applications, but the correct fit depends on your exact model and assembly. Always cross-check fitment using your service manual or part reference guide before ordering. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Does the 5I7660 seal meet performance standards?
Yes. The 5I7660 is built to meet OEM specifications for fit, strength, and service life. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to keep the assembly protected.
How often should the 5I7660 be replaced?
Service life for the 5I7660 depends on operating conditions and load. Replace it on inspection findings or at the interval your manual specifies rather than waiting for a failure. The 2054832 Seal O-Ring is often renewed during the same service, so many technicians replace both at once to reduce downtime.
What are the signs of a worn or failing 5I7660 seal?
Catching a failing 5I7660 early prevents wider damage. The common warning signs include:
- Visible fluid leaks or seepage at the joint
- Loss of system pressure
- Contamination found inside the assembly
- A hardened, cracked, or torn sealing surface
Why is the 5I7660 seal important, and what related part is commonly replaced with it?
Keeping the 5I7660 in good condition protects the components around it and supports smooth, reliable operation. Maintaining the assembly with parts that meet OEM specifications helps you avoid unplanned downtime. For a complete repair, the 4N3955 Gasket Head is another component from the same assembly that is commonly replaced at the same time.
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.
Exact Fit Guarantee®
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1 YEAR UNLIMITED WARRANTY
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