Details
Description for 5D6644 General Shim
â–¶Specification for 5D6644 General Shim
â–¶Exact Fit Guarantee for 5D6644 General Shim
â–¶Reviews
Customer Reviews
Great site and price
Fast response and answers all my questions in a polite manner. Highly recommend.
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.
Very thorough ! Confirmed order and great communications.
They were great to deal with
A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
Excellent and prompt response.
Propel parts team helped me greatly regarding a special request and I always get prompt response.
They’re fantastic!
La mejor experiencia y calidad
Original Review (Portuguese)
Muito bom atendimento
Ótima empresa
English Translation
Very good service.
Excellent company.
They are great !
Product Questions
Frequently Asked Questions
What is the 5D6644 washer used for?
The 5D6644 is a washer that distributes load under a bolt or nut, guarding the mating surface and supporting consistent clamp force.
How do I install the 5D6644 washer?
A reliable installation of the 5D6644 starts with inspection and ends with verification. Follow this process:
- Power down the machine and isolate the assembly before service
- Clean the seating surface and check it for damage or burrs
- Place the 5D6644 in the correct orientation under the fastener
- Torque the fastener to specification so the washer seats evenly
Which Caterpillar machines is the 5D6644 compatible with?
Compatibility for the 5D6644 washer varies by machine and configuration, so cross-check it for your Caterpillar equipment before ordering. Or reach out to Propel Parts for help verifying fitment.
Does the 5D6644 washer meet performance standards?
Yes. The 5D6644 is engineered to meet OEM specifications for material, dimensions, and durability. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so the part performs the way it was designed to.
How often should the 5D6644 be replaced?
The 5D6644 is typically renewed during scheduled service or a related repair. In demanding, high-hour operation, inspect it more often to stay ahead of wear.
What are the signs of a worn or failing 5D6644 washer?
Catching a failing 5D6644 early prevents wider damage. The common warning signs include:
- A joint that won't hold torque
- Cupping, cracking, or flattening of the washer
- Marking or embedding into the mating surface
- Corrosion that weakens the contact area
Why is the 5D6644 important, and what related parts work with it?
Keeping the 5D6644 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. Related hardware on our site includes 4E9311 Bolt and 1D4626 Cap Screw.
Compatible Models
This 5D6644 General Shim is compatible with the following models:
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12F, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14E, 160G, 160H, 160H ES, 160H NA, 160K, 163H & more...
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.
Exact Fit Guarantee
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
Know your part number?
Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.We Make It Right
Wrong part? We'll make it right.Fast. At our expense.

