1M0644 CAT Bolt
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Description for 1M0644 Bolt
â–¶Specification for 1M0644 Bolt
â–¶Exact Fit Guarantee for 1M0644 Bolt
â–¶| Dimensions | 2.36x0.59x0.59 |
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Very nice job
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Great prices prompt courteous customer service and fast shipping.
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Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
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Very prompt services !
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Stevens the man. Placed my order and sent him the order # and had me in the loop within an hour.
Frequently Asked Questions
What is the 1M0644 bolt used for?
The 1M0644 bolt clamps components together with a controlled, repeatable force that holds them aligned under load and vibration. Reliable bolts are fundamental to a secure assembly.
How do I install the 1M0644 bolt?
Fitting the 1M0644 correctly comes down to clean surfaces and following the manual sequence. Work through these steps:
- Shut the machine down and isolate power before service
- Clean the threads and mating faces so debris doesn't affect clamp load
- Inspect the threaded bore and the 1M0644 for damage
- Start the bolt by hand to avoid cross-threading
- Torque it to the value and sequence listed in your service manual
- Re-check torque after the first operating cycle if the manual advises
Which Caterpillar machines is the 1M0644 compatible with?
The 1M0644 is matched to particular Caterpillar equipment, so always verify the application against your parts reference before purchasing. Please reach out to Propel Parts for help verifying fitment.
Does the 1M0644 bolt meet performance standards?
Yes. Propel Parts supplies the 1M0644 as a premium aftermarket part made to meet OEM specifications. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so you can fit it with confidence.
How often should the 1M0644 be replaced?
Replace the 1M0644 whenever the assembly it serves is overhauled, or any time it shows wear, damage, or corrosion. Following the intervals in your service manual is the best guide.
What are the signs of a worn or failing 1M0644 bolt?
When the 1M0644 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:
- Loss of torque or a slowly loosening joint
- Stripped, galled, or corroded threads
- Visible stretching or a necked-down shank
- Movement, fretting, or leaks at the joint
Why is the 1M0644 important, and what related parts work with it?
Replacing the 1M0644 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. Related hardware on our site includes 9L7712 Nut Jam and 9R9476 Shim 1 mm Thick.

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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