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New 1D4639 Cap Screw High He Replacement suitable for Caterpillar Equipment
- New Cap Screw High He Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 1D4639 Hex Bolt
â–¶Specification for 1D4639 Hex Bolt
â–¶Exact Fit Guarantee for 1D4639 Hex Bolt
â–¶| Dimensions | 4.72x1.50x1.50 |
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Great affordable option for aftermarket parts
Found Propel Parts while looking for parts to repair a D6C dozer that has been sitting for 20 years. Great parts, great prices, fast shipping and excellent customer service. -
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Rapid response! Excellent service!
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The customer care response was very awesome. It was more than what I expected
The customer care response was very effective and timely
The response time was amazing
The availability of most of the parts that I wanted was also very awesome
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Frequently Asked Questions
What is the 1D4639 cap screw used for?
The 1D4639 is a cap screw used to fasten parts on Caterpillar equipment, delivering the controlled clamp load a secure joint depends on.
How do I install the 1D4639 cap screw?
A reliable installation of the 1D4639 starts with inspection and ends with verification. Follow this process:
- Shut the machine down and isolate power before service
- Verify the thread condition on both the 1D4639 and its bore
- Clean the mating surfaces so nothing interferes with seating
- Hand-thread the screw first, then bring it to the initial torque
- Apply the final torque in the sequence given in your manual
- Re-check after the first operating cycle if the manual advises
Which Caterpillar machines is the 1D4639 compatible with?
Compatibility for the 1D4639 cap screw varies by machine and configuration, so cross-check it for your Caterpillar equipment before ordering. Check your manual or reach out to Propel Parts for help verifying fitment.
Does the 1D4639 cap screw meet performance standards?
Yes. The 1D4639 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 1D4639 be replaced?
The 1D4639 is typically renewed during scheduled service or a related repair. In demanding, high-hour operation, inspect it more often to stay ahead of wear. The 9N3738 Washer 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 1D4639 cap screw?
Catching a failing 1D4639 early prevents wider damage. The common warning signs include:
- A joint that gradually loses torque or works loose
- Damaged, galled, or corroded threads
- Elongation or a thinned, necked shank
- Vibration, movement, or leaks where it clamps
Why is the 1D4639 cap screw important, and what related part is commonly replaced with it?
Keeping the 1D4639 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 7X0851 Nut 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.
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