New 1A8651 Hex Cap Screw Replacement suitable for Caterpillar Equipment

  • New Hex Cap Screw Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

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$1.89
In Stock • Ships Today • Order By 3pm ET
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SKU
1A8651CTP
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Description for 1A8651 Hex Bolt

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This aftermarket Caterpillar 1A8651 Hex Bolt is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Hex Bolt.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 1A8651 Hex Bolt

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Replacement Part Number(s): 1A-8651
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.50 LBS | 0.23 KG
Dimensions: 4.92 x 0.63 x 0.94 (inches)
Condition: New

Exact Fit Guarantee for 1A8651 Hex Bolt

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Looking for a reliable replacement Caterpillar 1A8651 Hex Bolt ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Dimensions 4.92x0.63x0.94
Customer Reviews
  1. 100%
    At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.

    However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.

    I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.

    In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.

    Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides.
  2. 100%
    Had a great experience with ordering correct engine gaskets for our 3208 caterpillar engine
  3. 100%
    Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
  4. 100%
    Fast response and answers all my questions in a polite manner. Highly recommend.
  5. 100%
    Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
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Frequently Asked Questions

Product

What is the 1A8651 cap screw used for?

The 1A8651 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 1A8651 cap screw?

To install the 1A8651 properly, prepare the area first and confirm the result afterward. Use these steps:

  1. Shut the machine down and isolate power before service
  2. Verify the thread condition on both the 1A8651 and its bore
  3. Clean the mating surfaces so nothing interferes with seating
  4. Hand-thread the screw first, then bring it to the initial torque
  5. Apply the final torque in the sequence given in your manual
  6. Re-check after the first operating cycle if the manual advises

Which Caterpillar machines is the 1A8651 compatible with?

Fitment for the 1A8651 depends on your specific Caterpillar model and the assembly it serves, so confirm the application before you order. Check your manual or reach out to Propel Parts for help verifying fitment.

Does the 1A8651 cap screw meet performance standards?

Yes. The 1A8651 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 1A8651 be replaced?

Plan to replace the 1A8651 during a rebuild of the surrounding components, or sooner if inspection shows it is past its serviceable limit. When servicing this area, the 7M1848 Shim is commonly replaced at the same time.

What are the signs of a worn or failing 1A8651 cap screw?

A worn 1A8651 usually gives early warning through the assembly it supports. Watch for these signs:

  • 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 1A8651 cap screw important, and what related part is commonly replaced with it?

A sound 1A8651 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 1K6870 Lock Nut is frequently replaced alongside this part.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or 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.

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