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New 8C8451 Bolt Replacement suitable for Caterpillar Equipment
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Description for 8C8451 Hex Bolt
â–¶Specification for 8C8451 Hex Bolt
â–¶Exact Fit Guarantee for 8C8451 Hex Bolt
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Customer Reviews
Received 15 items within 5 days from placing order !
Great. !
Great pricing and fast shipping!
I'll admit that I was skeptical of propel parts, but they are an honest site and came through with the order. I was skeptical because I've never ordered heavy machinery parts, and didn't know who to trust. The parts that I ordered showed in stock, but after checking with their vendor, they only had half of the order in stock. I was notified the day after the order, and most of the parts arrived in a few days. There was one part that was not shipped putz but I was able to talk with who I assumed is the owner who rectified the situation and had the part overnighted to me.
I will say that communication speed could use a little work, but they will eventually get back with you.
Excellent service!! Yes, very satisfied with the service, you have been very kind!
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.
Quality Caterpillar parts
Very fast delivery and respons from Propel Parts
This is my second time that I bought something from it, first time delivery time was in one week from US to Serbia
Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again
Awesome service prices and quality parts
I’ve been ordering parts from propel for about 3 years & counting. I live in Hawaii where we have a hard time getting parts especially for decent prices with fast shipping. I've been 100% satisfied with the company and the customer service and will continue to use them. I recommend propel to everyone here in Hawaii and we are all happy to have you guys. Thank you!!!
Rapid response! Excellent service!
Amazing service, emails answered very quickly with simple straight forward answers. Haven’t received the parts yet but ordering them was quick and easy.
Product Questions
Frequently Asked Questions
What is the Caterpillar 8C8451 bolt used for?
A: The 8C8451 is a heavy-duty bolt used in Caterpillar equipment to secure critical components in engine, frame, and system assemblies. It is designed to withstand high clamping loads and vibration under demanding working conditions.
Is the 8C8451 a metric or imperial bolt?
A: This bolt meets the dimensional specifications defined by Caterpillar for the 8C8451 application. Refer to your parts manual for exact thread and size specifications to confirm compatibility.
Can I use an aftermarket bolt instead of the original?
A: Yes. When replacing, choose high-quality aftermarket bolts that meet or exceed OEM specifications. Our 8C8451 bolt is manufactured to match original Caterpillar standards for thread accuracy, strength grade, and dimensions.
Which Caterpillar machines use the 8C8451 bolt?
A: This bolt is compatible with various CAT machines. Check your equipment manual or reach out to Propel Parts for help verifying fitment.
Browse our full range of hardware parts for CAT equipment, including bolts, nuts, washers, and pins.
What is the correct torque for the 8C8451 bolt?
A: Always refer to the Caterpillar service manual for the specific torque specification for this bolt in your application. Proper torque is critical to ensure joint integrity without over-stressing threads or fastened components.
Should I replace this bolt during a major overhaul?
A: Yes. It is best practice to replace high-stress bolts during major engine or component overhauls. Bolts can stretch or fatigue over time, and using new high-quality aftermarket fasteners during rebuilds ensures optimal clamping force and joint reliability.
What warranty is included?
A: All Propel Parts products include a 12-month warranty from the date of invoice against material and manufacturing defects. Orders ship same day on weekdays when placed by 3pm ET.
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.
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