New 0L1178 Cap Screw Replacement suitable for Caterpillar Equipment
- New Cap Screw Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 0L1178 Hex Bolt
â–¶Specification for 0L1178 Hex Bolt
â–¶Exact Fit Guarantee for 0L1178 Hex Bolt
â–¶| Dimensions | 1.18x1.18x2.36 |
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Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.
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Very nice job
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Had a great experience with ordering correct engine gaskets for our 3208 caterpillar engine
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Satisfied Customer.
I made my first purchase from Propel Parts last week. I was very happy with the response time and the delivery was fast, fast, fast! Also, the quality of the product is superb and at a great low price.
Keep up the great work! -
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.
Frequently Asked Questions
What is the Caterpillar 0L1178 cap screw used for?
The 0L1178 cap screw is designed to provide secure fastening in Caterpillar equipment assemblies, helping maintain stability and proper component alignment during heavy-duty operation.
What are the benefits of using a high-quality cap screw?
- Helps maintain strong and reliable fastening strength
- Reduces loosening caused by vibration and heavy loads
- Supports longer service life for connected components
What are common signs that a cap screw should be replaced?
Common signs include stripped threads, corrosion, stretching, cracking, or difficulty maintaining the correct torque during installation.
Can damaged cap screws affect equipment performance?
Yes, worn or weakened cap screws may lead to loose assemblies, uneven pressure distribution, and premature wear on surrounding components.
Is the 0L1178 cap screw compatible with multiple Caterpillar machines?
Yes, this cap screw may fit various Caterpillar equipment applications depending on the model and assembly type. Check your manual or reach out to Propel Parts for help verifying fitment.
Are aftermarket replacement cap screws reliable?
Yes. High-quality aftermarket cap screws that meet or exceed OEM specifications provide dependable durability and fastening performance in demanding operating conditions.
Are related fastening components commonly used with this cap screw?
Yes, components such as the Caterpillar 2S0115 / 4D6989 hard washer are often paired with cap screws to improve load distribution and fastening stability.

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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