New 9X6620 Lock-Nut Replacement suitable for Caterpillar Equipment

$0.87
In Stock • Ships Today • Order By 3pm ET
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Description for 9X6620 Self-locking Nut

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This aftermarket Caterpillar 9X6620 Self-locking Nut 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 Self-locking Nut.
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 9X6620 Self-locking Nut

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Replacement Part Number(s): 9X-6620
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: 0.30 LBS | 0.14 KG
Dimensions: 0.39 x 0.39 x 0.20 (inches)
Condition: New

Exact Fit Guarantee for 9X6620 Self-locking Nut

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Looking for a reliable replacement Caterpillar 9X6620 Self-locking Nut ? 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.
Reviews

Customer Reviews

★★★★★

This is a great company to work with. Our sales associate Anthony quickly located the correct part and sent it out right away.

★★★★★

:) great service

★★★★☆

Above and Beyond
Staff took care of issue that was nit created by them. Package was lost by UPS. Propel sent me another part Next Day Air to correct it.

★★★★★

Good service, quick response.

★★★★★

My part was damaged in shipping and everyone was very helpful on get it resolved and sent me another free of charge.

★★★★★

Excellent service and very very good service

★★★★★

Quick Respond.
The quick respond much appreciated.
Keep this up.

★★★★★

perfect service

★★★★★

Customer service was excellent today! I have never had a company go behind the scenes to see what was happening with my payment error and resolve it so I could complete my order without having to do it all over again. Hats off to Propel Parts!

★★★★★

Great service!

Product Questions

Frequently Asked Questions

What is the Caterpillar 9X6620 lock nut used for?

The 9X6620 lock nut is a fastening component designed to securely hold bolts in place in Caterpillar equipment assemblies. Its locking design prevents loosening caused by vibration or heavy-duty operation, making it ideal for use in engines, turbo systems, and other critical mechanical connections.

Is the 9X6620 lock nut compatible with multiple Caterpillar machines?

Compatibility of the 9X6620 can differ depending on the machine model and serial number. Verify fitment in your service manual before purchasing, or reach out to Propel Parts — our team can quickly confirm the right part for your equipment.

What are the key specifications of the 9X6620 lock nut?

This lock nut typically features an M10 thread size with a 1.5 thread pitch and is approximately 9–10 mm thick. It is commonly made from durable stainless steel with protective coating to resist corrosion and ensure long-term performance in demanding environments.

Why is a lock nut important for heavy equipment?

Yes, it does. Engineered to meet OEM specifications, the 9X6620 is a dependable replacement for the original part. If you\'re unsure whether it\'s the right match for your machine, contact Propel Parts and our team can assist.

Is the 9X6620 an OEM or aftermarket replacement part?

The 9X6620 lock nut is available as a high-quality aftermarket replacement built to OEM specifications, ensuring similar fit, durability, and performance as the original Caterpillar part.

How can I confirm the 9X6620 lock nut will fit my equipment?

The best way to confirm fitment is by checking your machine's serial number or original part number. Many suppliers also verify compatibility using Caterpillar service databases before shipping to ensure the part matches your equipment.

When should I replace a Caterpillar lock nut?

Inspect the 9X6620 regularly and replace it at the first sign of wear, cracking, or leakage. Replacing it during scheduled service is often more cost-effective than waiting for a failure that could damage other components.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?
Compatible Models

This 9X6620 Self-locking Nut is compatible with the following models:
120M, 12H, 12M 2, 12M 3, 12M 3 AWD, 140H, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 14H, 14M, 160H, 160M, 160M 2, 160M 3, 160M 3 AWD, 163H, 16H, 16M, 205B, 211B, 214B, 2864C, 3114, 3116, 3126, 3126B & more...

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.

Exact Fit Guarantee

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