2N2766 Caterpillar Self-locking Nut propelparts

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2n2766 Lock Nut for CAT 12G, 12H, 12H ES & more

Name: 2n2766 Lock Nut for CAT 12G, 12H, 12H ES & more
Brand: Aftermarket CAT
SKU: 2N2766CTP
Price: 0.75 USD
Availability: InStock
Rating: 4.7 (112 reviews)

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New Lock Nut Replacement suitable for Caterpillar Equipment
Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$0.75

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4.7

(Site rating)

In Stock | Ships Out Today | Order By 3pm ET

SKU

2N2766CTP

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Details

Description for 2N2766 Self-locking Nut

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This aftermarket Caterpillar 2N2766 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 2N2766 Self-locking Nut

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Replacement Part Number(s): 2N-2766

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: 0.02

Condition: New

Exact Fit Guarantee for 2N2766 Self-locking Nut

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Looking for a reliable replacement Caterpillar 2N2766 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.

More Information

More Information
Models	120G, 12G, 12H, 12H ES, 12H NA, 130G, 140B, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 1673C, 1674, 1693, 16G, 16H NA, 215B, 229D, 235, 235B, 235C, 245
Dimensions	0.59x0.59x0.20

Reviews

Customer Reviews

Dale Evans (Missouri, USA) 10/29/2025

100%

Great prices prompt courteous customer service and fast shipping.
Robert 03/15/2024

100%

Helpful with making sure parts fit my machine
Manuel Rodríguez (Florida, USA) 04/25/2024

100%

100% excelente
Gail Lauer (South Carolina, USA) 12/05/2023

100%

Great site and price
Marcelo’s sand & loam (Texas, USA) 11/30/2023

100%

Science I buy parts from propel parts I don’t have to spend too much down time always on time and good service

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Product Questions

Frequently Asked Questions

Product

What is the function of the 2N2766 lock nut?

The 2N2766 lock nut is a fastening component designed to secure bolts and threaded assemblies in engines and machinery. It helps prevent loosening due to vibration or dynamic loads, maintaining tight connections in critical applications.

How do I install the 2N2766 lock nut?

Please follow these general steps for proper installation:

Ensure the engine or machine is turned off and safely supported.
Place the lock nut onto the threaded stud or bolt and hand-thread it to the desired position.
Use the specified wrench or socket to tighten the lock nut to the torque recommended in your service manual.
Confirm the locking feature engages correctly to help resist loosening during operation.

Always refer to your equipment’s service documentation for exact torque values and safety procedures.

Which applications or systems use the 2N2766 lock nut?

The 2N2766 lock nut is used in a variety of engine and machine applications where secure fastening is critical, including mounting brackets, housings, or assemblies subject to vibration. Verify compatibility with your machine’s part references or service manual before ordering to ensure it fits your specific application. Check your manual or reach out to Propel Parts for help verifying fitment.

Does the 2N2766 lock nut meet performance expectations?

Yes, the 2N2766 lock nut is engineered to meet or exceed OEM specifications for fastening strength and durability. When replacing hardware, choose genuine or high-quality aftermarket parts that meet or exceed OEM expectations to ensure reliable fastening and long-lasting performance under demanding conditions.

How often should a lock nut like the 2N2766 be inspected or replaced?

Lock nuts should be inspected during routine maintenance or whenever assemblies are disassembled. Check for signs of loosening, thread wear, or corrosion. If the lock nut can no longer maintain secure tension or shows damage, it should be replaced to preserve proper fastening integrity.

What are common signs that the 2N2766 lock nut needs attention?

Typical indicators include:

Visible loosening or play on the threaded assembly
Corrosion or thread damage
Difficulty holding torque
Vibrations or noise from the fastened area

Addressing these signs promptly helps prevent further component issues and maintain safe operation.

Why is using a quality lock nut important for equipment performance?

A quality lock nut ensures that fastened components stay secure, even under vibration and dynamic loads. Using genuine or high-quality aftermarket parts that meet or exceed OEM expectations helps reduce the risk of loosening or failure, supports overall equipment reliability, and contributes to longer service life of assemblies.

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Compatible Models

This 2N2766 Self-locking Nut is compatible with the following models:
120G, 12G, 12H, 12H ES, 12H NA, 130G, 140B, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 1673C, 1674, 1693, 16G, 16H NA, 215B, 229D, 235, 235B, 235C, 245 & more...

Returns & Warranty

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.

Shipping

Same Day Shipping

Orders placed weekdays, by 3pm ET, ship out same day.

United States & Canada

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International Shipping

We have served customers in over 90 countries. Click Check Delivery Time .