9L-6639 V-Belt for Caterpillar Engines 3408 3412 Trucks 773B 769C Loaders 988B

9L-6639 V-Belt – High-Quality Aftermarket Replacement for Caterpillar Engines

Ensure reliable power transmission in your Caterpillar engine with this premium aftermarket 9L-6639 V-belt. Engineered as a direct OEM replacement, it provides excellent grip and durability for fan/alternator drives, preventing slippage and maintaining efficient operation in heavy-duty industrial, mining, and construction applications.

Key Features

Prevents Slippage & Power Loss: High-strength construction delivers consistent tension and grip for optimal accessory drive performance.
Direct Fit Installation: Matches genuine Cat specs for quick, no-modification replacement – easy to install during routine belt service.
Built Tough for Heavy Duty Use: Heat- and wear-resistant material withstands extreme conditions for long-lasting reliability on job sites.
Cost-Effective Alternative: OEM-level quality at aftermarket pricing – ideal for fleet maintenance and budget-conscious operations.
Fast Shipping: In stock and ready to ship within 1-3 days.

Compatible Equipment Models

Engines: 3408, 3408B, 3408C, 3412, 3412C, 3412E Trucks: 769C, 769D, 773B, 773D, 773E, 775D, 775E Caterpillar

Wheel Loaders: 988B, 988F, 988F II, 992C, 992D Caterpillar

Bulldozers: 834B Other: gen sets, industrial engines, petroleum Caterpillar

Specifications

Part Number	9L-6639 (9L6639)
Part Type	V-Belt
Application	Equipment Repair and Replacement
Brand	WINSCHEN
Country of Origin	China
SKU	CTC-9L-6639
MOQ	1 PCS
Delivery Time	1-3 business days

Questions? Contact us for fitment confirmation or bulk pricing. We stand behind our parts with fast shipping and easy returns.

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