Gates 90K-39381 Serpentine Belt Drive Component Kit

Reliable Serpentine Belt Drive Kit for BMW Vehicles

The Gates Accessory Belt Drive Kit 90K-39381 is engineered to provide precise fitment and dependable performance for a range of BMW models. Designed to maintain optimal accessory drive system function, this kit includes a serpentine belt and tensioner assembly tailored to exact specifications.

• Includes serpentine belt (Part Number K060455) and tensioner assembly (Part Number 39381)
• Belt outside circumference: 1170 mm (46.051 inches)
• Belt top width: 20 mm (0.807 inches)
• Compatible with multiple BMW models including 330i, 340i, 440i, 530i, 540i, 740i, M240i, M340i, X3, X4, X5, and X7
• Part of the Gates Accessory Belt Drive Kit product line for accessory drive system components

Product Line Overview: Gates Accessory Belt Drive Kit

The Gates Accessory Belt Drive Kit line focuses on providing complete serpentine belt drive components designed to meet OEM specifications. This kit combines a high-quality belt and tensioner assembly to ensure proper tension and alignment, which are critical for the accessory drive system's longevity and performance in BMW vehicles.

Detailed Product Description

This serpentine belt drive component kit includes a belt with an outside circumference of 1170 mm (46.051 inches) and a top width of 20 mm (0.807 inches), matching the exact dimensions required for proper fitment. The included tensioner assembly (part number 39381) is designed to maintain correct belt tension, reducing slippage and wear. The belt itself is identified by part number K060455, ensuring compatibility and ease of replacement. This kit is specifically compatible with a wide range of BMW models such as the 330i, 340i, 440i, 530i, 540i, 740i, M240i, M340i, and various X series SUVs, including xDrive variants.

Common Applications and Issues Addressed

• Replacement of worn or cracked serpentine belts in BMW 330i, 340i, and 440i models
• Resolving belt slippage or squealing noises due to tensioner failure
• Addressing accessory drive system malfunctions caused by improper belt tension
• Preventing premature wear of pulleys and accessories by maintaining correct belt alignment
• Upgrading to OEM-spec components for reliable accessory drive performance

Installation Notes and Tips

Ensure the vehicle is turned off and cooled before beginning installation. Verify the belt routing matches the vehicle’s service manual. Use appropriate tools to remove the old belt and tensioner assembly carefully. When installing the new tensioner, confirm it moves freely and applies proper tension to the belt. Double-check belt alignment on all pulleys to prevent premature wear or noise. Refer to the BMW model-specific service guide for torque specifications and detailed procedures.

Quality Assurance and Warranty

Gates manufactures the Accessory Belt Drive Kit 90K-39381 to meet or exceed OEM standards for durability and performance. Each component undergoes rigorous quality control to ensure reliable operation within the accessory drive system. While specific warranty details are not provided here, Gates typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized distributors for warranty terms related to this kit.