Gates K040337 Serpentine Belt - Air Conditioning or Alternator

Reliable Serpentine Belt for Audi, Porsche, Subaru, and Volkswagen

The Gates Premium OE Micro-V Belt K040337 is engineered to meet original equipment specifications for select Audi, Porsche, Subaru, and Volkswagen models. Designed for durability and consistent performance, this serpentine belt ensures efficient accessory drive system operation.

• Top width options: 0.56 inch and 14 mm
• Effective length: 33.75 inches (857 mm)
• Outside circumference: 34.25 inches (871 mm)
• Constructed with EPDM belt material and polyester cord for strength and flexibility
• 4-rib automotive v-ribbed belt with K cross section design
• Compatible with washer pumps made from EPDM

About the Gates Premium OE Micro-V Belt Line

The Premium OE Micro-V Belt line from Gates is designed to provide OE performance and fitment for a range of vehicles. This product line focuses on delivering reliable power transmission through advanced materials like EPDM and polyester cords, ensuring long service life and resistance to wear. The K040337 part is part of this line, offering precise dimensions and construction to match original equipment standards for vehicles such as the Audi A4, Porsche 928, Subaru Forester, and Volkswagen Passat.

Product Details and Specifications

This serpentine belt features a 4-rib design with a K cross section, providing optimal grip and flexibility for accessory drive systems. The belt's EPDM material offers resistance to heat, ozone, and wear, while the polyester cord enhances tensile strength and durability. With an effective length of 33.75 inches (857 mm) and an outside circumference of 34.25 inches (871 mm), the K040337 fits specific engine configurations requiring these dimensions. The belt's top width is available in both 0.56 inch and 14 mm measurements, accommodating different measurement standards.

Common Applications and Issues Addressed

• Replacement for worn or cracked serpentine belts in Audi A4 and A4 Quattro models
• Restores proper accessory drive function in Porsche 928 vehicles
• Prevents slipping and noise issues in Subaru Forester belt systems
• Ensures reliable power transmission in Volkswagen Passat accessory drives
• Addresses belt degradation caused by heat and environmental exposure

Installation Notes and Tips

When installing the Gates Premium OE Micro-V Belt K040337, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear before installation to prevent premature belt failure. Use proper tensioning tools to achieve manufacturer-recommended belt tension. Verify that the belt sits evenly on all pulleys and that the rib count matches the original belt specifications.

Quality Assurance and Warranty

Gates Premium OE Micro-V Belts are manufactured to meet or exceed original equipment standards, providing consistent performance and durability. The use of EPDM and polyester materials ensures resistance to heat, ozone, and wear. This product carries Gates’ standard warranty coverage, which protects against defects in material and workmanship under normal use conditions.