Gates K050520 Serpentine Belt - Alternator and Power Steering

Gates Premium OE Micro-V Belt K050520

The Gates Premium OE Micro-V Belt K050520 is a precision-fit serpentine belt built for import and domestic vehicles that rely on stable accessory drive performance. It matches OE size, construction, and materials to support consistent operation in applications such as Pontiac Sunbird, Pontiac Grand Am, and Pontiac LeMans accessory drive systems.

Key Features

• Premium OE Micro-V belt from Gates
• Part number: K050520
• 5-rib automotive V-ribbed belt, standard profile
• EPDM belt material for durability in accessory drive service
• Polyester cord material for strength and dimensional stability
• OE performance rating for factory-style fit and function
• Effective length: 52.1 in. (1323 mm)
• Outside circumference: 52.662 in. (1338 mm)
• Top width: 0.667 in. (17 mm)

Product Details

Gates Premium OE Micro-V belts are engineered to match original equipment dimensions and construction standards, helping maintain proper belt tracking and accessory drive operation. The K050520 uses EPDM belt material and polyester cord reinforcement to deliver the fit and material specification expected in OE-style replacement service. This belt is listed for alternator and power steering applications on select Pontiac Sunbird, Pontiac Grand Am, Pontiac LeMans, Pontiac Optima, Buick Skyhawk, and Oldsmobile Firenza models.

This part cross-references Bando 5PK1320 and Continental 4050520 for the same application.

Common Problems This Belt Can Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or visible wear on the belt surface
• Loss of accessory drive performance at the alternator or power steering system
• Belt tracking issues caused by incorrect OE-style dimensions
• Replacement needs during routine accessory drive service

Installation Notes and Tips

• Verify the belt routing and rib count before installation.
• Inspect pulleys, tensioners, and idlers for wear before installing a new belt.
• Confirm the application by year, make, model, and accessory position.
• Fits 1987-1994 Pontiac Sunbird, Alternator and Power Steering.
• Fits 1987-1989 Pontiac Grand Am, Alternator and Power Steering.
• Fits 1989-1990 Pontiac LeMans, Alternator and Power Steering.
• Fits 1988-1990 Pontiac Optima, Alternator and Power Steering.
• Fits 1987-1988 Buick Skyhawk, N/A.
• Fits 1987-1988 Oldsmobile Firenza, N/A.

Quality Assurance

Gates builds the Premium OE Micro-V Belt line to OE size, construction, and material standards for factory-style replacement performance. The K050520 is specified as an OE performance belt for direct-fit service in the listed applications.