Gates K080638HD Serpentine Belt

Heavy-Duty Micro-V Belt for Fleet Use

The Gates FleetRunner Heavy Duty Micro-V Belt K080638HD is built for accessory drive systems that see demanding service and long operating hours. It uses EPDM construction with a distinct green overcord for added durability, flexibility, and belt stability in heavy-duty applications.

Compatible With 1990-1993 Dodge D250, N/A; 1990-1993 Dodge D350, N/A; 1990-1993 Dodge W250, N/A; and 1990-1993 Dodge W350, N/A, this heavy-duty serpentine belt is a direct fit for select Dodge diesel truck applications without air conditioning and with intercooler.

Key Features

• Gates FleetRunner Heavy Duty Micro-V Belt line for demanding fleet service
• Part number K080638HD
• 8-rib automotive V-ribbed belt design
• EPDM belt material for improved wear resistance and long service life
• Polyester cord construction for strength and dimensional stability
• OE Improved rating for a stronger replacement standard
• Effective length: 63.8 in. (1621 mm)
• Outside circumference: 64.375 in. (1634 mm)
• Top width: 1.087 in. (28 mm)

Product Details

The FleetRunner Heavy Duty Micro-V Belt line is engineered for heavy-duty drives where belt durability and consistent operation matter. Gates uses patented EPDM construction and a green overcord to improve flexibility, stability, and service life under load. This makes the K080638HD a practical choice for fleet maintenance and for owners looking for a heavy-duty serpentine belt for select Dodge D250, D350, W250, and W350 diesel trucks.

This part cross-references Dayco 5080635 for the same application.

Common Problems This Belt Can Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or fraying on the belt surface
• Loss of belt tension stability in heavy-duty service
• Accessory drive slip under sustained engine load
• Premature belt replacement intervals in fleet use

Installation Notes and Tips

Verify belt routing against the vehicle’s accessory drive layout before installation. Confirm the application matches 1990-1993 Dodge D250, D350, W250, or W350 models with no A/C and an intercooler. Inspect pulleys, tensioner condition, and accessory alignment before fitting the new belt to help prevent uneven wear.

Quality Assurance

Gates designs FleetRunner Heavy Duty Micro-V belts for durability, flexibility, and stable performance in heavy-duty service. The K080638HD is an OE Improved replacement built to meet the demands of fleet and diesel truck accessory drive systems.