Roadmax 6K637AP Serpentine Belt

Roadmax 6K637AP Serpentine Belt Overview

The Roadmax 6K637AP is an automotive V-ribbed belt built for drivers who want a practical replacement belt without stepping up to a premium performance line. Made with EPDM and polyester cord reinforcement, it is sized for accessory drive applications that require a 6-rib, K-section serpentine belt.

Roadmax’s Automotive V-Ribbed Belt (Standard) line focuses on dependable everyday service for common passenger and light truck applications. The 6K637AP follows that approach with standard construction and OE-style dimensions for direct replacement use in listed vehicles.

Key Features

• EPDM rubber construction for modern accessory drive belt service
• Polyester cord material for reinforcement and dimensional stability
• 6-rib design for compatible serpentine drive systems
• Top width: 20 mm (.807 in.)
• Effective length: 1620 mm (63.78 in.)
• Outside circumference: 1634 mm (64.342 in.)
• Cross section designation: K
• Roadmax part number: 6K637AP

Detailed Description

Roadmax 6K637AP is a standard automotive serpentine belt sized for accessory drive belt systems that call for a 6-rib, K-profile belt. Its EPDM construction is suited to routine engine-bay service, while the polyester cord helps maintain belt shape and tension consistency. This part cross-references Gates K060637 and Continental 6PK1623 for the same application. If you are replacing a worn belt on a Chevrolet S10, GMC Sonoma, or Isuzu Hombre, this part number should be checked against the vehicle’s exact belt routing and engine configuration before installation. The Roadmax 6K637AP is also listed for Subaru B9 Tribeca and Volkswagen Passat applications, along with Chevrolet Camaro and Pontiac Firebird fitments shown below.

Vehicle Fitment

• Fits 2006-2007 Subaru B9 Tribeca, N/A
• Fits 2006-2007 Volkswagen Passat, N/A
• Fits 1998-2003 Chevrolet S10, N/A; W/O A.C.
• Fits 1998-2003 GMC Sonoma, N/A; W/O A.C.
• Fits 1998-2000 Isuzu Hombre, N/A; W/O A.C.
• Fits 1993-1994 Chevrolet Camaro, N/A
• Fits 1993-1994 Pontiac Firebird, N/A

Common Replacement Reasons

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or visible belt wear
• Loss of accessory drive performance from belt slip
• Incorrect belt length after prior service work
• Need for a direct replacement belt for listed Chevrolet S10, GMC Sonoma, or Volkswagen Passat applications

Installation Notes and Tips

Verify the belt routing diagram and confirm the engine configuration before installation. Match the belt length, rib count, and cross section to the original application, especially on vehicles with and without air conditioning. Inspect pulleys, tensioners, and idlers for wear before installing the new belt so the replacement can track correctly.

Quality Assurance

Roadmax positions this belt as a standard replacement option for budget-conscious buyers who still want a quality accessory drive belt. The EPDM construction and reinforced cord design support everyday service in the applications listed above.