Dayco A070508 Serpentine Belt - Main Drive

Dayco A070508 Serpentine Belt Overview

The Dayco A070508 serpentine belt is a 7-rib accessory drive belt built for main drive applications on select Buick, Chevrolet, and Volkswagen vehicles. Made from EPDM with aramid reinforcement, it is specified for consistent belt tracking and durable operation across a wide temperature range.

Compatible With 2012-2016 Buick LaCrosse and 2012-2016 Buick Regal main drive applications, as well as 2014 Chevrolet Impala and 2013-2014 Chevrolet Malibu main drive setups. It also fits select Volkswagen models, including the 1999 Volkswagen Jetta, 1994-1996 Volkswagen Jetta, 1993-1997 Volkswagen Passat, 1995-1996 Volkswagen Golf, and 1992-1994 Volkswagen Corrado, all in main drive use without A.C.

Key Features

• Part number: A070508
• 7-rib K-section serpentine belt for accessory drive systems
• EPDM construction with aramid reinforcement for added tensile strength
• Black belt with straight rib profile
• Top width: 0.96 in.
• Effective length: 50.79 in. (1290.07 mm)
• Outside circumference: 51.32 in. (1303.53 mm)
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco A070508 is a serpentine belt for main drive accessory systems where correct rib count, length, and profile are critical. The EPDM rubber compound is paired with aramid reinforcement to support stable belt performance under heat, cold, and continuous engine operation. This belt measures 0.96 inches wide with a 7-rib straight rib design, making it a direct-spec replacement for the listed Buick, Chevrolet, and Volkswagen applications. If you are replacing a worn serpentine belt on a Buick LaCrosse, Buick Regal, Chevrolet Impala, Chevrolet Malibu, or select Volkswagen models, the A070508 provides the specified fit and dimensions for those vehicles.

This part number, A070508, is commonly searched by drivers needing a replacement serpentine belt for main drive service on compatible Buick, Chevrolet, and Volkswagen applications.

What This Belt Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or fraying on the existing serpentine belt
• Loss of proper belt tension or tracking on the drive system
• Accessory drive noise caused by belt wear
• Replacement needs during routine maintenance on high-mileage vehicles

Installation Notes and Tips

Verify rib count, effective length, and outside circumference before installation. This belt is listed for main drive use, and the Volkswagen applications shown are for vehicles without A.C. Inspect pulleys, tensioners, and idlers for wear before installing the new belt so the replacement can run true and maintain proper contact across the ribs. Confirm vehicle-specific routing against the underhood belt diagram.

Quality Assurance

Dayco manufactures this serpentine belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid reinforcement selected for demanding accessory drive service. The part is engineered to match the listed OE-style fitment and dimensional requirements for the specified applications.