Gates K070508EST Serpentine Belt

Gates E-Start Micro-V Belt for Stop-Start Systems

The Gates K070508EST is an Automotive V-Ribbed Belt (E-Start) built for belt-driven starter generator stop-start systems. It uses EPDM belt material with aramid cord reinforcement to support stable operation, reduced noise, and improved fuel efficiency in the applications it was engineered for.

Compatible With select Buick LaCrosse and Buick Regal models, as well as Chevrolet Impala and Chevrolet Malibu applications listed below, this Gates serpentine belt is an OE Exact replacement for the specified fitments. The K070508EST is part of Gates’ E-Start Micro-V belt line, which focuses on modern accessory drive systems that demand consistent performance in stop-start operation.

• Part number: K070508EST
• Automotive V-Ribbed Belt (E-Start) for stop-start accessory drive systems
• EPDM belt construction for durability in demanding engine-bay conditions
• Aramid cord material for strength and dimensional stability
• 7-rib design with K section profile
• OE Exact rating for listed applications
• Top width: 24 mm (.947 in)
• Effective length: 1290 mm (50.79 in)
• Outside circumference: 1305 mm (51.36 in)

Detailed Product Overview

Gates K070508EST is a serpentine belt engineered for vehicles equipped with E-Start or stop-start belt drive systems. Its 7-rib Micro-V profile, EPDM construction, and aramid reinforcement are specified to maintain belt tracking and consistent drive performance under repeated start-stop cycling. For buyers searching for a 7PK1290-style belt or a direct OE Exact replacement, this part number provides a precise match for the listed applications.

This part cross-references Bando 7PK1290 for the same application. It also cross-references Dayco A070508 for the same application.

Vehicle Fitment

• Fits 2012-2016 Buick LaCrosse, N/A
• Fits 2012-2016 Buick Regal, N/A
• Fits 2014 Chevrolet Impala, N/A
• Fits 2013-2014 Chevrolet Malibu, N/A

Common Uses

• Restoring proper accessory drive operation when the original belt is worn or cracked
• Addressing belt noise caused by glazing, hardening, or rib wear
• Replacing a stretched belt that no longer maintains correct tension
• Supporting stop-start system performance in listed Buick and Chevrolet applications
• Correcting charging, alternator, or accessory drive issues tied to belt condition

Installation Notes and Tips

Verify the belt section, rib count, and effective length before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life and affect tracking. Confirm the vehicle’s accessory drive layout matches the listed fitment for Buick LaCrosse, Buick Regal, Chevrolet Impala, or Chevrolet Malibu before ordering the K070508EST.

Quality Assurance

Gates manufactures the E-Start Micro-V belt line for modern starter-generator and stop-start belt drive systems, with OE Exact fitment for the applications listed here. The K070508EST is built to the stated dimensional and material specifications for direct replacement use.