AULINK Vacuum Pump for GM 2.0L & 2.5L Engines — Direct Replacement for Chevy Impala/Malibu, Leak-Tested, Includes Hardware

The AULINK 12686657 vacuum pump is a direct-replacement engine vacuum pump engineered to restore reliable vacuum performance on GM 2.0L and 2.5L vehicles.

This high-quality replacement pump fits a wide range of General Motors models and is built to meet rigorous manufacturing standards. Produced in TS16949-certified facilities, each unit is leak- and function-tested before leaving the factory. The pump ships with the necessary installation hardware and is backed by a two-year or 50,000 km limited warranty, making it a practical repair choice for owners and professional technicians alike.

Which vehicles and engines is this pump compatible with?

The AULINK pump covers many GM cars and crossovers equipped with 2.0L or 2.5L engines. Fitment includes model-year ranges for popular models and several OEM part number equivalents for verification.

• Chevrolet Impala: 2014–2019
• Chevrolet Malibu: 2013–2015
• Also fits: Camaro, Blazer, Colorado, Traverse (2019–2020 ranges)
• GMC Canyon: 2015–2020; Acadia: 2017–2020
• Cadillac CT6: 2016–2018; ATS: 2013–2015
• Buick Envision: 2016–2019 (2.0L), 2020 (2.5L); Regal/LaCrosse specified years
• Cross-check OEM numbers: 12686657, 12654111, 12658172, 12660670, 12662773, 12638180

How does this pump meet quality and performance expectations?

Manufactured under TS16949 quality controls, the pump undergoes comprehensive testing to ensure reliable operation. Leak and functional checks confirm it meets performance criteria before shipment.

• Produced in TS16949-certified facilities for consistent quality
• 100% functional and leakage-tested units
• Supplied with installation hardware to match factory fitment
• Warranty: 2 years or 50,000 km for added confidence

What comes in the box and how easy is installation?

The pump is delivered as a complete replacement kit that includes the pump and necessary fittings for a direct swap in compatible vehicles. Designed to match factory mounting points, it simplifies installation for mechanics and experienced DIYers.

• Complete assembly with required seals and mounting components
• Factory-style connections for straightforward replacement
• Recommended: basic hand tools and service manual torque specs
• Professional installation advised if unfamiliar with vacuum-system routing

When should I replace my vacuum pump?

Consider replacement when you notice vacuum-related drivability symptoms or when the vehicle indicates a fault tied to vacuum systems. Preventive replacement is common during major engine work or when pump wear is suspected.

• Signs: reduced brake assist feel, check-engine lights, or vacuum leaks
• Inspect during intake or accessory repairs for proactive maintenance
• OEM-equivalent part numbers help ensure correct selection

Who is this for: The AULINK 12686657 vacuum pump is suited for owners of affected Chevrolet, GMC, Cadillac, and Buick models seeking a factory-style replacement, and for independent shops handling GM 2.0L/2.5L engine repairs. It's also appropriate for technicians who need a tested, warranted pump with included installation hardware to reduce downtime and ensure a secure fit.