DC 12V Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM

What is DC 12V Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM?

The DC 12V Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM is a direct-fit replacement component engineered to maintain proper vacuum pressure for power brake systems in vehicles that lack sufficient engine-generated vacuum. Commonly used in GM, Volvo XC90, GMC K1500, Chevrolet, Buick, Cadillac, and select Subaru Forester models, this electric pump ensures consistent brake assist, especially in engines modified with efficient or turbocharged setups that produce lower vacuum. Built to OEM specifications, it operates on a 12-volt DC power supply and is ideal for restoring factory-level braking safety and responsiveness.

Key features

• Rated Voltage — Operates on standard DC 12V for reliable vehicle integration.
• OEM Compatibility — Matches OEM numbers including 20804130, 20939309, and 31317530.
• Mounting Insulators Included — Reduces vibration and noise during operation.
• Direct Fit Replacement — Installs easily without modifications on compatible GM and related vehicles.
• Brand New Condition — 100% new build ensures longevity and performance.
• Wide Application — Fits select GM, Volvo XC90, Subaru Forester (15-16), and other compatible models.
• One-Year Warranty — Backed by a 12-month manufacturer warranty for confidence in reliability.

Who is DC 12V Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM for?

This auxiliary vacuum pump serves DIY mechanics, auto repair shops, and owners of GM-family vehicles experiencing soft brake pedals or brake assist failure due to low engine vacuum. It's especially valuable for trucks, SUVs, and older vehicles where vacuum degradation affects braking safety. Enthusiasts with engine swaps or performance upgrades that reduce vacuum output also benefit from this reliable electric solution.

How does DC 12V Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM compare?

Compared to standard mechanical vacuum pumps driven by the engine, this electric version delivers consistent vacuum regardless of engine load or RPM, making it superior in modified or high-efficiency engines. It outperforms generic aftermarket pumps by matching OEM fit and function, with included insulators and verified compatibility. While not a universal pump, its targeted design ensures better reliability than non-OEM-specific alternatives, especially in GM and Volvo applications where brake safety is critical.