C-Tzu Brake Vacuum Pump for GM Trucks & SUVs 2014-2020 — 4.3L/5.3L/6.2L Direct-Fit Aluminum

The C-Tzu 904-861 brake vacuum pump is a direct-fit replacement pump engineered to restore vacuum assist for brakes on compatible GM V6 and V8 trucks and SUVs from 2014–2020.

This replacement vacuum pump is built to match OE fit and function for a range of Cadillac, Chevrolet, and GMC vehicles that use engine-mounted vacuum assist systems. Constructed from durable aluminum and supplied to meet multiple OEM part numbers, the pump is intended as a straightforward swap to recover brake booster vacuum without custom modifications. The unit ships with a one-year quality warranty and technical support from C-Tzu.

Which vehicles and engines will this pump fit?

The C-Tzu 904-861 is designed for several GM full-size SUVs and pickups produced between 2014 and 2020. It targets common V6 and V8 engines (4.3L, 5.3L, 6.2L) found across Cadillac Escalade, Chevrolet Suburban/Tahoe/Silverado, and GMC Sierra/Yukon model lines.

• Cadillac Escalade (2015–2020)
• Chevrolet Tahoe, Suburban 1500, Silverado (2014–2020)
• GMC Sierra 1500, Sierra Denali, Yukon (2014–2020)
• Compatible with engines: 4.3L, 5.3L, 6.2L

How does this unit match OEM specifications and part numbers?

C-Tzu engineered this pump to cross-reference several genuine OEM numbers so installers can identify it as a proper replacement. The housing, mounting points, and vacuum outlet positions are produced to align with factory geometry for a direct-fit installation.

• Cross-compatible with OEM numbers: 12654013, 12659655, 12660004, 12662552, 12669488, 12696313
• Aluminum construction and factory-style ports for correct connection
• Designed for plug-and-play replacement without modifying brackets or lines

What performance and durability features should I expect?

The pump housing is cast from corrosion-resistant aluminum and assembled to deliver consistent vacuum output under normal operating conditions. That results in reliable brake assist and helps maintain pedal feel similar to the original component.

• Aluminum body for reduced corrosion and long service life
• Engineered to provide steady vacuum supply for brake booster systems
• Quality control and testing to meet functional expectations for road use

How difficult is installation, and what comes with the purchase?

Installation is intended to be straightforward because the pump follows OE layout and mounting locations. A professional technician can complete the swap quickly, and well-equipped DIYers familiar with brake and engine components will also find the job manageable.

• Direct-fit design reduces need for special tools or modifications
• Replace using existing gasket, bolts, and vacuum hose routing (reuse OE fasteners where appropriate)
• Includes one-year quality warranty and access to C-Tzu customer support

Who is this for: This C-Tzu 904-861 vacuum pump is aimed at vehicle owners, fleet managers, and independent shops needing a reliable, cost-effective replacement for failing vacuum assist pumps on compatible 2014–2020 GM trucks and SUVs. It’s also suitable for experienced DIY mechanics who want an OE-pattern pump that matches factory part numbers and fits without lengthy modifications.