BRTEC Engine Coolant Overflow Recovery Reservoir Tank with Sensor & 15 PSI Cap — Direct-Fit for 1999–2007 GM Trucks & SUVs

BRTEC's engine coolant overflow recovery reservoir tank is a direct-fit replacement reservoir with pre-installed cap and sensor designed to restore proper coolant containment and level monitoring in compatible GM trucks and SUVs.

This replacement coolant overflow tank (also called a recovery reservoir) is molded from heat-resistant PA plastic and supplied with a 15 PSI cap and integrated sensor for immediate installation. It’s manufactured to match OE mounting points and hose locations so you can swap it in without cutting or modifying factory hardware. The tank addresses coolant expansion and returns excess fluid to the cooling system while giving you reliable sensor feedback to the vehicle’s gauge or warning lights.

Which vehicles will this BRTEC reservoir fit?

This reservoir is built to fit a range of GM full-size trucks and SUVs from the late 1990s through the mid-2000s. Confirm part reference numbers or compare the mounting hole and hose positions to your existing tank before purchase.

• Chevrolet: Silverado 1500/2500/3500, Suburban, Tahoe, Avalanche models listed for 1999–2006/2007 as specified
• GMC: Sierra 1500/2500/3500, Yukon and Yukon XL for model years 1999–2006
• Cadillac and Hummer: Escalade (2002–2006) and H2 (2003–2009) compatibility noted

How does this tank help with cooling system performance?

As the engine heats, coolant expands and flows into the recovery tank; when the system cools, it returns to the radiator. This BRTEC tank provides secure storage and prevents coolant loss from overflow, helping the system maintain proper fluid levels and reducing air intake into the cooling circuit.

• Precision molding reduces leak and crack risks under thermal stress
• Included sensor monitors level to alert driver or ECU of low fluid
• Pre-installed 15 PSI cap controls system pressure and release

What are the materials and build specs to expect?

The unit is made of durable PA (polyamide) plastic chosen for its heat and vibration resistance. It uses OE-style mounting locations and a single mounting hole to match factory brackets, and the cap is rated to 15 PSI to align with original cooling system parameters.

• Material: PA plastic for long-term thermal durability
• Mounting: OE-style single mounting hole for direct replacement
• Pressure: Cap maximum rating 15 PSI to maintain correct system pressure

Is installation difficult and what’s included?

Installation is straightforward for anyone comfortable working in an engine bay: remove the old tank, unhook hoses and sensor connector, transfer or replace clamps if needed, then bolt in the new BRTEC unit. The product ships with the coolant cap and sensor pre-installed, eliminating extra purchases and reducing install steps.

• Comes with pre-installed sensor and 15 PSI cap
• OE-style fitment eliminates trimming or drilling
• Compatible with listed part reference numbers for easy cross-reference

Who is this for: Owners and technicians working on late-1990s to mid-2000s GM full-size trucks and SUVs who need a reliable, direct-fit replacement coolant recovery tank with an included sensor and cap. It’s ideal for routine cooling system maintenance, restoring a leaking or cracked reservoir, or upgrading a missing or damaged tank to factory-style specifications.