GDUKOP 603-054 Engine Coolant Expansion Reservoir Tank with Cap | Chevy Silverado, GMC Sierra, Tahoe, Yukon, Escalade (2007-2013)

Overview

The GDUKOP 603-054 Engine Coolant Expansion Reservoir Tank with Cap is a purpose-built replacement part designed to fit a range of GM vehicles from 2007 to 2014, including Chevrolet Silverado, Tahoe, Suburban, Avalanche, and GMC Sierra/Yukon models. Crafted to endure heat and road vibrations, this tank helps maintain proper coolant management as the engine warms and cools, contributing to steadier heating system performance and a calmer engine bay under daily driving conditions.

Why it matters in your daily drive

Coolant reservoirs play a key role in managing expansion and contraction of fluids during engine cycles. This unit is designed to store coolant displaced by the engine and return it to the radiator as needed, helping to keep the cooling loop balanced and ready for action when you need it most. The included cap provides a secure seal to minimize leaks and evaporation, helping you avoid intermittent top-offs and sudden temperature spikes on busy roads or climbing grades.

Key features and benefits

• Durable PA plastic construction tested for heat and vibration resistance, designed for long-term reliability in demanding engines.
• Integrated cap ensures a tight seal, supporting consistent coolant containment and reducing the chance of leaks.
• Compact reservoir design tailored to fit the GM engine bays of listed models, enabling straightforward installation.
• Designed to be compatible with multiple OE numbers, offering flexibility for replacement or repair scenarios.
• One-year unlimited-mileage guarantee and helpful after-sales support with a 48-hour response window.

Fitment and reference

• Cadillac Escalade / Escalade ESV: 2007–2014
• Chevrolet Silverado 1500: 2007–2013
• Chevrolet Silverado 2500/3500: 2010–2013
• Chevrolet Suburban: 2007–2013, 2016 (1500/2500)
• Tahoe: 2007–2014
• Avalanche Cheyenne: 2007–2013
• GMC Sierra 1500: 2007–2013; Sierra 2500/3500: 2007–2018
• GMC Yukon / Yukon XL: 2007–2014

What you get and how it works

This expansion reservoir functions as the coolant storage for the cooling system. When the engine heats, the coolant expands and the reservoir accommodates the rise in pressure. As the engine cools, coolant is drawn back into the radiator, helping to maintain proper flow and operation without creating excess stress on the system. A well-sealed cap minimizes evaporative losses and helps prolong intervals between top-offs.

Quality and support

GDUKOP backs this part with a one-year unlimited-mileage guarantee. If you have questions, our team aims to respond within 48 hours, offering guidance to help you complete a smooth replacement and get back on the road with confidence.