PYHAUTO Coolant Reservoir Tank for 2014-2019 Silverado 1500 Tahoe Sierra - Direct-Fit OEM Replacement with Cap and 1-Year Warranty

Replacement coolant reservoir tank engineered to be a direct-fit OEM-style swap for 2014–2019 Chevy/GMC full-size trucks and SUVs.

This PYHAUTO coolant expansion tank (fits part numbers 22856231, 603-973 and equivalents) restores proper coolant overflow capacity and the factory appearance under the hood. Built to match the original tank’s shape and mounting points, it simplifies installation while using durable materials designed for long-term service. The package includes the tank and cap, and is covered by a one-year warranty for added peace of mind.

Will this tank fit my Silverado 1500, Tahoe, or Sierra?

Yes — this reservoir is designed to match the factory dimensions and attachment points used on many 2014–2019 GM full-size models. Before ordering, compare the part numbers or your current tank’s mounting layout to ensure compatibility.

• Compatible part numbers: 22856231, 603-973, 84368362, 13502354, 615343803586
• Commonly fits: Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon, Escalade
• Direct-fit OEM-style shape and mounting for straightforward replacement

How hard is it to replace the coolant reservoir tank?

Installation is typically quick for someone with basic hand tools and light mechanical experience. The tank uses the original mounting points and hoses, so removal and reinstallation follow the factory layout without modifications.

• No cutting or welding — bolts and hose clamps reuse factory locations
• Standard tools required: ratchet set, pliers, coolant catch pan
• Expected time: usually 30–60 minutes depending on access and experience

What materials and quality can I expect from this PYHAUTO part?

The tank is molded from materials selected to resist heat, vibration and coolant exposure. PYHAUTO engineers the component to mirror OEM tolerances for fit and function so it performs like the original part while remaining cost-effective.

• Durable plastic construction formulated for engine-bay conditions
• Includes cap designed to reseal and maintain correct overflow pressure
• One-year warranty for parts reliability and customer support

What should I check after installing the new reservoir?

After installation, inspect for tight hose connections and correct mounting; then run the engine to normal operating temperature and recheck fluid level and for leaks. Proper bleeding of trapped air may be necessary to restore the cooling system’s normal circulation.

• Verify hose clamps are snug and the cap seats properly
• Top off coolant to the recommended level and secure cap
• Watch for leaks for the first drive cycle and recheck levels after cool-down

Who is this for: Drivers and mechanics who need a reliable, budget-conscious replacement coolant reservoir for 2014–2019 Chevy and GMC full-size trucks and SUVs. It’s ideal for owners restoring factory fit and appearance or replacing an aged, cracked, or leaking tank without aftermarket modifications. If you want a straightforward, OEM-style swap backed by a one-year warranty, this PYHAUTO reservoir tank is designed to meet those needs.