Coolant Reservoir Recovery Tank For Chevy Silverado GMC Sierra 1500 15808715
β Upgraded Aluminum Coolant Overflow Tank – OEM #15203949 Fitment
For Chevy Silverado, GMC Sierra & Hummer H2 (2003–2009)
Upgrade your vehicle’s cooling system with this high-performance aluminum coolant overflow tank, designed as a direct replacement for the original plastic reservoir (OEM #15203949). Built to last, this premium upgrade offers superior durability, heat resistance, and corrosion protection.
π§ Key Features:
- β Aluminum Construction: Stronger & more durable than OEM plastic – resists cracking and warping over time.
- β Direct Fit Replacement: Perfect fit for 2003–2009 Chevy Silverado, GMC Sierra, and Hummer H2 models.
- β Includes Pressure Cap: Factory-style cap with proper pressure rating for safe operation.
- β Integrated Mounting Bracket: Easy installation – no modifications needed.
- β Improved Cooling Performance: Better heat dissipation helps prevent overheating under heavy loads or extreme conditions.
- β Universal Hose Fittings: Compatible with standard radiator and engine hoses.
π οΈ Fits These Models:
- Chevrolet Silverado (2003–2006)
- GMC Sierra (2003–2006)
- Hummer H2 (2003–2009)
(Compatible with 5.3L, 6.0L, V8 engines)
π¦ Package Includes:
- 1 x Aluminum Coolant Overflow TankοΌnatural aluminum οΌ
- 1 x Pressure Cap (Installed)
β οΈ Note: No additional tools or parts required. Reuse original hoses and clamps.
π‘ Why Upgrade?
Replace your old, brittle plastic reservoir with this rugged aluminum alternative that looks great and performs better. Ideal for off-road use, towing, or daily driving in hot climates.
β
Easy DIY Installation – Simply remove the old tank and bolt on the new one!
π§ No Cutting or Modifications Needed
π¦ Free Shipping | 100% Satisfaction Guarantee | Lifetime Durability
π Click “Add to Cart” Now and Keep Your Engine Cool & Reliable!
π Search Keywords (for eBay SEO):
coolant overflow tank, aluminum coolant reservoir, Chevy Silverado coolant tank, GMC Sierra expansion tank, Hummer H2 coolant tank, OEM 15203949, upgrade coolant reservoir, heavy duty coolant tank
2.Items will be shipped within 1-3 business day when we received payment.
3.Delivery time depends on destination and other factors;
Directly manufacturer supply.
Reasonable price.
Customer centric policy.
We offer a wide range of all aluminum cooling solutions for trucks, classics, motorcyles, forklifts, powersports and more. We pride ourselves with quality products and excellent customer service. All products are TIG welded using aircraft grade aluminum, and tested rigorously before manufacturing. We trust our products.
If you have any item quality problems pls leaving a message within 48 hours with the pictures of problem details.
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| Color | natural aluminum |
|---|---|
| Fitment Type | Performance/Custom |
| Material | Alloy Aluminum |
| Brand | apollo*racing |
| Year | 1999-2007 |
| Type | apollo*racing Coolant Reservoir Tank |
| Features | High quality alloy aluminum construction. |
| Manufacturer Part Number | 15203949, 15778386, 15808715, 603-102 |
| Interchange Part Number | 603-102, 15203949 |
| Items Included | With Cap, with sight glass |
| OE/OEM Part Number | 15203949, 603-102, 15778386, 15808715, 15066786 |
| Manufacturer Warranty | 1 Year |
| Models for Hummer | H2 |
| Compatible Makes | Cadillac, Chevrolet, GMC, Hummer |
| Notes | without Sensor |
