EVIL ENERGY Engine Coolant Reservoir Overflow Tank, 603-102, 15808716, 15778387, Compatible with Chevrolet Avalanche 2500 GMC Sierra 1500 Hummer H2
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03COOLANT5Discount applies at checkout — not on the Amazon listing page. That's normal.
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Why This Deal Is Worth It
If your older truck or SUV is leaving those dreaded neon-colored puddles in the driveway, your coolant reservoir has likely cracked from years of heat cycles. I have learned the hard way that cheap plastic alternatives turn brittle after one summer, forcing you to do the job twice. The Evil Energy tank is a better bet because it matches the original equipment specifications, meaning the hose connections actually seat correctly and the plastic is dense enough to handle pressurized cooling systems without splitting. It is the kind of part that lets you fix the leak once and get back to your weekend schedule. This is for the parent driving an aging Chevy or GMC workhorse who cannot afford a breakdown during school pickup or soccer practice. If your engine is running hot or you are constantly topping off fluids, this reservoir will stop the slow, invisible loss of coolant that leads to major engine damage. Fixing this yourself saves you about three months of piano lessons in mechanic labor costs. One honest note: this tank does not always come with a new cap. Check your old one for cracks, and if it looks worn, buy a new cap separately. You do not want to install a fresh tank only to have a faulty seal ruin your afternoon.
Thomas Brooks
Premium Durability & BIFL Expert
About this item
- Reference Number: 603-102, 15075118, 15203949, 15778386, 15778387, 15808715, 15808716, 19353731.
- Fitment: Compatible with 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Avalanche 2500, 1999-2006 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, 2001-2003 Chevrolet Silverado 1500 HD, 2005-2006 Chevrolet Silverado 1500 HD, 2007 Chevrolet Silverado 1500 HD Classic, 1999-2004 Chevrolet Silverado 2500, 2001-2006 Chevrolet Silverado 2500 HD, 2000-2006 GMC Yukon XL 2500.
- Fitment: Compatible with 2002-2006 Cadillac Escalade, 2002-2006 Cadillac Escalade ESV, 2002-2006 Cadillac Escalade EXT, 1999-2006 GMC Sierra 1500, 2007 GMC Sierra 1500 Classic, 2001-2003 GMC Sierra 1500 HD, 2005-2006 GMC Sierra 1500 HD, 2007 GMC Sierra 1500 HD Classic, 1999-2004 GMC Sierra 2500, 2001-2006 GMC Sierra 2500 HD, 2007 GMC Sierra 2500 HD Classic, 2001-2006 GMC Sierra 3500, 2007 GMC Sierra 3500 Classic, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1500.
- Fitment: Compatible with 2007 Chevrolet Silverado 2500 HD Classic, 2001-2006 Chevrolet Silverado 3500, 2007 Chevrolet Silverado 3500 Classic, 2000-2006 Chevrolet Suburban 1500, 2000-2006 Chevrolet Suburban 2500, 2000-2006 Chevrolet Tahoe, 2001-2006 GMC Sierra 3500, 2007 GMC Sierra 3500 Classic, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1500, 2000-2006 GMC Yukon XL 2500.
- Easy installation: Direct replacement for original part, easy for installation without any modification.
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