Radiator Surge Tank Cap Easy Install Coolant Cap For Cars Car Cooling Water Tank Cover Radiator Coolant Reservoir Cap Compatible With GMC Chevy Buick Pontiac Replacement For OEM 15075118 RC98

Radiator Coolant Cap for GM Vehicles - OEM Replacement ✔️ Single-cap replacement fits many GM models with ABS body

This radiator surge tank cap is a direct replacement part for GM cooling systems. It seals the coolant reservoir opening to prevent antifreeze leaks and keep dust and debris out, helping maintain steady engine cooling during daily driving. Compatible with Chevrolet, GMC, Buick, Pontiac, Saturn models listed in the compatibility section.

✅ Replacement part numbers: 15075118, RC98, 15066786, 22671020
✅ Material: ABS plastic with wear resistance, high-temperature and corrosion resistance
✅ Size/Weight: 6.4 x 3.4 x 2.8 cm, 100 g; Color: Black
✅ Easy to install: hexagonal gear edge, hand-tighten, no tools needed
✅ Compatibility: fits a wide range of GM models (see compatibility models)

💡 What is a radiator cap and why does it matter for engine cooling?

- Helps maintain proper system pressure to prevent overheating during normal driving - Keeps dust and debris out of the coolant reservoir and radiator - Durable ABS construction resists heat and chemicals for longer life - Quick, tool-free hand-tighten installation makes replacing simple