Hold cooling-system pressure and help keep coolant at its proper boiling point with the Gates Radiator Cap 31523, a Standard Vented Cap that seals the radiator filler neck and manages pressure as the engine heats and cools. It's a direct-fit replacement for many vehicles, among them the 1994-1998 Dodge Ram 1500 3.9L / 5.2L / 5.9L, 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 6.2L / 7.4L and 1988-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L / 6.2L; see the "Vehicles it fits" section for the full list.
This OE Performance grade cap is engineered for precise pressure control, with an application-specific vent valve that releases excess pressure and a vacuum-relief valve that opens on cooldown to relieve vacuum in the system.
Coolant recovery system: optional. Country of origin: China.
What pressure is this radiator cap rated for?
It is a Standard Vented Cap rated at 16 psi, engineered for precise pressure control with an application-specific vent valve and a vacuum-relief valve.
How does a radiator cap work?
It seals the filler neck and holds cooling-system pressure to raise the coolant's boiling point. Its vent valve releases excess pressure, and the vacuum-relief valve opens on cooldown to draw coolant back.
What is this cap made of?
Gates builds these caps from corrosion-resistant, heavy-gauge metal or high-quality plastic, depending on the application, for long service life.
Does it require any adjustment to install?
No. This cap requires no adjustment for installation — it seats onto the filler neck of the listed applications as a direct-fit replacement.
Will this cap fit my vehicle?
It fits many Buick, Chevrolet, Dodge and other models. Check the "Vehicles it fits" section to confirm it matches your exact year, make, model and engine.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
