1976-97 Radiator Overflow Jar Cap Non-Vented

OER reproduction of the non-vented radiator overflow jar cap for various models ranging from 1976 through 1997. Features the correct words "ENGINE COOLANT ONLY" on the cap. Replace you broken, warped or missing cap with a brand new Josh's Muscle Car Parts reproduction cap and make your engine compartment look better.

The "1976-97 Radiator Overflow Jar Cap Non-Vented" refers to a specific type of cap used on the radiator overflow jar of vehicles produced between the years 1976 and 1997. Let's explore the details of this component:

Year Range (1976-1997): This specifies the period during which the non-vented radiator overflow jar cap was commonly used. The cap is designed to be compatible with vehicles manufactured within this time frame.

Radiator Overflow Jar: The radiator overflow jar, also known as the coolant overflow reservoir or expansion tank, is a container that holds excess coolant from the radiator as the engine heats up. It plays a crucial role in the cooling system by allowing coolant to expand and contract without being lost.

Non-Vented Cap: A non-vented radiator overflow jar cap is designed without a venting mechanism. In contrast, a vented cap would have a small opening that allows air to escape when the coolant expands. Here's more about the non-vented cap:

Function: The cap serves as a seal for the radiator overflow jar, preventing coolant from leaking or evaporating. The non-vented design means that no air can escape through the cap as the coolant expands and pushes against it.
Pressure Regulation: In a non-vented cap setup, excess pressure created by expanding coolant is relieved by allowing coolant to flow into the overflow jar. As the engine cools down and the coolant contracts, the system draws coolant back into the radiator from the overflow jar.
Coolant Loss Prevention: The non-vented cap helps prevent coolant loss due to evaporation, ensuring that the cooling system remains at the appropriate level.

Significance of the Cap: The radiator overflow jar cap, whether vented or non-vented, is a crucial component in maintaining the proper function of the cooling system. It helps prevent overheating, coolant loss, and potential damage to the engine.

If you own a vehicle from the 1976-1997 time range and need to replace the radiator overflow jar cap with a non-vented design, it's important to ensure you obtain the correct cap that matches your vehicle's model and year. You can find suitable replacement caps from automotive parts suppliers, dealerships, or online retailers specializing in vehicle components, like us.

Applications:

1978-92 Chevrolet Camaro

1976-79 Chevrolet Nova

1977-90 Chevrolet Caprice

1977-85 Chevrolet Impala

1977-82 Chevrolet Corvette

1985-86 Chevrolet/GMC C/K Series Truck

1988-91 Chevrolet/GMC C/K Series Truck

1987-97 Chevrolet/GMC R/V Series Truck

1983-94 Chevrolet S10 Truck

1982-92 Pontiac Firebird

Also Fits:

Camaro: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992

Corvette: 1977, 1978, 1979, 1980, 1981, 1982

Firebird: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992

GM Truck: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

Impala: 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990

Nova: 1976, 1977, 1978, 1979

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The 1960s muscle car era was a time of great innovation and growth in the automotive industry. It was a period of intense competition between car manufacturers, as they sought to outdo one another with increasingly powerful and sophisticated vehicles.

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