Restore proper cooling system sealing on your Corvette with a correct-fit coolant recovery tank cap that ensures reliable pressure control and factory-style appearance.

This Corvette coolant recovery tank cap installs on the coolant overflow reservoir and plays a critical role in maintaining proper cooling system operation. A worn or missing cap can lead to leaks, improper pressure regulation, and cooling inefficiency.

Manufactured as a quality reproduction, this cap features a black plastic construction with raised white print and includes the correct gasket for a secure seal. It’s a direct-fit replacement designed to restore original function and under-hood correctness on C4 Corvettes.

Fits the Following Corvette Models:
C4 Coupes and Convertibles: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996.

Features / Benefits:

• Coolant recovery tank cap for Corvette applications

• Helps maintain proper cooling system sealing and pressure control

• Black plastic cap with raised white print for factory-style appearance

• Includes gasket for secure, leak-free installation

• GM reference part number: 10239665

Material / Finish:
Black plastic construction with raised white lettering and integrated gasket for durability and correct under-hood appearance.

Dimensions:
Cap diameter: 2" (50.8 mm)
Tube length: 4 3/4" (120.7 mm)
Overall length: 5 3/4" (146.1 mm)

Because Details Matter
Cooling system components rely on proper sealing to do their job. This coolant recovery tank cap restores dependable function, correct fit, and original appearance. For Corvette owners who care about reliability and correctness, even small under-hood details matter.