Everseal radiator cap
Everseal radiator cap

Everseal radiator cap

everseal caps

Regular price $9.99

These are OEM everseal R1, R2 caps.  We were able to scoop up a few in an auction for our purist customers.  When they're gone they are gone.  

This is the conventional size and fits a variety of other vehicles that  utilize the inverted cup that rides and "formed ramp" until it strikes the downward facing tab stop.  Its commonly called a bayonet-style cap and was used with with non pressure systems. A neck is included for illustration purposes e.g. you are buying a cap and not buying a neck.

We have tested these and we estimate that the fiberboard seal and inverted shallow brass cup behind it create a resistance of ~3psi.  It is intended for non pressure systems


Auburn 1935-1937
Buick 1935-1935
Chevrolet 1935-1935
Chrysler 1935-1938
Desoto 1935-1938
Dodge 1935-1936
Ford 1935-1935
Graham 1934-1937
Hudson 1935-1935
Hupmobile 1938-190
Indiana Trucks 1937, 1938-1948
International 1937
LaSalle 1935-1936
Lincoln Zephyr 1936-1937
Mack Truck 1937
Oldsmobile 1934-1936
Packard 1935-1939
Pierce Arrow 1935-1938
Plymouth 1934-1936
Pontiac
Reo 1933-1935
Studebaker 1936-1940
Terraplane 1935-1936


We make to order. Please allow adequate time for us to build.

Build time estimates [Feb 2025]

Brass/Black Model Ts

Our longstanding foundry (supplier) closed and all production was shifted to a neighboring foundry.  Apparently many of the closed foundry's workers were ineligible for rehire by the new foundry due to more aggressive immigration enforcement and the union has no employees to provide.  As of 2-20-25, we should receive castings in March 2025 and can resume production then. 

In the interim, we have been working with our one-off foundry to have pattern boxes made and these are trickling in in smaller batches and we will produce what we can.

Model As 5-6 weeks

Heater cores ~6 weeks

Model A and 32 Ford Street rods 6 weeks

Common street rods ~12-15 weeks

Tricky customs & complicated restorations ~16 weeks months

We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.