1937-51 Ford & Pickup Radiator Cap – 4 PSI Pressure Relief

Tired of dealing with leaky, unreliable radiator caps? Upgrade to our precision-engineered 4 lbs. pressure radiator cap—built to last and designed for hassle-free performance. Unlike cheaper […]
Tired of dealing with leaky, unreliable radiator caps? Upgrade to our precision-engineered 4 lbs. pressure radiator cap—built to last and designed for hassle-free performance.
Unlike cheaper alternatives that warp or fail under heat, our heavy-duty cap maintains a perfect seal season after season. Ideal for 1937-51 Passenger vehicles and 1937-47 Pickups (Part #41A-8100-A), it takes the guesswork out of cooling system maintenance with its consistent pressure control. No more overheating risks, no more second-guessing—just dependable protection for your classic engine.
Simple to install, built to endure. Choose confidence on the road. (Sold individually.)
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