# MotoRad ST4 Engine Coolant Safety Lever Radiator Cap for 1948-1968 Chevy 210 ### Specifications Cap Depth: 1.48 in Coolant Recovery System: Open & Closed System Lever Type: Safety Lever Material: Stainless Steel, Plastic, Rubber Pressure Rating: 4 psi Quick Pressure Release: Yes SAE Pressure Range: 3-5 psi Width: 2.25 in ### Features - Offer precise pressure control - Ensure the proper fit - Feature safety lever - Easy installation ### Product Details Engine Coolant Safety Lever Radiator Cap (ST4) by MotoRad®. Pressure: 4 psi. MotoRad radiator caps are designed and manufactured to offer precise control for the automotive cooling system. MotoRad safety lever radiator caps utilize a lever that locks the cap to the filler neck requiring the lever be lifted before removal. When the lever is lifted, the valve pressurizing in the cooling system is opened and pressure is vented through the overflow tube making it safe to remove the radiator cap. MotoRad radiator pressure caps are designed and manufactured to offer precise pressure control for the automotive cooling system. Most standard radiator caps are also offered in a version with a safety lever feature. MotoRad’s radiator caps are manufactured to meet all OEM requirements and each part is factory tested prior to shipping to customers. A slowly failing, worn out or faulty radiator cap can result in overheating, loss of coolant or even major engine damage. One function of the radiator cap is to keep pressure on the cooling system. If the pressure on the system drops because of a failing radiator cap, the boiling point of the coolant also drops. If the boiling point drops enough, it can cause the engine to overheat. If you replace a thermostat and the radiator cap is more than three years old, chances are is not holding to the same pressure as a new cap. Explain to your customer that by replacing the thermostat and the radiator cap, their vehicle should run within the specified operating temperature and the coolant system will be properly pressurized. The radiator pressure cap is a very important component of the system. The cap monitors the pressure of the system and adjusts to maintain the desired pressure (normally in the 15 psi range). If an improper cap or a defective cap is used, the correct system pressure will not be maintained. If the system pressure is too low the coolant will be allowed to boil at unacceptable temperatures. If the system pressure is too high, damage to the system can occur, potentially causing loss of coolant and an engine overheating condition. Brand: MotoRad Part Number: ST4 UPC: 055644910048 OE Numbers: 19114613 ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1953 Chevy 210 1954 Chevy 210 1955 Chevy 210 1952 Chevy Bel Air 1953 Chevy Bel Air 1953 Chevy Corvette 1950 Chrysler Imperial 1950 Chrysler New Yorker 1950 Chrysler Newport 1951 Chrysler Newport 1950 Chrysler Royal 1950 Chrysler Town and Country 1957 Dodge DW Pickup 1958 Dodge DW Pickup 1959 Dodge DW Pickup 1957 Dodge Power Wagon 1958 Dodge Power Wagon 1959 Dodge Power Wagon 1957 Dodge Truck 1958 Dodge Truck 1959 Dodge Truck 1953 Ford F-100 1954 Ford F-100 1955 Ford F-100 1956 Ford F-100 1953 Ford F-250 1954 Ford F-250 1955 Ford F-250 1956 Ford F-250 1953 Ford F-350 1954 Ford F-350 1955 Ford F-350 1956 Ford F-350 1954 GMC 250-22 1954 GMC 250-24 1954 GMC Truck 1953 Kaiser Carolina 1948 Kaiser Custom 1954 Kaiser Darrin 1949 Kaiser Deluxe 1950 Kaiser Deluxe 1951 Kaiser Deluxe 1952 Kaiser Deluxe 1953 Kaiser Deluxe 1953 Kaiser Dragon 1952 Kaiser Manhattan 1953 Kaiser Manhattan 1954 Kaiser Manhattan 1949 Kaiser Special 1950 Kaiser Special 1951 Kaiser Special 1954 Kaiser Special 1949 Kaiser Vagabond 1950 Kaiser Vagabond 1949 Kaiser Virginian 1950 Kaiser Virginian 1949 Nash Ambassador Custom 1950 Nash Ambassador Custom 1951 Nash Ambassador Custom 1949 Nash Ambassador Super 1950 Nash Ambassador Super 1951 Nash Ambassador Super 1950 Nash Statesman 1951 Nash Statesman 1949 Plymouth Deluxe 1950 Plymouth Deluxe 1950 Pontiac Catalina 1968 Toyota Corolla ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase. **What part number is this?** The listed part number is ST4. **Is this product designed for direct replacement?** Yes. This product is intended to match the compatible vehicle applications listed in the fitment table. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering. ### Common Searches - Engine Coolant Safety Lever Radiator Cap for Chevy 210 - ST4 fitment - MotoRad Engine Coolant Safety Lever Radiator Cap - 1953 Chevy 210 Engine Coolant Safety Lever Radiator Cap ## Details - **Price:** 9.95 CAD - **Vendor:** MotoRad - **Type:** Engine Coolant Safety Lever Radiator Cap - **Tags:** 1948 Kaiser Custom, 1949-1950 Kaiser Vagabond, 1949-1950 Kaiser Virginian, 1949-1950 Plymouth Deluxe, 1949-1951, 1949-1951 Nash Ambassador Custom, 1949-1951 Nash Ambassador Super, 1949-1953 Kaiser Deluxe, 1950 Chrysler Imperial, 1950 Chrysler New Yorker, 1950 Chrysler Royal, 1950 Chrysler Town and Country, 1950 Pontiac Catalina, 1950-1951 Chrysler Newport, 1950-1951 Nash Statesman, 1952-1953 Chevy Bel Air, 1952-1954 Kaiser Manhattan, 1953 Chevy Corvette, 1953 Kaiser Carolina, 1953 Kaiser Dragon, 1953-1955 Chevy 210, 1953-1956 Ford F-100, 1953-1956 Ford F-250, 1953-1956 Ford F-350, 1954 GMC 250-22, 1954 GMC 250-24, 1954 GMC Truck, 1954 Kaiser Darrin, 1954 Kaiser Special, 1957-1959 Dodge DW Pickup, 1957-1959 Dodge Power Wagon, 1957-1959 Dodge Truck, 1968 Toyota Corolla, Automotive, Engine Coolant Safety Lever Radiator Cap, MotoRad, ST4 ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 9.95 CAD | In stock | ## Images - MotoRad ST4 Engine Coolant Safety Lever Radiator Cap for 1948-1968 Chevy 210 --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-st4-engine-coolant-safety-lever-radiator-cap) > Updated: 2026-08-17