Click to zoom in
SKU: 63350 / UPC: 084663633508
Moroso Racing Radiator Cap, 38-42 PSI
The Moroso Racing Radiator Cap, designed for high-pressure performance in demanding racing and street applications. Engineered with precision, this 38-42 PSI radiator cap ensures reliable pressure regulation, enhancing heat transfer and maintaining coolant system integrity under extreme conditions. Crafted by Moroso, a trusted name in automotive performance since 1968, this radiator cap delivers durability and functionality for racers and enthusiasts alike.
Key Features and Benefits
- High-Pressure Design (38-42 PSI): Maintains consistent pressure to increase the boiling point of coolant, ensuring efficient heat dissipation for high-performance engines.
- Durable Construction: Features a stainless steel spring and solid brass spring retainer for long-lasting performance and resistance to rust, even in harsh racing environments.
- Six-Sided Hexagon Design: Provides a secure grip for easy installation and removal, making maintenance quick and hassle-free.
- Universal Fitment: Compatible with standard-size radiator filler necks, including Moroso radiator models (Part Nos. 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, 63745), ensuring versatility across various vehicle setups.
- Racing and Street Ready: Built to meet the needs of circle track, road racing, and high-performance street applications, delivering reliable performance in high-stress conditions.
What’s Included in Your Purchase
- Moroso Racing Radiator Cap (SKU: 63350, UPC: 084663633508)
- Pressure Rating: 38-42 PSI
- Material: Steel with stainless steel spring and solid brass spring retainer
- Design: Six-sided hexagon for easy tightening
Vehicle Fitment
The Moroso Racing Radiator Cap (SKU: 63350) is designed for universal fitment on vehicles with standard-size radiator filler necks. It is compatible with a wide range of makes and models, particularly those equipped with Moroso radiators or aftermarket cooling systems requiring high-pressure caps. Common applications include:
- Racing Vehicles: Suitable for circle track, drag racing, and road racing vehicles.
- High-Performance Street Cars: Fits custom builds and modified vehicles with standard radiator filler necks.
- Specific Moroso Radiator Compatibility: Works seamlessly with Moroso radiator part numbers 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, and 63745.
Note: Verify your vehicle’s radiator filler neck size and pressure requirements before purchase to ensure proper fitment. This cap is designed for standard-size filler necks but may not fit all OEM or specialty radiators.
Why Choose the Moroso?
Unlike standard radiator caps, the Moroso 63350 is built for the rigors of high-performance driving. Its 38-42 PSI rating supports extreme cooling demands, making it ideal for racing applications where engine temperatures push the limits. The stainless steel spring maintains accurate pressure over time, preventing leaks and ensuring consistent performance. Backed by Moroso’s legacy of quality, this radiator cap is a reliable choice for drivers seeking durability and performance in their cooling system.
Purchase Details
- Part Number: 63350
- UPC: 084663633508
- Warranty: Manufacturer’s warranty available; contact Moroso customer service for details.
Customer Assurance
Moroso Performance Products, founded by racer and engineer D. Moroso, has been a leader in automotive performance for over 50 years. This radiator cap reflects their commitment to quality, designed to meet the needs of grassroots racers and professional teams alike.
Cooling
Cooling system parts and accessories for HEMI, Hellcat, Trackhawk, Duramax, Cummins, and import performance builds are stocked at Black Ops Auto Works. Shop radiators, thermostats, thermostat housings, water pumps, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, and thermal wrap for street, track, towing, and diesel platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2116 Cooling SKUs across radiator, thermostat, water pump, hose, and heat management categories. What This Category Covers The Cooling category groups together every part that keeps engine, transmission, and charge air temperatures in check under real driving load. Coverage spans aluminum performance radiators, billet thermostat housings, high flow water pumps, silicone radiator hose kits, coolant reservoirs and expansion tanks, oil and transmission co...
View Cooling Products
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
Moroso
Moroso performance parts and engine-bay hardware are stocked at Black Ops Auto Works for street, drag, road-race, swap, and restoration builds. Shop Moroso oil pans, oil pump pickups, breather tanks, catch cans, valve covers, oil filters, drain plugs, fuel-system accessories, cooling hardware, carburetor studs, spark plug wire looms, drag shocks, and race-prep parts for GM LS and small block, Ford Coyote and classic Ford, Chrysler and Mopar, Toyota 1JZ and 2JZ, Subaru, and other broad performance platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 241 Moroso SKUs across oil control, crankcase ventilation, engine dress-up, fuel and cooling support, fasteners, and track-focused chassis hardware. About Moroso Performance Products Moroso develops race-proven parts that help builders control oil, manage crankcase pressure, organize the engine bay, and prepare vehicles for dema...
View Moroso Products
Radiator Caps
Radiator Caps parts and accessories for Silverado, F 150, Mustang, Camaro, Civic, WRX, BRZ, Toyota 86, 350Z, Duramax and Cummins applications are stocked at Black Ops Auto Works. Shop high pressure caps, 13 psi caps, 16 psi caps, 20 psi caps, 22 psi caps, coolant tank caps, safety release caps, radiator cap seals, Type A caps and Type S caps for street cars, trucks, turbo imports, domestic performance builds and racing cooling systems. Every product is filterable by year, make, model, trim, engine and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 40 Radiator Caps SKUs across pressure ratings, neck types, cap depths, seal styles and vehicle specific cooling system requirements. What Radiator Caps Cover A radiator cap seals the cooling system and maintains the designed pressure range as coolant temperature changes. This collection includes replacement, high pressure, safety release and billet coolant tank cap options. Pressure control for the co...
View Radiator Caps Products