Upgrade your cooling system performance with the GReddy Type-N High-Pressure Radiator Cap. Designed for high-stress driving conditions, this cap increases the cooling system's internal pressure to 1.3 kg/cm² (1.3 bar), which effectively raises the boiling point of your coolant. This prevents cavitation and ensures consistent heat transfer during track use or spirited driving.

The Type-N series is specifically engineered to fit the "small neck" radiator filler necks commonly found on modern Japanese vehicles. Manufactured with a high-quality valve spring and a precision-engineered seal, it provides a reliable, direct replacement for your factory unit while adding a clean, technical look to your engine bay.

• Part Number: 13911001
• Pressure Rating: 1.3 kg/cm² (18.5 psi)
• Cap Style: Type-N (Fits select Honda, Toyota, Mazda, Mitsubishi, and Suzuki models)
• Color: Black
• Material: Stainless steel and heat-resistant silicone seal

Fits select 1988-2025 Cadillac, Chevrolet, Chrysler, Dodge, Eagle, Freightliner, Jeep, Oldsmobile, Pontiac, and Ram vehicles. This Gates Safety Release Radiator Cap is engineered to maintain cooling system pressure while providing a crucial layer of safety for DIYers and professional technicians alike.

The integrated safety lever allows you to manually bleed off internal pressure and steam before fully removing the cap, significantly reducing the risk of accidental scalds or burns. Built with a heavy-duty calibrated spring and high-grade seals, this 18 psi cap ensures your cooling system operates within factory tolerances to prevent coolant boil-over and engine overheating.

• Manufacturer Part Number: 31535
• Pressure Rating: 18 psi
• Integrated thumb lever for controlled pressure venting
• Replaces worn or leaking OE radiator caps
• Durable metal construction with heat-resistant gaskets

Fits select 1983-2011 Acura, Chevrolet, Chrysler, Dodge, Eagle, Ford, Geo, Honda, Hyundai, Infiniti, Kia, Mazda, Mitsubishi, and Nissan vehicles.

The Gates 31533 radiator cap is a precision-engineered replacement for worn or leaking original equipment caps. Designed to maintain the cooling system's internal pressure at 13 psi, this cap prevents coolant from boiling at lower temperatures and ensures the recovery system functions correctly. A failing cap can lead to overheating or fluid loss; this Gates unit provides a secure seal to maintain system integrity under heavy thermal loads.

• Pressure Rating: 13 psi
• Manufacturer Part Number: 31533
• Application: Direct OE-style replacement for cooling system pressure control
• Reliability: Designed to meet or exceed factory specifications for fit and sealing performance
• Fitment Range: 1983-2011 (Multiple makes and models)

Fits select 1983-2021 Acura, Chevrolet, Chrysler, Dodge, Eagle, Ford, GMC, Geo, Honda, Hyundai, Infiniti, Mazda, Mitsubishi, and Nissan models.

Maintain your engine's cooling efficiency with the Gates 31333 Radiator Cap. As a critical component of a pressurized cooling system, this cap ensures that coolant remains within the radiator and expansion tank while preventing air from entering the system. Over time, original seals can fail or springs can lose tension; this Gates cap restores factory-specified pressure control to help prevent overheating and fluid loss.

• Reliable Pressure Control: Engineered to hold the specific cooling system pressure required for consistent engine temperatures.
• Durable Construction: Built with corrosion-resistant metal components and heavy-duty rubber seals for long-term reliability under-hood.
• Exact Fitment: Designed as a direct replacement for the factory cap to ensure an airtight seal.
• Manufacturer Part Number: 31333

The Cusco High Pressure Type-B Radiator Cap (MPN: 00B 050 B13) is engineered to improve cooling system efficiency by increasing the internal pressure of your vehicle's cooling system. By raising the relief valve's opening pressure, this cap increases the boiling point of the coolant, providing a vital safeguard against overheating and coolant boil-over during high-load conditions or spirited driving.

• Part Type: Radiator Cap (Type-B)
• Pressure Rating: High-pressure design for enhanced thermal management
• Manufacturer Part Number: 00B 050 B13
• Function: Increases boiling point to prevent cooling system failure under stress

Constructed for durability and a precise seal, this Cusco cap is a direct replacement for factory caps on compatible radiator necks. Please ensure your application requires a Type-B cap prior to installation.

Fits select 1985-2016 Mazda MX-5 Miata and Toyota Corolla Sport GTS.

The Cusco High Pressure Type-A Radiator Cap is engineered to improve the thermal efficiency of your cooling system. By increasing the internal pressure of the radiator, this cap raises the boiling point of the coolant, providing a vital safety margin during high-load scenarios or spirited driving. This prevents localized boiling and air pocket formation within the engine block and radiator core.

• Model: High Pressure Radiator Cap (Type-A)
• MPN: 00B 050 A13
• Function: Increases cooling system pressure to raise the coolant boiling point
• Fitment: Direct replacement for factory Type-A radiator caps
• Application: Compatible with select Mazda and Toyota cooling systems

Vehicle Fitment:

Ensure consistent cooling system pressure with this bulk case of 20 CSF 4540 mini-style radiator caps. Rated at 20 PSI, these high-pressure caps are engineered to raise the boiling point of your engine coolant, providing an extra margin of safety and improved thermal efficiency during high-load or performance driving conditions.

• Manufacturer Part Number: 4540
• Pressure Rating: 20 PSI
• Cap Style: Mini Cap
• Interchange: Stant 10361
• Quantity: Bulk Case of 20

Constructed for durability and a precise fit, the CSF 4540 serves as a direct technical interchange for the Stant 10361. This case pack is an ideal solution for fleet maintenance, professional repair shops, or race teams requiring multiple high-quality pressure caps on hand.

The BLOX Racing Type B V2 High-Pressure Radiator Cap is engineered to improve cooling system efficiency by increasing the boiling point of your engine coolant. By maintaining a higher pressure of 1.3 Bar (18.9 psi) compared to standard factory caps, this component helps prevent coolant cavitation and overheating during high-performance driving or track use.

Fits select 2012-2015 Honda Civic and 2013-2023 Toyota 86 and Subaru BRZ models.

• Pressure Rating: 1.3 Bar (18.9 psi)
• Designation: Type B V2
• Improves thermal management by raising the coolant boiling point
• Direct replacement for compatible OEM radiator caps
• Durable construction designed for high-heat environments
• Manufacturer Part Number: BXCC-00091-V2

Fits select 2017-2024 Honda Civic Type-R and 2002-2024 Subaru WRX.

The BLOX Racing Type A V2 Radiator Cap is engineered to improve cooling efficiency by increasing the internal pressure of the cooling system to 1.3 Bar. This higher pressure threshold raises the boiling point of your engine coolant, providing a vital margin of safety against overheating during high-performance driving or track sessions. It is a direct-fit upgrade designed to replace the standard factory cap with a more robust, performance-oriented solution.

• Increases cooling system pressure to 1.3 Bar (18.9 psi)
• Type A V2 configuration for specific radiator neck fitment
• Helps prevent coolant boiling and cavitation under load
• Essential for track-driven and modified vehicles
• Manufacturer Part Number: BXCC-00090-V2