Use code "SANTASSACK" for 5% off most parts!

COBB 1.3 Bar Radiator Cap



Vehicle Fitment:
1992-2015 Mitsubishi Evolution 1/2/3/4/5/6/7/8/9/X
1990-1999 1G & 2G DSM (Eclipse GST/GSX, Talon TSi & Laser Turbo)
1991-1999 3000GT VR-4 & Dodge Stealth R/T Turbo
2009+ Nissan R35 GT-R
2002-2018 Subaru WRX & STi
And more!


Keep your engine cool by upgrading to the COBB 1.3 Bar Radiator Cap.

This higher pressure cap increases the effective boiling temperature of coolant in the system. The higher temperature allows the cooling system to absorb more heat. The cap increases pressure, and does allow temperature to go up about 10 degrees before fluid boils, but does not reduce temperature. Avoiding boiling makes head gasket failure less likely.

Upgrading the radiator cap allows a vehicle cooling system to absorb and dissipate more heat. This is essential on cars operating in warmer climates or regularly being used on track.

1.3 Bar Pressure
Stainless Steel Construction
EPDM Rubber Seals

STM Boost Reward Points Earn 1% back on all website purchases! Sign up today!

Customer Reviews

Based on 1 review
2g DSM Coolant Cap review

Fits very nice and tight wont leak any more fixed my overheating issure due to old leaking cap it looks great in engine bay and seales very well 5*

Awesome, Pedro! Thank you for shopping with us : )

As per California's Prop65 Laws, we are required to warn you that the products we sell will put you near a vehicle, which emits dangerous chemicals or worse. Please review the link below before purchase.
Cancer and Reproductive Harm