PRL Motorsports Baffled Coolant Expansion Tank

Over time, the factory plastic coolant expansion tanks that Honda/Acura include from the factory can weaken and fail from heat and pressure cycles. The PRL Coolant Expansion Tank kit replaces the factory tank with a more robust aluminum version. Our 6061 aluminum tank will not be effected by temperature and can hold higher pressures so it will out-last the factory tank. Our reservoir also more than doubles the tank's coolant capacity to 1.32 quarts (1.25 liters), while the stock tank only holds .58 quarts (.55 liters) allowing for a greater volume of coolant to carry heat away from the engine internals while maintaining a tidy engine bay. Our tank is constructed from 3mm thick aluminum and features internal baffling to prevent coolant sloshing and cavitation. The kit includes all necessary fittings to fit either the FK8/FL5/DE5 Civic Type-R/Integra Type-S applications as well as the fittings needed to fit the 2016-2021 Civic with the 1.5t engines.

• Robust 3mm 6061 Aluminum Construction
• Laser Cut and TIG Welded for Unmatched Fit and Finish
• Striking Red or Black Anodized Finish with Laser Engraved Logos
• Billet Machined Barb Fittings and Sight Glass
• Buna-N O-Rings for Unmatched Temperature and Leak Resistance

• Fully welded and anodized expansion tank (red or black)
• 1x 1/16” NPT 8mm barb fitting
• 2x 8AN ORB 14mm barb fittings
• 1x 8AN ORB 17mm barb fitting
• 1x 8AN ORB 8mm barb fitting
• 1x 10AN sight glass