This Aluminium coolant expansion tank is an ideal replacement for your OEM Mazda RX-8 tank, if your looking to make your bay look cleaner, made from sturdy aluminium and tig welded for strength. These tanks are a direct bolt in option and will fit in the stock location using the original size radiator cap.
Being Aluminium they also open up options like having your tank polished, painted, chromed or powder coated for the perfect racecar/showcar look.
The original stock tank suffered from a common fault in all RX-8 models as the float system for the level sensor is prone to failure on the original part. We are also seeing the radiator cap knecks failing due to wear and tear of high tempratures deforming the original plastic tanks.
The Moroso Tank has a billet radiator cap boss meaning this kind of failure is no longer a problem, and it sill accept a factory style cap.
PLEASE NOTE – THE MOROSO TANK DOES NOT INCLUDE A COOLANT LEVEL SENSOR AND IS NOT DESIGNED TO ACCOMMODATE ONE EITHER.
Disconnecting the sensor connector from the stock level sensor will not cause your low coolant warning light to illuminate so please do not worry as this is not an issue, If your cooling system is in good order then coolant loss should not be an issue. We would always recommend checking your coolant on a regular basis regardless of if your running a Moroso tank or an OEM tank. This is just good practice when owning any car.
This tank will fit all years of Mazda RX-8 from 2003-2013
Please note that when changing the tank there is s small pipe that goes on to the top of the radiator, care should be taken when removing this pipe (we recommend you remove it from the expansion tank end and NOT the radiator end) not to crack the plastic top tank of the OEM radiator around the nipple.