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Overflow & Expansion Tanks
There are a couple of reasons for why you would want to replace your factory coolant overflow and expansion tanks. For example, if you drive any Subaru turbo model, take a look at your factory expansion tank. Notice how it hurts the eyes. Now look at the coolant overflow tank. It is plastic, kind of yellow, and honestly it kind of looks like a medical dispenser of some sorts. The fact is that if you're trying to win a car show, then the factory coolant expansion and overflow tanks are going to hurt your chances. And although they do work and do their job well, RallySport Direct carries a great selection of attractive overflow, and coolant expansion tanks that will enhance that dusty engine bay of yours.
Most of the offerings from RallySport Direct are going to come in an aluminum construction. Some will come powder-coated, and some will come polished. Some are universal, and some are vehicle specific. For example, do you have a Nissan GTR? Replace that boogie man of a coolant expansion tank with the AMS Performance Coolant Expansion Tank Kit. If you drive a Subaru WRX or STI, there are several great examples from Mishimoto, COBB, Killer B Motorsport, Moroso and PERRIN among other great brands.
And while you're updating your overflow and expansion tanks, take a moment and upgrade the rest of your cooling system and check out our large selection of radiators, as well as radiator caps and thermostats.
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37 Results
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MMRT-WRX-01ERKST
Mishimoto Rockstar Aluminum Coolant Expansion Tank - 2002-2007 Subaru WRX / 2004-2021 STI
5 In Stock
MMRT-WRX-08E
Mishimoto Aluminum Coolant Expansion Tank - 2008-2014 Subaru WRX
1 In Stock
MMRT-WRX-08EBK
Mishimoto Aluminum Coolant Expansion Tank Black - 2008-2014 Subaru WRX
10 In Stock
800630
COBB Tuning Overflow Tank w/Washer Fluid Relocation Kit - 2004-2007 Subaru WRX/STI
30 In Stock
800660
COBB Tuning Subaru Coolant Overflow Tank - 2015-2021 Subaru WRX / STI
UTCRV2AN-B
Killer B Motorsport Upper Coolant Reservoir w/ AN Fittings Black - Subaru Models (inc. 2002-2007 WRX / 2004-2021 STI)
IAG-ENG-5301BK
IAG Coolant Expansion Tank Black - 2002-2007 Subaru WRX / STI
3 In Stock
MMRT-FIST-14E
Mishimoto Coolant Expansion Tank Polished - 2014-2019 Ford Fiesta ST
7 In Stock
MMRT-CTR-17EMWBK
Mishimoto Aluminum Coolant Expansion Tank Black - 2017-2020 Honda Civic Type R
7 In Stock
MMRT-MUS-15E
Mishimoto Aluminum Coolant Expansion Tank - 2015-2017 Ford Mustang
ASM-ENG-503
PERRIN 15-21 WRX PERRIN Performance Coolant Overflow Tank
ALP.07.02.0002-2
AMS Performance Coolant Expansion Tank Kit - 2009-2019 Nissan GT-R
8 In Stock
MMRT-CA
Mishimoto Aluminum Coolant Reservoir Tank Universal - Universal
3 In Stock
MMRT-RS-16EWRD
Mishimoto Aluminum Reservoir Expansion Tank Wrinkle Red - 2013-2018 Ford Focus ST / 2016-2018 Focus RS
10 In Stock
MMRT-MUS-15EBK
Mishimoto Aluminum Coolant Expansion Tank Black - 2015-2017 Ford Mustang
3 In Stock
MMRT-RS-16EWBL
Mishimoto Aluminum Reservoir Expansion Tank Wrinkle Nitrous Blue - 2013-2018 Ford Focus ST / 2016-2018 Focus RS
3 In Stock
MMRT-CAWRD
Mishimoto Aluminum Coolant Reservoir Tank Wrinkle Red - Universal
2 In Stock
MMRT-BRZ-13BK
Mishimoto Aluminum Overflow Tank Black - 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86
DWR2-B
Killer B Motorsport Dual Washer/Coolant Reservoir - 2002-2014 Subaru WRX / 2004-2021 STI
1 In Stock
MMRT-BRZ-13P
Mishimoto Aluminum Overflow Tank Polished - 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86
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