$ 160.00 $ 0.00


  • Plug and play OEM replacement
  • High-quality oversized cap w/ o-ring
  • Available in black and raw finish
  • 6061 aluminum laser cut
  • Exceptional welds


Renegade Motorsports S2000 Coolant Reservoir Install Guide


NOTE: Due to the nature of crafting this product from aluminum, reservoirs may have weld etching and/or tooling marks. Reservoir should be filled 40-50% depending on oversized or OEM radiator, respectively. 


What is that pin hole on top of the reservoir?

These coolant reservoirs are often referred to as "overflow tanks," but it is probably more appropriate to call them "expansion tanks." In order for the reservoirs to function properly, they need to be vented to create vacuum. We laser cut the venting hole on top, which allows for the hot coolant to expand into the reservoir; it then cools, and returns to the radiator.  This helps keep your cooling system free of air, allowing it to operate at maximum efficiency as intended by the OEM design.


Still have questions? Please contact us directly and we would be happy to help you through them. 


Disclaimer: Renegade Motorsports products are sold for off-road use only. All performance modifications and installations are performed at the customer's own risk. Renegade Motorsports holds no responsibility either implied or otherwise for mechanical, electrical, or other failure when using an aftermarket performance product, and expressly denies such responsibility. Renegade Motorsports makes no representations and assumes no responsibility for the legality of such items. Products sold for off-road use may be illegal in some states and provinces, and are intended for vehicles which may never be used on a  public road.