Coolant Expansion Tank Cap compatible with Mitsubishi Outlander, Outlander Sport, Lancer, Outlander PHEV, Galant, Eclipse 2004-2023 - White Overflow Reservoir Bottle Cap MR597536, Click&Fit

["Outer sealing plug diameter 35 mm (1.378 in) with 5.3 mm sealing height - verify the reservoir neck on your overflow bottle matches this dimension before ordering, as some mid-cycle production years use a larger neck.","Replaces OEM part numbers MR597536, MR597327, and 1375A026 plus aftermarket equivalents RC261, T117, and 54242. This is an aftermarket coolant expansion tank cap, not a genuine part.","Compatible with Mitsubishi: Outlander 2007-2020, Outlander PHEV 2014-2022, Outlander Sport 2011-2012 and 2016-2023, ASX 2010-2012 and 2016-2024, RVR 2011-2012 and 2016-2024, Lancer 2008-2017 (non-turbo).","Compatible with Mitsubishi: Galant 2004-2012, Endeavor 2004-2011, Eclipse 2006-2012, Delica D:5 2007-2019. White matte polypropylene cap with integrated tether matches OEM finish.","For Mitsubishi 2013-2015 Outlander Sport, ASX, and RVR: a larger mid-cycle reservoir neck was used - the 35 mm cap does not seal these years. This is an atmospheric overflow cap, not a primary pressurized radiator cap."]