Looking for in-stock aftermarket parts to modify or upgrade your 2003 Volkswagen Jetta with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories for your Jetta.
Whether you have a 2003 Volkswagen Jetta in GL to Wolfsburg Edition trim we have you covered. We have 6 thermostats available to mod your Jetta. All parts have free shipping to the Continental US 48 States.
 OUT OF STOCK MMTS-BUG-98Mishimoto 98-06 Volkswagen Beetle Racing Thermostat - 73C 1984-2005 Volkswagen Jetta GL 1994-2003 Volkswagen Jetta GLX 1994-2005 Volkswagen Jetta GLS 1997-2006 Volkswagen Jetta TDI 2002-2006 Volkswagen Jetta GLI 2003-2003 Volkswagen Jetta Wolfsburg Edition $84.84 |
 IN STOCK MMTS-GTI-99The Mishimoto racing thermostat for the 99-05 Volkwagen GTI 1.8T will promote greater cooling efficiency in your stock or modified GTI. Once the engine is fully warmed up, Mishimoto's Volkswagen GTI racing thermostat will open at a lower temperature than standard thermostats. This allows coolant to ... Mishimoto 99-05 VW GTI 1.8T 180 Degree Racing Thermostat 1998-2005 Volkswagen Jetta GL / GLS 2003-2003 Volkswagen Jetta Wolfsburg Edition $73.73 |
 IN STOCK MMTS-VR6-93LThe Volkswagen VR6 engine is well known for its remarkable exhaust note and impressive response to forced induction.Keep your stock or modified VR6 cool with the Mishimoto racing thermostat, which is designed to promote greater cooling efficiency by significantly decreasing high engine temperatures.... Mishimoto Volkswagen Golf/Jetta/Passat VR6 Racing Thermostat 1995-2003 Volkswagen Jetta GLX 1995-2004 Volkswagen Jetta GL / GLS 1997-2004 Volkswagen Jetta TDI 2002-2004 Volkswagen Jetta GLI 2003-2003 Volkswagen Jetta Wolfsburg Edition $73.73 |