When Should I Replace My Coolant Reservoir Tank? - A coolant reservoir is part of the engine cooling system and is a small plastic container attached to the radiator or engine block. Its main function is to collect and store excess coolant that expands when heated, and it plays a very important role in the cooling system. If your car is experiencing problems such as engine overheating, low coolant levels, leaks, and coolant odor, you may need to replace your coolant reservoir.
Replacement Part Numbers - 603-703, 603703, 8D0121403L, 8D0121403F, 8D0121403J, 3B0121321. Please check the detailed description or enter Year/Make/Model to check your compatibility before purchasing this radiator overflow tank.
Compatible with Select Audi & Volkswagen Models - 1998 - 2001 Audi A4 L4 1.8L / V6 2.8L, 1998 - 2001 Audi A4 Quattro L4 1.8L / V6 2.8L, 1998 - 2001 Audi A6 V6 2.8L, 1998 - 2001 Audi A6 Quattro V6 2.8L, 2003 - 2005 Audi Allroad Quattro V8 4.2L, 2003 - 2004 Audi RS6 V8 4.2L, 2000 - 2002 Audi S4 V6 2.7L, 1998 - 2005 Volkswagen Passat L4 1.8L / L4 1.9L / L4 2.0L / V6 2.8L.
Direct Replacement - Perfect match, direct replacement. When replacing the coolant overflow tank, please turn off the car and wait for the tank to cool down before proceeding. This coolant reservoir replacement is made from premium materials to ensure superior quality and long-lasting performance. This is not a genuine part, but an aftermarket replacement.
Service Guarantee - We have strict quality control standards to ensure high performance. If you have any questions or concerns, please feel free to contact us.
13220124 Coolant Reservoir Tank with Cap Compatible with 2010 - 2020 Buick Allure, LaCrosse , Regal | Cadillac SRX, XTS | Chevrolet Impala, Malibu, Limited Replaces# 603-385
KWD 11
N5346001 Coolant Reservoir Tank with Cap & Sensor Compatible with Peterbilt 348, 365, 367, 377, 382, 384, 385, 386, 388, 389| Kenworth T600, T660, T800, W900 Replaces# 603-5403, T1673008
KWD 37.500
-15%
55111260AB Coolant Reservoir Tank, Radiator Reservoir Tank with Cap Compatible with 2011-2021 Chrysler 300, Dodge Challenger, Dodge Charger V6 V8 3.6L 5.7L 6.4L Replaces# 603-380, 55111260AF
KWD 22.500
-10%
5072602AA Coolant Reservoir Tank with Cap Compatible with 2002 - 2003 Dodge Ram 1500 V6 3.7L/V8 4.7L | 2003 Dodge Ram 1500, 2500, 3500 V8 5.7L | 2002 Dodge Ram 4000 V8 5.7L Replaces# 603-487
KWD 18.500
