Engine Coolant Reservoir Cap (W0133-1974869-RIN) by Rein®. Improve your vehicle's engine efficiency and extend its life expectancy with Rein Automotive parts that are built with premium quality fit, form, and function. All parts are manufactured in an approved ISO 9001:2008 facility, meeting the highest standards for quality and reliability.
- Made to keep your vehicle's engine running cool
- Designed to maintain proper cooling level and prevent overheating
- Manufactured from high-strength materials to last
- Durable construction to withstand everyday wear and tear
A lot of heat is created when an engine is running, but only about a third of this heat energy is used to power the vehicle. Roughly another third goes out the tailpipe and the remainder is absorbed by the engine’s metal components. If this heat isn’t dissipated, an engine will soon fail. The cooling system removes this heat and maintains a regular operating temperature that is ideal for performance and longevity. Coolant circulates through passages in the engine, where it absorbs the heat from the metal. The coolant is then pumped to the radiator where the heat is transferred to the surrounding air.
To ensure peak engine performance and long engine lifespan, perform regular cooling system maintenance and when you need replacement parts, choose Rein. With Rein you can be assured of perfect fit and optimal function because all Rein parts are made to OE specifications in quality certified manufacturing facilities.
Although they have only been a part of CRP Automotive for a short time, Rein® Automotive products have quickly become very popular because of their quality and reliability. The Rein product line first was introduced to North America in 2007 and had instant success in the automotive aftermarket. Nowadays Rein products continue to earn recognition among customers worldwide. Rein produces parts for some of the world’s finest automobiles, including BMW, Mercedes-Benz, and Porsche, and each genuine replacement part has guaranteed OE-quality.