17117639020 Radiator Expansion Tank Cap, Coolant Reservoir Cap Replacement Compatible with BMW E90 E60 F10,1.4 Bar Pressure Rated Universal Coolant Tank Accessories

Maintain optimal cooling system performance and reliability with the Nextpal Radiator Expansion Tank Cap. This precision-engineered replacement part is designed to provide consistent pressure regulation and long-lasting service. This critical coolant reservoir cap is rigorously rated for a working pressure of 1.4 bar, a specification crucial for maintaining the correct internal pressure within your vehicle's cooling system. This precise regulation effectively raises the coolant's boiling point to prevent overheating and avoid coolant loss, while its calibrated internal spring and valve mechanism work together to ensure consistent performance and protect your engine from potential damage caused by harmful pressure fluctuations. The cap is constructed from high-quality plastic and incorporates a reliable rubber gasket for long-term durability. Designed to directly replace OEM part number 17117639020, this cap is a direct-fit replacement for the original manufacturer. It requires no tools and installs quickly; simply screw it onto the expansion tank filler neck smoothly and securely. This plug-and-play solution ensures accurate placement and immediate effectiveness, making this simple repair possible without the need for professional assistance. It is strongly recommended that you verify that part number 17117639020 matches your vehicle's original cap and consult the detailed compatibility list provided to confirm it fits your specific model and year. Your purchase includes a coolant expansion tank cap that installs immediately on compatible coolant tanks. All necessary components are included in the shipment, providing a reliable and cost-effective solution to restore cooling system integrity and ensure your vehicle continues to operate at optimal performance.

• Precise Pressure Regulation, System Protection: This radiator expansion tank cap has a pressure rating of 1.4 bar, which is crucial for maintaining the correct pressure within your vehicle's cooling system. This precise regulation helps raise the coolant's boiling point, preventing coolant loss and engine overheating. The cap's calibrated spring and valvetrain ensure consistent performance, protecting your engine from damage caused by pressure fluctuations
• Durable Construction, Reliable Seal: Constructed from high-quality plastic and an integrated rubber gasket, this coolant cap is durable and provides a reliable seal. The selected materials resist degradation caused by high temperatures and constant contact with coolant, ensuring long-term effectiveness. The robust construction prevents leaks and maintains the closed system pressure required for optimal cooling system operation
• Direct-Fit Design, Easy Installation: Designed as a direct replacement for the original factory part, this cap installs easily without tools. It's engineered to screw smoothly and securely seal onto the expansion tank filler neck. This plug-and-play design ensures accurate installation and immediate functionality, making repairs quick and easy, without the need for professional assistance
• Part Number 17117639020: This coolant reservoir cap is compatible with BMW models, including numerous 1-, 2-, 3-, 4-, 5-, 6-, and 7-Series models, as well as various X- and M-Series models. Be sure to compare the part number (17117639020) with your vehicle's original cap and consult the detailed fitting list provided to ensure it matches your specific BMW model and year to verify compatibility
• Product Specifications and Package Contents: This product is a single coolant expansion tank cap. It is rated for an operating pressure of 1.4 bar and matches OEM part number 17117639020 and other cross-referenced models. The package contains only the cap, which is ready to install on compatible coolant expansion tanks. All components required for this specific replacement are included in shipment