Ensure optimal engine cooling performance with this high-quality Coolant Expansion Tank, designed as a direct replacement for the original part with OEM reference number 17138614293. Expertly crafted to fit BMW 5 Series models F10 and F11, including 520i and 528i, this coolant recovery tank is an essential component for maintaining your vehicle’s cooling system efficiency. Key Features: · Direct Replacement: Precisely engineered to replace broken or worn-out coolant expansion tanks, ensuring perfect fit and reliable function for BMW 5 Series F10, F11, 520i, and 528i models. · High-Quality Plastic Construction: Made from durable, wear-resistant, and high-temperature resistant plastic, this expansion tank offers long-lasting performance under demanding engine conditions. · Essential Cooling System Component: The coolant recovery tank stores excess coolant and pressure when the radiator heats up, maintaining proper coolant levels and improving radiator efficiency to prevent overheating. · Leak Detection Compatibility: Compatible with pressure testers to identify small, hard-to-detect leaks in the cooling system, helping you maintain system integrity and avoid costly repairs. · Prevents Cooling System Failure: Timely replacement of a damaged expansion tank helps prevent catastrophic cooling system failures, protecting your engine from overheating and damage. Specifications: · Item Type: Coolant Expansion Tank · Material: Plastic · OEM Reference Number: 17138614293 · Fitment: BMW 5 Series F10, F11, 520i, 528i Package Includes: · 1 x Coolant Expansion Tank Upgrade your vehicle’s cooling system with this reliable and durable Coolant Expansion Tank, designed to provide a perfect fit and long service life. Maintain your engine’s optimal temperature and protect your investment with this essential replacement part.