URO 17132284600 Engine Coolant Expansion Tank / Coolant Reservoir

The URO 17132284600 is an aftermarket replacement engine coolant expansion tank, also commonly referred to as a coolant reservoir or coolant overflow tank. Engineered to meet OEM specifications, this expansion tank is a direct replacement for BMW part number 17-13-2-284-600, designed for BMW S55-powered M-series models.

The expansion tank serves a critical role in the engine cooling system. It holds excess coolant and accommodates the natural expansion and contraction of coolant as it cycles through operating temperatures. Positioned as the highest point in the cooling system, it also allows trapped air to escape while preventing air from re-entering the system when coolant is added.

Key Features:

• Direct aftermarket replacement for OEM BMW part number 17132284600 (17-13-2-284-600)
• Designed for the S55 3.0L turbocharged inline-six engine platform
• Functions as both an expansion tank and coolant reservoir
• Allows for thermal expansion and contraction of coolant at operating temperatures
• Serves as the primary coolant fill and bleed point for the cooling system
• Helps prevent overheating by maintaining proper coolant levels and pressure
• URO Parts brand — a leading supplier of European aftermarket replacement components

URO Parts is a brand of A.P.A. Industries focused on providing high-quality replacement parts for European vehicles, built to fill the gap between cheap generic parts and expensive OEM pricing. Replacing a cracked, leaking, or pressure-compromised expansion tank is essential to maintaining proper cooling system function and preventing engine overheating.