Water Pump Service Kit

Product Details

Engineered to deliver factory-level reliability on the track or the street, the Rein Electric Water Pump Service Kit is an essential maintenance upgrade for your BMW. The electric cooling systems found in N51 and N52 engines are critical to engine performance, yet the original factory components—specifically the electric water pump, thermostat, and plastic coolant line connections—are high-failure items that can compromise your engine’s health.

This Rein kit is designed to OE specifications to match BMW’s exact performance and fitment standards. By replacing the failure-prone plastic hose connectors with reinforced metal flanges, this package directly remedies common structural weak points while restoring proper coolant flow throughout the engine block and radiator. Ideal as a preventative service item or a comprehensive repair, installing this full kit ensures your cooling system remains dependable, eliminating repeat teardowns and keeping your vehicle performing at its peak.

Key Features

• Precision-engineered OE replacement components that match original factory dimensions and specifications.

• Eliminates vulnerable plastic coolant hose connections by utilizing upgraded metal flange designs.

• Full overhaul package prevents labor duplication by replacing all failure-prone cooling components at once.

• Restores proper rate of coolant circulation to safeguard performance under high thermal loads.

• Direct bolt-on fitment requiring no modification to factory routing or mount points.

Specifications

• Part Number: WPS0503

• Brand: Rein / CRP Automotive

• Kit Type: Engine Cooling System Water Pump & Thermostat Kit

• Water Pump Operation: Electric (OE Specs)

• Hose Construction: OE-grade rubber with upgraded metal connector flange

• Fasteners: Replacement mounting bolts included

• Recommended Service Interval: 80,000 miles

• Application: BMW E82 128i, E90/E91/E92/E93 328i/328xi (N51/N52 engines)

• Warranty: 2 Years / 24,000 Miles

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