Metal Upgrade Options for Cooling System Components

For select coolant-related components, Rein offers both OE-style plastic versions and upgraded metal alternatives. Each option is engineered to meet OE specifications for fit and function. The availability of both materials supports flexibility in service approach, vehicle use, and operating conditions.

Plastic or Metal: Why Offer Both?

Plastic remains a standard material across many OE cooling systems due to its precision molding, weight advantages, and cost efficiency. In some environments, however, a metal version may offer greater resistance to thermal cycling, mechanical stress, or chemical exposure.

Rein supports both construction types in many parts to accommodate different application needs.

Part Description	Make	Standard Part Number	Upgrade Part Number
Coolant Hose - Cylinder Head to Thermostat	BMW	CHE0465	CHU0465 Includes upgraded metal connector
Coolant Hose - Thermostat to Cylinder Head	BMW	CHE0457	CHU0457 Includes upgraded metal connector
Coolant Hose - Thermostat to Cylinder Head	Audi VW	CHE0484	CHU0484 Includes upgraded metal connector
Coolant Hose - Thermostat to Cylinder Head	BMW	CHE0542	CHU0542 Includes upgraded metal connector
Coolant Hose - Thermostat to Cylinder Head	BMW	CHE0546	CHU0546 Includes upgraded metal connector
Coolant Hose - Thermostat to Cylinder Head	BMW	CHE0566	CHU0566 Includes upgraded metal connector
Coolant Hose Connector	BMW	CHP0718	CHU0718 Upgraded aluminum construction
Coolant Pipe - Auxiliary Water Pump Hose to Expansion Tank Hose	Audi VW	CHP0681	CHU0681 Upgraded full steel construction
Coolant Pipe - Water Pump to Cylinder Head	Audi VW	CHP0680	CHU0680 Upgraded aluminum construction
Coolant Pipe - Water Pump to Heater Hose	Audi	CHP0774	CHU0774 Upgraded aluminum construction
Coolant Pipe - Water Pump to Thermostat	Mini	CHP0589	CHU0589 Upgraded aluminum construction
Electric Water Pump Replacement Kit	BMW	WPS0505	WPU0505 Upgraded water pump with full aluminum housing
Electric Water Pump Replacement Kit	BMW	WPS0507	WPU0507 Upgraded water pump with full aluminum housing
Water Pump Installation Kit	Audi VW	WPL0016	WPU0016 Upgraded water pump with full aluminum housing

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