Vaico V10-9708 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Passat

Vaico V10-9708 is an engine coolant thermostat housing for the 2004-2005 Volkswagen Passat. Built to match the listed dimensions, it supports a direct-fit cooling system repair where the thermostat housing must align correctly with the engine coolant passages.

Key Features

• Engine coolant thermostat housing for Volkswagen Passat cooling system service
• Dimensions: 165 mm length, 70 mm width, 39 mm height
• Compact housing profile for proper fit within the thermostat and housing assembly area
• Vaico VAICO part number V10-9708 for catalog matching and service lookup
• Cross-references OE and aftermarket numbers including 038 121 121 B and 31477

Detailed Description

This Vaico engine coolant thermostat housing is specified for 2004-2005 Volkswagen Passat applications and is identified by part number V10-9708. The housing dimensions measure 165 mm in length, 70 mm in width, and 39 mm in height, which helps confirm physical fit during cooling system repair. For technicians and parts buyers searching for a Volkswagen Passat thermostat housing, V10-9708 provides a direct reference point for the correct engine coolant housing assembly.

VAICO product line parts are cataloged for European vehicle service applications, and this thermostat housing follows that focused fitment approach. If you are replacing a worn or damaged coolant housing on a Volkswagen Passat, V10-9708 is the part number to verify against the existing unit and service records.

This part cross-references 038 121 121 B and 31477 for the same application.

Common Repair Uses

• Cracked or leaking thermostat housing
• Coolant seepage around the housing flange or connection points
• Cooling system service on a 2004-2005 Volkswagen Passat
• Replacement of a housing with incorrect dimensions or OE number mismatch
• Restoration of proper thermostat housing sealing in the coolant circuit

Installation Notes and Tips

Verify the existing part number, mounting dimensions, and hose connection layout before installation. Clean the mating surfaces thoroughly and inspect adjacent coolant hoses, seals, and clamps for wear before reassembly. After installation, refill and bleed the cooling system according to Volkswagen service procedures to help prevent trapped air.

Quality Assurance

Vaico parts are cataloged for European vehicle applications and identified with clear OE-style reference data for parts matching. Confirm V10-9708 against the vehicle’s existing thermostat housing and service information before ordering.