Vaico V10-4678 Engine Coolant Hose

Engine Coolant Hose for Volkswagen Cooling Service

The VAICO V10-4678 engine coolant hose is an OE-style replacement for select Volkswagen cooling system applications. Built from rubber with textile reinforcement, it is specified for coolant routing between the oil cooler, distributor, and coolant pipe on covered Volkswagen Golf, Golf City, and Jetta models.

VAICO’s VAICO line focuses on application-specific replacement parts that follow original equipment dimensions and routing requirements. This hose measures 265 mm in length, 177 mm in width, and 68 mm in height, helping support a proper fit in the engine bay.

Key Features

• Engine coolant hose for Volkswagen cooling system service
• Rubber construction with textile reinforcement for added strength
• OE-style dimensions: 265 mm length, 177 mm width, 68 mm height
• Designed for oil cooler to distributor to coolant pipe routing
• VAICO V10-4678 part number for direct identification
• Cross-reference: Davico Mfg 19258

Detailed Description

This coolant hose is built for vehicles using OE number 1J0121086BG and is listed for 1999-2007 Volkswagen applications, including Golf, Golf City, and Jetta models. The reinforced rubber construction is selected for coolant transfer service where flexibility, routing accuracy, and resistance to engine-bay conditions matter. If you are replacing a worn or leaking Volkswagen Golf coolant hose or servicing a Jetta engine oil cooler hose connection, the VAICO V10-4678 provides the correct application-specific fitment.

Part number V10-4678 is also a useful reference when searching for a Volkswagen Golf City coolant hose, Volkswagen Golf coolant hose, or Volkswagen Jetta coolant hose tied to OE number 1J0121086BG.

Vehicle Fitment

• Fits 2007 Volkswagen Golf City, N/A — Grade: OE; Oil cooler To Distributor To Coolant pipe; With OE No. 1J0121086BG; VAICO
• Fits 2000-2006 Volkswagen Golf, N/A — Grade: OE; Oil cooler To Distributor To Coolant pipe; With OE No. 1J0121086BG; VAICO
• Fits 2000-2005 Volkswagen Jetta, N/A — Grade: OE; Oil cooler To Distributor To Coolant pipe; With OE No. 1J0121086BG; VAICO
• Fits 2004 Volkswagen Jetta, N/A — Grade: OE; Engine Oil Cooler; Assembly; Incl. Inlet & Outlet Hoses; With OE No. 1J0121086BG; VAICO
• Fits 2001-2002 Volkswagen Jetta, N/A — Grade: OE; Engine Oil Cooler; Assembly; Incl. Inlet & Outlet Hoses; With OE No. 1J0121086BG; VAICO
• Fits 1999 Volkswagen Jetta, N/A — Grade: OE; Oil cooler To Distributor To Coolant pipe; From VIN 9M-X-000 001; With OE No. 1J0121086BG; VAICO

Installation Notes and Tips

• Verify OE number 1J0121086BG before ordering.
• Inspect mating pipes, clamps, and sealing surfaces for wear or corrosion before installation.
• Confirm hose routing matches the original layout to avoid kinks or tension.
• Check surrounding components for coolant residue that may indicate a related leak source.

Quality Assurance

VAICO supplies OE-style replacement parts engineered to match original application requirements. The V10-4678 is built to the listed dimensions and material specification for consistent fitment in covered Volkswagen cooling system applications.