Vaico V20-2346 Engine Coolant Hose

BMW Engine Coolant Hose for Charge Air Cooling

This Vaico engine coolant hose routes coolant from the expansion tank to the water pump in BMW charge air cooling systems. Built for the specified OE application, it supports proper coolant circulation in 2009-2016 BMW 750i, 750i xDrive, 750Li, and 750Li xDrive models.

Key Features

• Cooling hose from expansion tank to water pump
• OE reference: 17 12 7 591 512
• Length: 456 mm
• Height: 45 mm
• Width: 150 mm
• Fits BMW charge air cooling and auxiliary water pump applications
• Vaico part number V20-2346

Detailed Description

VAICO V20-2346 is an engine coolant hose made for BMW cooling-system service where the hose runs from the expansion tank to the water pump. It is specified for OE number 17 12 7 591 512 and matches the listed BMW 750i, 750i xDrive, 750Li, and 750Li xDrive applications across 2009-2016 model years. For buyers searching for a BMW 750i coolant hose, BMW 750Li coolant hose, or an OE-style replacement for charge air cooling plumbing, this part number provides a direct reference point for the correct application.

VAICO’s VAICO product line focuses on application-specific replacement parts for European vehicles, with this hose sized at 456 mm in length and packaged at 45 mm high by 150 mm wide. Part number V20-2346 is also a useful cross-reference when verifying the correct BMW cooling hose before ordering.

This part cross-references 17 12 7 591 512 and 7 591 512 for the same application.

What It Helps Fix

• Coolant leaks at the expansion tank-to-water pump hose connection
• Cracked, brittle, or swollen coolant hose material
• Loss of coolant flow in the charge air cooling circuit
• Cooling-system warning lights caused by hose failure
• Overheating concerns related to damaged auxiliary water pump plumbing

Installation Notes and Tips

Verify the OE number 17 12 7 591 512 and compare the hose routing to the removed part before installation. Confirm the vehicle’s cooling layout, especially on BMW 750i and BMW 750Li models with charge air cooling and auxiliary water pump equipment. Inspect adjoining clamps, seals, and plastic fittings for wear so the new hose can seat correctly and maintain a secure connection.

Quality Assurance

VAICO supplies application-specific replacement components for European vehicle cooling systems. V20-2346 is built to match the listed OE application for BMW 750i, 750i xDrive, 750Li, and 750Li xDrive models from 2009-2016.