Metzger 8K0-121-081 BK Engine Coolant Overflow Expansion Tank Hose

The Metzger 8K0-121-081 BK is a direct-fit replacement coolant overflow hose designed to restore the integrity of the engine cooling system. This hard coolant pipe connects the coolant expansion tank to the hard water pipes and the small upper port on the radiator, ensuring proper coolant flow and pressurization throughout the system.

Constructed from durable plastic, this hose measures approximately 580mm (22.8 in) in length with a 7mm inner diameter at the secondary port. Over time, original plastic coolant pipes become brittle from prolonged heat cycling and hot coolant exposure, leading to cracking and potential coolant loss. Replacing a failing hose promptly prevents overheating and more costly engine damage.

Key Features:

• Direct OEM-equivalent replacement coolant overflow/expansion tank hose
• Durable plastic construction engineered for heat and coolant resistance
• Hose length: approximately 580mm (22.8 in)
• Secondary inner diameter: 7mm
• Black finish matching original equipment appearance
• Sold as a single piece

OEM Cross-Reference: 8K0-121-081-BK / 8K0121081BK / 8K0 121 081 BK

Also referenced as: Water Hose, Coolant Hose, Overflow Hose, Expansion Tank Pipe, Coolant Pipe, Breather Tube. Metzger part number 4010461. EAN: 4062101183255.