Genuine 1K0121101CF Radiator Coolant Hose - Upper

Radiator Coolant Hose for Jetta

This Genuine radiator coolant hose is a direct-fit upper hose for select Volkswagen Jetta models. It is listed for 2006 and 2007 Jetta applications, including the 2006 model from 6/05, and is identified by part number 1K0121101CF.

Key Features

• Genuine radiator coolant hose
• Upper hose position
• Fits 2006 Volkswagen Jetta, upper, from 6/05
• Fits 2007 Volkswagen Jetta, upper
• Part number 1K0121101CF for accurate ordering

Application Details

Use this upper radiator coolant hose on compatible Volkswagen Jetta cooling system layouts that match the listed fitment. The hose routes coolant between engine and radiator components, helping maintain proper circulation in the cooling system. If you are replacing a worn or leaking upper hose on a 2006 Volkswagen Jetta from 6/05 or a 2007 Volkswagen Jetta, 1K0121101CF is the correct reference to verify before purchase.

Common Problems It May Address

• Coolant seepage at the upper hose
• Cracking or hardening from heat cycling
• Soft spots or swelling in the hose body
• Loss of coolant from a damaged hose connection
• Overheating caused by restricted coolant flow

Installation Notes

Confirm the upper hose routing and connection points against the original part before installation. Drain coolant as needed, inspect adjoining clamps and fittings, and replace any worn sealing surfaces during service. After installation, refill the cooling system and check for leaks with the engine at operating temperature.

Quality Assurance

This Genuine part is identified by OEM-style part number 1K0121101CF and is cataloged for the listed Volkswagen Jetta applications.