LEIMO KPARTS Radiator Coolant Overflow Reservoir Tank – OEM Fit for VW Jetta, Golf, Passat, Beetle & Audi A3 (Replaces 1K0121407A)

Overview

The LEIMO KPARTS Radiator Coolant Overflow Reservoir Expansion Tank is designed to replace the factory part while matching the look and function of an original component. It is compatible with a broad range of VW and Audi models and uses the OE-style fit number 1K0121407A, ensuring a reliable expansion reservoir for your cooling system.

Engineered to withstand heat and vibration, this reservoir helps maintain coolant levels and supports smooth engine operation. It is built to integrate with your vehicle’s cooling circuit, offering a practical upgrade that can feel like an original replacement.

Key Features

• FITS compatibility for 2009-2012 VW CC, 2007-2012 VW Eos, 2010-2012 VW Golf, 2005-2012 VW Jetta, 2006-2010 VW Passat, 2006-2009 VW Rabbit, 2009-2012 VW Tiguan, 2012 VW Beetle, 2012 VW Passat, 2006-2013 Audi A3 and A3 Quattro, 2008-2009 Audi TT, 2008-2011 Audi TT Quattro
• OE FIT EXACTLY and functions like the original part
• COOLANT TANK FUNCTION designed to handle heat and vibration, helping reduce coolant loss, minimize air ingress, and curb oxidative wear
• REPLACE OE NUMBER 1K0121407A with compatibility to other part numbers such as 603-253, EPK0030, VW3014105, VW3014104, FRT1103C, EPT0030, VW3014103
• BUY WITH CONFIDENCE with a 12 months unlimited mileage warranty

What You Get

• 1 x Coolant Reservoir Tank
• Cap and Sensor included for straightforward replacement

Why This Matters

Maintaining proper coolant levels helps protect the cooling system from leaks and air pockets. This reservoir is designed to support a reliable expansion pathway, helping prevent sudden drops in coolant and reducing maintenance surprises.

Quality testing and material integrity are prioritized to ensure trouble-free installation and dependable performance. The design aims for a leak-free experience and robust operation under typical driving conditions.

Compatibility and Use

Whether you are replacing a worn reservoir or performing a routine upgrade, this unit is intended to fit the listed VW and Audi models with minimal fuss. Always verify your OEM part number and vehicle compatibility before purchase to ensure a precise match for your car’s cooling system.