---
type: product
part_number: "6Q0121407D"
title: "Coolant Reservoir"
category: "Cooling > Header & Overflow Tank"
language: en
canonical: "https://catalog.polo.blue/6Q0121407D/"
translations:
  pl: "https://catalog.polo.blue/pl/6Q0121407D/"
  de: "https://catalog.polo.blue/de/6Q0121407D/"
updated: 2025-11-04
---

# Coolant Reservoir

> Coolant expansion tank with integrated level contactor for Polo 9N1, 9N3, 6R and 6C models

- Part number: 6Q0121407D
- Category: Cooling > Header & Overflow Tank
- Web page: https://catalog.polo.blue/6Q0121407D/

## Specification

- Replacement numbers: 6Q0121407 (>> 01.03.2004), 6Q0121407A (>> 01.09.2007), 6Q0121407B (>> 01.10.2019), 6RU121407 (>> 01.07.2015)

## Description

Coolant expansion tank with integrated level contactor for Polo 9N1, 9N3, 6R and 6C models

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