





$15.00
The 06H121132H Aluminum Coolant Flange is an , OE‑style replacement for select Volkswagen and Audi applications. This coolant outlet mounts to the engine and provides a secure connection point for the main coolant hose along with an auxiliary hose/bleeder port (application‑dependent), helping maintain proper coolant routing, system pressure, and stable operating temperature.
Factory plastic coolant flanges are a common failure point due to constant heat cycling and cooling system pressure. Over time they can warp, crack, or leak at the sealing surface—causing coolant loss, low‑coolant warnings, and overheating risk. Upgrading to this aluminum 06H121132H flange improves durability and helps reduce repeat leaks compared to plastic housings.
Used on select VW/Audi models that specify coolant flange/water outlet part number 06H121132H.
(Fitment varies by engine code and model year—confirm by VIN/parts catalog and match the hose/port layout.)
| Weight | 0.50 lbs |
|---|---|
| Dimensions | 6.0 × 5.0 × 4.0 in |
| Year | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 2009-2016 | Audi | A4 | 3.0L V6 | |
| 2010-2014 | Audi | A5 | ||
| 2012-2015 | Audi | A6 | ||
| 2011-2017 | Audi | Q5 | ||
| 2013-2016 | Audi | Allroad |


The 6Q0 122 291F is a Febi Bilstein OE-quality lower radiator coolant hose flange for Volkswagen and Audi Mk4-platform models — including the Golf, Jetta, Beetle, Audi A3, and TT across 1.8T, 2.0L, 1.9 TDI, and 2.8 VR6 applications (1998–2010). This precision-molded flange provides the sealed junction for the lower coolant hose and features an integrated coolant drain port, making it a direct-fit replacement to restore leak-free cooling system operation with no modifications required.


The 5Q0 122 291AC is the OE right-side coolant bypass line adapter (T-piece) used on select 2018–2023 Volkswagen and Audi MQB-platform vehicles equipped with a 2.0L engine and manual transmission. Positioned on the passenger side of the cooling circuit, it serves as the outlet adapter for the cooling system bypass line — a distinct application from the central water pump connectors used on the same platform. Always confirm fitment by VIN before ordering, as this part is transmission-specific.

The 5N0 122 291 is an OE-style upper radiator coolant hose adapter by Burgaflex, engineered for the VW Tiguan Mk1 (5N-chassis) equipped with the 2.0L EA113/EA888 engine. Positioned at the front upper radiator hose junction, this coupling piece — supplied with its C-clip and seal — provides a secure, leak-free connection between the upper coolant hose and the radiator inlet. It serves as a cost-effective alternative to the Genuine VW part while maintaining OE-style fit and performance. Always confirm fitment by VIN before ordering.

The 5N0 122 291C is an OE-style lower radiator coolant hose adapter by VIKA, engineered for the VW Tiguan Mk1 (5N-chassis) with the 2.0L four-cylinder engine. Positioned at the front lower radiator hose junction, this coupling piece connects the lower coolant hose to the radiator outlet port, completing the primary cooling circuit return path. It serves as a cost-effective alternative to the Genuine VW lower adapter. Always confirm fitment by VIN before ordering.


The BG Water Pump Thermostat 04E 121 600BD is an OEM-spec integrated cooling module for select Volkswagen and Audi EA211 1.2T and 1.4T TSI/TFSI engines. Direct-fit with no modifications required.