Compare 4 brands — check fitment and order online
OE part number 173097 is a Coolant Flange compatible with AUDI, CITROËN and other makes. Available from 4 brands, priced from £7.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Coolant Flange OE 173097 prices range from £7.99 to £9.99, with 4 brands offering compatible parts.
Original installation position for OE 173097. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 173097 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| AUDI | A4 B8 (8K2), A4 B8 Avant (8K5), A5 (8T3), A5 Convertible (8F7) +2 |
| VW | TRANSPORTER T5 Bus (7HB, 7HJ, 7EB, 7EJ), TRANSPORTER T5 Van (7HA, 7HH, 7EA, 7EH), TRANSPORTER T6 / CARAVELLE T6 Bus (SGB, SGJ, SHB, SHJ), TRANSPORTER T6 Van (SGA, SGH, SHA, SHH) |
Choose a brand to see their compatible parts for OE 173097.
Products matched to OE number 173097.
| Attribute | Value |
|---|---|
| Weight [g] | 50 |
| Diameter 2 [mm] | 32 |
| Opening Temperature [°C] | 92 |
| Weight [kg] | 0,12 |
| Cooling Hose | Connection Line |
| Diameter 3 [mm] | 54 |
| Diameter 4 [mm] | 28 |
| Fits thermostat with opening temperature [°C] | 101 |
| Fits thermostat with opening temperature [°C] | 103 |
| for OE number | 037121121A |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 173097 is a manufacturer's reference code for Coolant Flange used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 4 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 173097.