Details
- Electrode Gap [mm]
- 0,8 mm
- Connector type
- Solid SAE
- Diameter [mm]
- 14 mm
- Thread Size
- M14x1.25
Compare 1 brand — check fitment and order online
OE part number MS851773 is a Spark Plug compatible with ALPINA, ALPINE and other makes. Available from 1 brands, priced from £15.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Original installation position for OE MS851773. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE MS851773 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| AUDI | A4 B8 (8K2), A4 B8 Avant (8K5), COUPE B3 (89, 8B3), A5 (8T3) +1 |
| PORSCHE | 911 (993), 911 Convertible (993), 911 (997), 911 Convertible (997) |
| LOTUS | EXIGE (SCC) |
Products matched to OE number MS851773.
| Attribute | Value |
|---|---|
| Projection [mm] | 0,8 |
| Spark Position [mm] | 2,4 |
| Gross Weight [g] | 55 |
| Plug Type ID | Nickel |
| Thread Length [mm] | 12,7 |
| Plug Type ID | Standard |
| Resistor from [kOhm] | 0,0 |
| Resistor to [kOhm] | 0,0 |
| Spanner Size | 20,6 |
| Spark Plug | 19 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number MS851773 is a manufacturer's reference code for Spark Plug used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 1 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 MS851773.