Details
- Thickness [mm]
- 1,3 mm
- Diameter [mm]
- 105,6 mm
- Repair Grade
- Grade C
- Gasket Design
- 0
Compare 1 brand — check fitment and order online
OE part number 12676859 is a Cylinder head seal compatible with CHEVROLET, GMC and other makes. Available from 1 brands, priced from £56.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Original installation position for OE 12676859. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 12676859 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| CHEVROLET | SILVERADO 2500 HD Crew Cab Pickup, SILVERADO 2500 HD Extended Cab Pickup, SILVERADO 2500 HD Standard Cab Pickup, SILVERADO 2500 HD Crew Cab Pickup (GMT1HC) +5 |
Products matched to OE number 12676859.
| Attribute | Value |
|---|---|
| Thickness [mm] | 0,70 |
| Thickness [mm] | 1,25 |
| Width [mm] | 193 |
| Diameter [mm] | 96,5 |
| Thickness [mm] | 0,52 |
| Thickness [mm] | 1,36 |
| Thickness [mm] | 1,80 |
| Diameter [mm] | 106 |
| Width [mm] | 167 |
| Diameter [mm] | 85 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 12676859 is a manufacturer's reference code for Cylinder head seal 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 12676859.