OEM numbers
GMC 55490487 · CHEVROLET 55490487 · GENERAL MOTORS 55490487 · PONTIAC 55490487 · BUICK 55490487 · CADILLAC 55490487 · OLDSMOBILE 55490487 · SATURN 55490487 · HUMMER 55490487 · GMC 55508545 · CHEVROLET 55508545 · GENERAL MOTORS 55508545 · PONTIAC 55508545 · BUICK 55508545 · CADILLAC 55508545 · OLDSMOBILE 55508545 · SATURN 55508545 · HUMMER 55508545 · GMC 55512640 · CHEVROLET 55512640 · GENERAL MOTORS 55512640 · PONTIAC 55512640 · BUICK 55512640 · CADILLAC 55512640 · OLDSMOBILE 55512640 · SATURN 55512640 · HUMMER 55512640
Alternatives and compatible parts
MEC-DIESEL 876610 · MEC-DIESEL 876610 · WILMINK GROUP WG2200748 · MEC-DIESEL 876610 · GMC 55490487 · CHEVROLET 55490487 · GENERAL MOTORS 55490487 · PONTIAC 55490487 · BUICK 55490487 · CADILLAC 55490487 · OLDSMOBILE 55490487 · SATURN 55490487 · HUMMER 55490487 · GMC 55508545 · CHEVROLET 55508545 · GENERAL MOTORS 55508545 · PONTIAC 55508545 · BUICK 55508545 · CADILLAC 55508545 · OLDSMOBILE 55508545 · SATURN 55508545 · HUMMER 55508545 · GMC 55512640 · CHEVROLET 55512640 · GENERAL MOTORS 55512640 · PONTIAC 55512640 · BUICK 55512640 · CADILLAC 55512640 · OLDSMOBILE 55512640 · SATURN 55512640 · HUMMER 55512640
Compatible vehicles
CADILLAC: ESCALADE (GMT1XL) · CHEVROLET: SILVERADO 1500 Crew Cab Pickup (GMT1CC), SILVERADO 1500 Extended Cab Pickup (GMT1EC), SUBURBAN (GMT1YC), TAHOE (GMT1UC) · GMC: SIERRA 1500 Crew Cab Pickup, SIERRA 1500 Extended Cab Pickup, YUKON (GMT1UG), YUKON XL (GMT1YG)
Gasket, cylinder head ELRING 589.121
| Product Code | 589.121 |
| Brand | ELRING |
| Product group | Gasket, cylinder head |
| Country of origin |  United Kingdom |
| Weight | 0.746 kg |
| Thickness / Strength (mm) | 1,3 |
| Diameter [mm] | 85,3 |
| Number of Notches / Holes | 1 |
| Installation Thickness (mm) | 1,3 |
| Seal Type | Metall-Kihiline-Tihend |
| Piston Stroke from [mm] | 0,434 |
| Piston Stroke up to [mm] | 0,549 |
| Number of Layers | 6 |
| GMC | 55490487 |
| CHEVROLET | 55490487 |
| GENERAL MOTORS | 55490487 |
| PONTIAC | 55490487 |
| BUICK | 55490487 |
| CADILLAC | 55490487 |
| OLDSMOBILE | 55490487 |
| SATURN | 55490487 |
| HUMMER | 55490487 |
| GMC | 55508545 |
| CHEVROLET | 55508545 |
| GENERAL MOTORS | 55508545 |
| PONTIAC | 55508545 |
| BUICK | 55508545 |
| CADILLAC | 55508545 |
| OLDSMOBILE | 55508545 |
| SATURN | 55508545 |
| HUMMER | 55508545 |
| GMC | 55512640 |
| CHEVROLET | 55512640 |
| GENERAL MOTORS | 55512640 |
| PONTIAC | 55512640 |
| BUICK | 55512640 |
| CADILLAC | 55512640 |
| OLDSMOBILE | 55512640 |
| SATURN | 55512640 |
| HUMMER | 55512640 |