Product Details
The Bilstein B8 shocks are built for a 2011-2026 GMC Sierra 2500 HD (GMT900/K2XX/T1XX) that has been lifted or leveled, valved for the taller ride height rather than fighting it.
Built in Germany to original-equipment standards and finished to survive road salt and grit, this is a bolt-in part with no modification required. Backed by Bilstein's limited lifetime warranty.
Features
- 46mm monotube design ensures consistent, fade-free performance in all conditions
- Self-adjusting deflective disc valving reacts immediately to surface changes enabling maximum vehicle control
- Remote reservoir increases shock oil capacity for greater heat dissipation
Specifications
| Part Number | 25-311884 |
| Part Name | Shock Absorber |
| UPC | 651860899527 |
| Vehicle | 2011-2026 GMC Sierra 2500 HD |
| Chassis Code | GMT900/K2XX/T1XX |
| Drivetrain | RWD/4WD |
| Adjustable Damping | Non-Adjustable |
| Billet Reservoir Clamp Included | Yes |
| Body Design | Smooth Body (Non-Coilover) |
| Boot Included | No |
| Collapsed Length | 13.86 in. (352mm) |
| Extended Length | 18.55 in. (471.2mm) |
| Finish | Zinc Plated |
| Internal Design | Monotube |
| Lower Mount Type | Clevis |
| Piston Diameter | 46mm |
| Vehicle Placement | Front |
| Reservoir | Yes |
| Segment | Light Truck |
| Series | B8 5160 |
| Shaft Diameter | 14mm |
| Spring Seat Included | No |
| Stroke/Travel Length | 4.69 in. (119.1mm) |
| Upper Mount Type | Crossbar |
| Notes | Fits Vehicles With 1.5" Front Lift |