Product Details
Lifting or leveling a 2011-2026 GMC Sierra 3500 HD (GMT900/K2XX/T1XX) changes what the dampers have to do. The Bilstein B8 shocks are built for that taller stance and stay composed on rough ground.
The monotube design is what sets Bilstein apart. A single high-pressure gas chamber keeps the oil from aerating, so the damping stays consistent on a rough road instead of fading as the unit heats up.
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 3500 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 |