Product Description
The BILSTEIN 25-311785 5160 Series Shock Absorber is a premium rear suspension upgrade designed for 2005-2016 Ford F250 and F350 Super Duty 4WD trucks running a 0–2.5 inch lift. Built for serious towing, hauling, and off-road performance, this shock delivers exceptional control, cooling, and durability in demanding conditions.
Engineered with Bilstein’s 46mm monotube gas pressure design and paired with a remote reservoir, the 5160 Series significantly increases oil capacity and heat dissipation. This allows for consistent damping performance even during extended off-road use, heavy towing, or rough terrain driving.
The velocity-sensitive digressive piston automatically adjusts to changing road conditions, providing a smooth ride on pavement while maintaining maximum stability off-road. Designed specifically for lifted Super Duty trucks, this shock ensures optimal performance without compromising comfort.
Key Benefits:
- Remote reservoir for improved cooling and performance
- Fade-free damping under heavy loads and off-road conditions
- Enhanced ride quality, control, and stability
- Optimized for leveled and lifted Ford Super Duty trucks
- Direct-fit installation with application-specific tuning
FITMENT:
- 2005-2016 Ford F250 Super Duty 4WD (Rear)
- 2005-2016 Ford F350 Super Duty 4WD (Rear)
- Rear position only
- Designed for 0–2.5" lifted suspension systems
- Will NOT fit stock height applications optimally
- Sold individually; replacing both rear shocks is recommended
FAQ
Is this a 5160 Series shock with a reservoir?
Yes, the 25-311785 is part of the Bilstein B8 5160 Series and includes a remote reservoir for improved cooling and performance.
Will this fit stock height trucks?
It may physically install, but it is specifically tuned for trucks with 0–2.5 inches of lift for optimal performance.
What is the advantage of the remote reservoir?
The reservoir increases oil capacity, reduces heat buildup, and ensures consistent performance during heavy-duty use and off-road driving.
Is installation bolt-on?
Yes, this is a direct-fit rear shock designed for easy installation on compatible Super Duty trucks.
Are these sold individually?
Yes, shocks are sold individually. For best results, replace both rear shocks together.
Specifications for BILSTEIN 25-311785
| Category | Details |
|---|---|
| Brand | Bilstein |
| Part Number | 25-311785 |
| Series | B8 5160 Series |
| Product Type | Remote Reservoir Shock Absorber |
| UPC | 00651860898933 |
| GTIN | 00651860898933 |
| Position | Rear |
| Drive Type | 4WD |
| Vehicle Fitment | 2005-2016 Ford F250 / F350 Super Duty |
| Lift Compatibility | 0–2.5 Inch Lift |
| Shock Design | 46mm Monotube Gas Pressure |
| Reservoir | Yes – Remote Reservoir |
| Adjustability | Non-Adjustable |
| Finish | Zinc Plated with Protective Coating |
| Extended Length | 30.91 in |
| Collapsed Length | 18.78 in |
| Travel Length | 12.13 in |
| Upper Mount Type | Eyelet |
| Lower Mount Type | Eyelet |
| Boot Included | No |
| Mounting Hardware Included | Yes |
| Shipping Weight | Approx. 7.5 lbs |
| Warranty | Bilstein Limited Lifetime Warranty |
| California Prop 65 | WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. Visit www.P65Warnings.ca.gov |
