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Bilstein 24-285681 Suspension Shock Absorber - Rear
Bilstein B8 5100 Rear Shock for Ram 2500
The Bilstein B8 5100 shock absorber, part number 24-285681, is a direct-fit rear suspension upgrade for lifted Ram 2500 trucks without air leveling suspension. Its monotube construction and velocity-sensitive digressive piston are engineered to deliver consistent damping response across changing road conditions.
Built for 2014-2025 Ram 2500 rear applications, this Bilstein shock absorber is tuned for the specific vehicle fitment to improve ride control, handling stability, and comfort. The zinc-plated finish and black bellows boot add durability for daily driving and work-truck use.
Key Features
- Fits 2014-2025 Ram 2500, rear, without air leveling suspension
- Bilstein B8 5100 series shock absorber
- Part number 24-285681
- Monotube internal design for consistent damping response
- Velocity-sensitive digressive piston for changing road conditions
- Non-adjustable damping
- Smooth body, non-coilover design
- Zinc-plated finish for added corrosion resistance
- Black bellows boot included
- Lower mount: eye 14.4mm; upper mount: stem
Product Details
The Bilstein B8 5100 line is focused on direct-fit suspension shock absorbers for lifted trucks and SUVs. For the Ram 2500 rear shock application, the design uses a monotube body with a 46mm internal diameter and application-specific valving to maintain controlled suspension movement. The result is a rear shock absorber that supports more predictable handling and a more settled ride under load or on uneven pavement. If you are searching for a rear shock for a 2014-2025 Ram 2500 without air leveling suspension, part number 24-285681 is the correct Bilstein B8 5100 fitment.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues It Can Address
- Excessive rear bounce after bumps or dips
- Reduced control from worn factory rear shocks
- Unstable ride quality on lifted Ram 2500 trucks
- Harsh or inconsistent damping over changing road surfaces
- Rear suspension feel that no longer matches the vehicle’s load demands
Installation Notes
Compatible With 2014-2025 Ram 2500 rear suspension, without air leveling suspension. Verify collapsed length, extended length, and mount style before installation: 16.75 in collapsed length, 26.71 in extended length, eye lower mount, and stem upper mount. Confirm the vehicle is equipped for the B8 5100 rear shock application before ordering.
Quality Assurance
Bilstein designs the B8 5100 series as a tuned, application-specific shock absorber line for lifted truck and SUV suspension setups. The monotube construction and digressive piston design are selected to provide consistent performance and improved ride control in the intended Ram 2500 application.
| Brand | Bilstein |
| Part Number | 24-285681 |
| Position | B8 5100, Rear |
| Adjustable Damping | Non-adjustable |
| Body Design | Smooth body (non-coilover) |
| Body Diameter (ID) | 46mm |
| Boot Included | Black bellows |
| Collapsed Length (IN) | 16.75 |
| Collapsed Length (MM) | 425.5 |
| Extended Length (IN) | 26.71 |
| Extended Length (MM) | 678.5 |
| Finish | Zinc plated |
| Internal Design | Monotube |
| Lower Mount Type | Eye 14.4mm |
| Reservoir | No |
| Series | B8 5100 |
| Title | Bilstein shock absorbers |
| Upper Mount Type | Stem |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Submodel | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2025 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2024 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2023 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2022 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2021 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2020 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2019 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2018 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2017 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2016 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2015 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
| 2014 | Ram | 2500 | Tradesman | 4WD | Rear | Without Air Leveling Suspension; B8 5100 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.