4 Shocks, Front and Rear
Two Bilstein 8100 ZoneControl R fronts and two 8100 rears, all 2.65" bodies with remote reservoirs and mounts.Bilstein
8100 Front & Rear Shock Set
2019-2026 Ram 2500 4WD
$2,451.00
Estimated Delivery in 8-12 weeks
Custom Order
All Bilstein 8112 / 8100 are constantly on order, please double check with our Sales team for availability if your needs are time sensitive. Otherwise wait times can be as long as 8-12 weeks.
Bilstein
8100 Front & Rear Shock Set
2019-2026 Ram 2500 4WD
$2,451.00
Estimated Delivery in 8-12 weeks
Found it cheaper? We'll match it.
Got Questions?
Our experts are here to help!
Part Numbers & Details
Built for 2-2.5" of Front Lift
The fronts have extra down travel and need 2" to 2.5" of front lift. Bilstein recommends its B12 spring kit: 53-317315 (diesel) or 53-317322 (gas).No More Top-Out Clunk
ZoneControl R fronts add a second rebound stage near full extension, so the heavy front axle stops slamming into the end of its travel.Fixed or DSA Adjustable
DSA versions add high- and low-speed compression knobs.Bilstein Limited 2-Year Warranty
And rebuildable when it's time for service.Specifications
| Bilstein Part Number | Position | Item | Quantity |
|---|---|---|---|
| 25-302226 | Front Left | 8100 ZoneControl R | 1 |
| 25-335897 | Front Right | 8100 ZoneControl R | 1 |
| 25-302240 | Front Left | 8100 ZoneControl R DSA | 1 |
| 25-335903 | Front Right | 8100 ZoneControl R DSA | 1 |
| 25-302233 | Rear | 8100 | 2 |
| 25-302257 | Rear Left | 8100 DSA | 1 |
| 25-351927 | Rear Right | 8100 DSA | 1 |
All 2.65" OD, 60mm piston, remote reservoir.
Product Description
A Ram 2500 with a Cummins up front carries a lot of weight on a solid axle, and you feel it every time the road gets uneven: the front compresses, rebounds, and keeps going for a cycle or two after the bump is gone. Hook a trailer to it and the rear joins in. We've lived with that on our own Ram 2500 Power Wagon over six years of suspension testing. The 8100 set is Bilstein's answer to it: 60mm pistons and a remote reservoir at every corner, and a second rebound stage up front that stops the axle before it tops out. If you're looking to ramp up the speed in the desert or just hightail it to camp, these can't be beat.
What the Letters Mean
- 8100 ZoneControl R (front). 2.65" monotube with a remote reservoir and a second rebound piston near full extension. Fixed valving.
- 8100 ZoneControl R DSA (front). Same, with high- and low-speed compression knobs.
- 8100 / 8100 DSA (rear). 2.65" monotube rears with remote reservoirs; the DSA adds the compression knobs.
Choose Your Set
- Run fixed front and rear if: the truck works the same way every week.
- Run DSA front and rear if: it swaps between an empty commute and a heavy fifth wheel or gooseneck, or you drive fast on dirt.
- Run DSA front, fixed rear if: big tires and a heavy bumper are the problem and the rear is fine.
The Real Trade-Offs
- It needs front lift. 2-2.5" springs or spacers. Bilstein's B12 spring kits are the matched choice.
- No air leveling. The rears are listed for trucks without Ram's rear air suspension.
- Reservoir mounting means drilling. Two 3/8" holes in the front spring bucket support per side. Paint or rust-proof the bare steel.
- Check tire clearance. Bilstein warns that some wheel, tire, and lift combinations can interfere; the installer has to check.
Install Notes
- Fits 2019-2026 Ram 2500 4WD, gas and diesel, with 2-2.5" of front lift and without rear air leveling.
- Fronts are corner-specific (left and right are different part numbers).
- Upper stem nut: 34 ft-lb. Torque the lower bolts at ride height.
- If the factory ABS line clip is missing, zip-tie the ABS line to the hard brake line.
- Alignment and headlight aim after install.
Who Should Buy These
2019+ Ram 2500 owners with a 2-2.5" lift who tow, haul, and drive dirt, and want Bilstein control without going to a full long-travel system.
Compatibility List
| Year | Make | Model | Drive |
| 2026 | Ram | 2500 | 4WD |
| 2025 | Ram | 2500 | 4WD |
| 2024 | Ram | 2500 | 4WD |
| 2023 | Ram | 2500 | 4WD |
| 2022 | Ram | 2500 | 4WD |
| 2021 | Ram | 2500 | 4WD |
| 2020 | Ram | 2500 | 4WD |
| 2019 | Ram | 2500 | 4WD |
Shock Surplus handles Bilstein's warranty claims; if you encounter a product defect please submit a warranty claim.
View Bilstein Warranty Information
For more information: View the Shock Surplus Warranty Policy.
Shipping Info
Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.
- Applies to items like axles, leaf springs, and long-travel kits.
- No international shipping on freight items — only to U.S.-based freight forwarders.
- Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.
Contact us for an international shipping quote.
Returns & Exchanges
30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.
- No restocking fees for exchanges or gift card credit.
- 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
- Installed, damaged, or dirty parts cannot be returned.
- Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.
Return Shipping Responsibility
CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.
- Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
- Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.
Shipping cost details:
- Under 50 lbs: Discounted carrier rate
- Over 50 lbs: Discounted carrier rate + $25 oversize fee
Refunds
Refunds are issued within 5–7 business days of receiving your return.
- Funds typically post to your account in 1–3 business days depending on your payment method.
- There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
- You will receive an email once your refund is processed.
International Orders
- All international orders are final sale.
- Returns via freight forwarders only accepted if the product hasn’t left the U.S.
- Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
- We are not responsible for goods once exported outside the U.S.
Why Shock Surplus
1,000,000+ Shocks Shipped
The Premier Suspension Specialists
Authorized Dealer
Brand New - Warranty Backed
Free Shipping
Orders Over $175 - Lower 48 States
30-Day Returns
Free Exchange on Qualified Orders
INFORMATION
A Ram 2500 with a Cummins up front carries a lot of weight on a solid axle, and you feel it every time the road gets uneven: the front compresses, rebounds, and keeps going for a cycle or two after the bump is gone. Hook a trailer to it and the rear joins in. We've lived with that on our own Ram 2500 Power Wagon over six years of suspension testing. The 8100 set is Bilstein's answer to it: 60mm pistons and a remote reservoir at every corner, and a second rebound stage up front that stops the axle before it tops out. If you're looking to ramp up the speed in the desert or just hightail it to camp, these can't be beat.
What the Letters Mean
- 8100 ZoneControl R (front). 2.65" monotube with a remote reservoir and a second rebound piston near full extension. Fixed valving.
- 8100 ZoneControl R DSA (front). Same, with high- and low-speed compression knobs.
- 8100 / 8100 DSA (rear). 2.65" monotube rears with remote reservoirs; the DSA adds the compression knobs.
Choose Your Set
- Run fixed front and rear if: the truck works the same way every week.
- Run DSA front and rear if: it swaps between an empty commute and a heavy fifth wheel or gooseneck, or you drive fast on dirt.
- Run DSA front, fixed rear if: big tires and a heavy bumper are the problem and the rear is fine.
The Real Trade-Offs
- It needs front lift. 2-2.5" springs or spacers. Bilstein's B12 spring kits are the matched choice.
- No air leveling. The rears are listed for trucks without Ram's rear air suspension.
- Reservoir mounting means drilling. Two 3/8" holes in the front spring bucket support per side. Paint or rust-proof the bare steel.
- Check tire clearance. Bilstein warns that some wheel, tire, and lift combinations can interfere; the installer has to check.
Install Notes
- Fits 2019-2026 Ram 2500 4WD, gas and diesel, with 2-2.5" of front lift and without rear air leveling.
- Fronts are corner-specific (left and right are different part numbers).
- Upper stem nut: 34 ft-lb. Torque the lower bolts at ride height.
- If the factory ABS line clip is missing, zip-tie the ABS line to the hard brake line.
- Alignment and headlight aim after install.
Who Should Buy These
2019+ Ram 2500 owners with a 2-2.5" lift who tow, haul, and drive dirt, and want Bilstein control without going to a full long-travel system.
VIDEO GALLERY
CUSTOMER REVIEWS
Bilstein Upgrade
The Bilsteins were purchased to replace some worn Rough Country N3s. The installation was straightforward with no difficulties. I also replaced the steering stabilizer with the matching one from Bilstein. The overall ride improvement feels solid. It is firm but smooth.
Verified Buyer
Making the Greatest Truck Even Greater
Put these on my 2014 Tundra. Noticeable difference especially at high speed and washboard gravel. For under $1000, can't go wrong
Verified Buyer
Like a new truck.
I didn’t realize how bad my suspension was till I put the Bilsteins on. Had Ranchos and these are sooo much better. Quick shipping. Decent price. Great product.
Verified Buyer
The Expert's Opinion
"Bilstein shocks aren't always the softest ride out there, but if you want precision handling, confidence at high speeds, and rock-solid stability under load, they're the best in the game.
They're built to perform. At Shock Surplus, we back every Bilstein we sell – because we know they won't let you down"
Sean
Shock Surplus Founder
15+ years experience
Custom Build
All Bilstein 8112 / 8100 are constantly on order, please double check with our Sales team for availability if your needs are time sensitive. Otherwise wait times can be as long as 8-12 weeks.
Contact Us
Questions? We've got answers
Bilstein shocks make your vehicle respond much better than stock shocks. Are they super soft and squishy on the road? No. They give you confidence because your truck or SUV reacts exactly how you expect when you steer or brake. That’s why we say 'Confidence through Control.' If you like having more control and a sportier feel while driving, Bilstein is the right choice. But if you want the same or more comfort than the soft factory shocks, we can recommend other options
Bilstein 5100 shocks can’t be adjusted for stiffness or rebound. But on some trucks and SUVs (like the Tacoma, F-150, or Tundra), they can adjust the front ride height. This lets you reuse your stock coil springs and still lift the front of your vehicle by up to 2.5 inches, depending on the model. Always check the product details for the exact fit on your vehicle
Click the 'Select Your Vehicle' button above the 'Add to Cart' button to make sure the shocks fit your exact vehicle. If needed, the site will send you to the right shocks for your ride. If your vehicle has been lifted, use the dropdown menu to pick the correct lift height. For example, if you have a Rough Country 6-inch lift kit, choose Front 4–6" and Rear 3–4" (the rear is usually smaller than the front). Still not sure? Our sales team is happy to help.
Bilstein shocks are one of the most durable and reliable shocks manufactured here in the USA. German engineering mixed with extreme abuse testing has resulted in a shock absorber that is designed to last 100,000 miles or more. We stand behind every Bilstein shock we sell and offer an expedited warranty process for any issues surrounding your purchase from Shock Surplus.
Product Details
Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!
Part Numbers & Details
View full product specifications
Warranty
View warranty coverage
Shipping & Returns
Free shipping within the lower 48 United States
