The B8 8100 (ZoneControl R DSA) reservoir shock absorber is an adjustable large bore 60mm (2.65" OD) direct fit solution for lifted trucks and SUVs. Click adjuster knobs allow easy and precise Dual Speed Adjustment of both low and high speed compression to tailor your ride to any surface. Each B8 8100 (DSA) offers a unique remote or piggyback reservoir solution for an easy, hassle free installation. These shock absorbers feature a monotube design for consistent fade free performance and utilize velocity sensitive digressive valve settings which are tuned for each specific application. The large 60mm piston design offers more comfort and control in all driving conditions.
Features
- The B8 8100 (ZoneControl R DSA) reservoir shock absorber is an adjustable large bore 60mm (2.65" OD) direct fit solution for lifted trucks and SUVs
- Click adjuster knobs allow easy and precise Dual Speed Adjustment of both low and high speed compression to tailor your ride to any surface
Listed for 2 vehicles: the fitment table on this page shows each year, make and model it fits.
Bilstein B8 8100 (ZoneControl R DSA) 05-26 Ford F-250/F-350 Super Duty Front Shock Absorber
Vehicle fitment
Estimated fitment — verify before purchase| Years | Make | Model |
|---|---|---|
| 2005–2026 | Ford | F-250 Super Duty |
| 2005–2026 | Ford | F-350 Super Duty |
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Bilstein |
| Part number | BIL25-344790 |
| Category | Suspension & Lift |

Worth adding
Useful in any truck — ships separately in its own box.
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