Bilstein 2005-2026 Ford F-250 / F-350 Super Duty 4WD B8 8100 (ZoneControl R) Front Shock (25-299304)

Bilstein B8 8100 (ZoneControl R) reservoir shock absorbers are a direct fit, position sensitive solution designed for light trucks and SUVs. ZoneControl R is a revolutionary technology delivering position sensitive rebound damping which eliminates harsh suspension top-out events and the need for an external limit strap. The system incorporates a double piston design, offering 2 stages of rebound valving and is supplied with a remote reservoir for increased cooling and an accompanied, bolt-on anodized reservoir chassis mount where applicable. Bilstein B8 8100 (ZoneControl R) position sensitive shocks will offer unparalleled ride comfort during every day driving combined with maximum control over large suspension inputs.

Applications (per Bilstein)

• 2005-2026 Ford F-250 / F-350 Super Duty 4WD Front (official trims: Cabelas, FX4, Harley-Davidson Edition, King Ranch, Lariat, Limited, Platinum, XL, XLT). Official notes: Fits Vehicles With 2-2.5" Front Lift;Requires wheels with maximum 4.75" backspacing.

Fitment note (per Bilstein): Official Bilstein applications include 2005-2026 Ford F-250 / F-350 Super Duty, which extends before Vertex's focus window starting 2017. Fitment follows the official catalog.

Official quantity per vehicle is 2. Sold each; order the quantity required for the axle.

Official specifications

• Collapsed Length (in): 13.58
• Extended Length (in): 21.37
• Lower Mount Type: Eye 14.1mm
• Upper Mount Type: Stem
• Internal Design: Monotube
• Finish: EVO Grey
• Reservoir: Yes
• Body Design: Smooth Body (Non-Coilover)
• Body Diameter (od): 2.65 in.
• Piston Diameter: 60mm
• Adjustable Damping: Non-Adjustable
• Spring Seat Included: No
• Quantity per Vehicle: 2

Limited Lifetime Warranty (per Bilstein).

Sold and installed at Vertex Motorsports in Appleton, WI. Call (920) 716-4005.