Bilstein 24-313971 is a B8 5100 (Ride Height Adjustable) front shock absorber for the 2021-2026 Ford Bronco. It is a monotube shock with a 46mm piston, a 2.0 in snap ring grooved (coilover) body with multiple spring seat positions, an 18mm shaft and a zinc plated finish, and no boot is included. It has a stem upper mount and a crossbar lower mount, and it measures 16.62 in collapsed and 22.80 in extended with 6.18 in of travel. Front lift depends on submodel and the Sasquatch Package, from 0-1.7 in to 1-2.9 in. No spring seat is included (the OEM spring seat is reused), damping is non-adjustable, and the quantity per vehicle is 2.
Notes:
- The 2025-2026 Badlands application is for vehicles without the HOSS 3.0 Package.
- The replacement mounting kit is Bilstein part number B4-KT1-Z455A00.
Specifications:
- Brand: Bilstein
- Part Number: 24-313971
- Series: B8 5100 (Ride Height Adjustable)
- Product: Suspension Shock Absorber
- Collapsed Length (in): 16.62
- Extended Length (in): 22.80
- Extended Length (mm): 579.2
- Stroke/travel Length (in): 6.18
- Lower Mount Type: Crossbar
- Upper Mount Type: Stem
- Internal Design: Monotube
- Finish: Zinc Plated
- Reservoir: No
- Body Design: Snap Ring Grooved Body (Coilover)
- Body Diameter (od): 2.0 in.
- Piston Diameter: 46mm
- Boot Included: No
- Replacement Mounting Kit: B4-KT1-Z455A00
- Spring Seat Included: No - Reuse OEM
- Shaft Diameter: 18mm
- Adjustable Damping: Non-Adjustable
- Country of Origin: US
- Quantity per Vehicle: 2
Vehicle Applications
- 2021 Ford Bronco (First Edition, Wildtrak): Front; Provides 0-1.7" Front Lift
- 2021 Ford Bronco (Badlands): Front; Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2021 Ford Bronco (Base, Big Bend, Black Diamond, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2022 Ford Bronco (Everglades, Wildtrak): Front; Provides 0-1.7" Front Lift
- 2022 Ford Bronco (Badlands): Front; Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2022 Ford Bronco (Base, Big Bend, Black Diamond, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2023 Ford Bronco (Everglades, Heritage Edition, Heritage Limited Edition): Front; Provides 0-1.7" Front Lift
- 2023 Ford Bronco (Badlands): Front; Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2023 Ford Bronco (Base, Big Bend, Black Diamond, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2024 Ford Bronco (Everglades, Heritage Edition, Heritage Limited Edition): Front; Provides 0-1.7" Front Lift
- 2024 Ford Bronco (Badlands): Front; Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2024 Ford Bronco (Big Bend, Black Diamond, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2025 Ford Bronco (Heritage Edition): Front; Provides 0-1.7" Front Lift
- 2025 Ford Bronco (Base, Big Bend, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2025 Ford Bronco (Badlands): Front; Without HOSS 3.0 Package, Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2026 Ford Bronco (Heritage Edition): Front; Provides 0-1.7" Front Lift
- 2026 Ford Bronco (Base, Big Bend, Outer Banks): Front; Provides 1-2.9" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
- 2026 Ford Bronco (Badlands): Front; Without HOSS 3.0 Package, Provides 0.7-2.5" Front Lift Without Sasquatch Package, 0-1.7" Front Lift With Sasquatch Package
FAQ
What vehicles does the Bilstein 24-313971 fit?
It fits the front of the 2021-2026 Ford Bronco. The 2025-2026 Badlands application is for vehicles without the HOSS 3.0 Package, and the submodels for each year are listed under Vehicle Applications.
How much lift does the 24-313971 provide?
With the Sasquatch Package, and on the Everglades, First Edition, Heritage Edition, Heritage Limited Edition and Wildtrak, it provides 0-1.7 in of front lift. Without the Sasquatch Package it provides 0.7-2.5 in on the Badlands and 1-2.9 in on the Base, Big Bend, Black Diamond and Outer Banks.
What are the collapsed and extended lengths of the 24-313971?
It measures 16.62 in collapsed and 22.80 in extended, with 6.18 in of travel.
How does the 24-313971 mount?
It has a stem upper mount and a crossbar lower mount. The replacement mounting kit is B4-KT1-Z455A00.
Does the 24-313971 include a spring seat?
No. The OEM spring seat is reused, and the snap ring grooved body sets the spring seat position.

