Bilstein 33-225500 is a B8 8125 series coilover shock absorber for custom coilover suspension applications. It is a 46mm monotube shock with a 2.0 in zinc plated threaded body (screw top), a remote reservoir and medium valving, and it is designed for use with dual-rate springs; the spring seat is included. It measures 15.00 in collapsed and 23.00 in extended with 8.00 in of stroke, with .5x1.5in eye mounts at the top and bottom. B8 8125 coilovers use a 3-stage seal pack, a 22mm hard chromed, case hardened piston rod and a high-temp reservoir hose, and they are owner rebuildable.
Notes:
- This is a universal coilover shock with no vehicle applications, intended for custom coilover suspension builds.
- An optional reservoir clamp is Bilstein part number B4-KT1-Z315A00.
Specifications:
- Brand: Bilstein
- Part Number: 33-225500
- Series: B8 8125
- Product: Suspension Shock Absorber
- Collapsed Length (in): 15.00
- Extended Length (in): 23.00
- Extended Length (mm): 584.2
- Stroke/travel Length (in): 8.00
- Rebound @0.52m/s: 2550
- Lower Mount Type: Eye .5x1.5in
- Upper Mount Type: Eye .5x1.5in
- Mount Type: Eye-to-Eye
- Internal Design: Monotube
- Finish: Zinc Plated
- Reservoir: Yes
- Body Design: Threaded Body Screw Top (Coilover)
- Body Diameter (od): 2.0 in.
- Piston Diameter: 46mm
- Spring Seat Included: Yes
- Optional Reservoir Clamp: B4-KT1-Z315A00
- Valving Type: Medium
- Country of Origin: US
- Quantity per Vehicle: 2
- Piston Rod: 22mm hard chromed, case hardened
- Seal Pack: 3-stage
- Springs: Designed for use with dual-rate springs
- Serviceability: Owner rebuildable
FAQ
What is the Bilstein 33-225500 used for?
It is a B8 8125 coilover shock for custom coilover suspension applications, designed for use with dual-rate springs. It has no vehicle-specific applications.
What are the 33-225500 lengths?
It measures 15.00 in collapsed and 23.00 in extended, with 8.00 in of stroke.
How does the 33-225500 mount?
It is an eye-to-eye shock with .5x1.5in eye mounts at the top and bottom.
Does the 33-225500 have a reservoir?
Yes. It has a remote reservoir, and an optional reservoir clamp is Bilstein part number B4-KT1-Z315A00.
Is the 33-225500 rebuildable?
Yes. B8 8125 coilovers are owner rebuildable.

