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Bilstein 33-185576 B8 5125 Monotube Shock Absorber Custom Application

(2005-2006 BMW Z4 M Coupe; 1977-1986 Chevrolet K30; 1969-1974 Chevrolet K30 Pickup Base; 1979-1986 GMC K3500; 1969-1974 GMC K35/K3500 Pickup Base + 1 more model)

Part of: Bilstein B8 5125 Series Monotube Shock Absorbers

Other options in this family: Bilstein 33-230368 Bilstein 33-230320 Bilstein 33-230344 Bilstein 33-230382 Bilstein 33-230405

Manufacturer

Picture for manufacturer Bilstein

Part Number

33-185576
12 reviews
Sale Price

$120.00

1 left at this price

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Usually delivered within 2 days

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Product Details

The Bilstein B8 5125 shock absorber is engineered for custom suspension applications, providing a high-performance solution for vehicles without direct Bilstein fitment options. This monotube shock absorber delivers superior damping control through high gas pressure design, making it ideal for suspension builders and custom fabrication projects.

Key Features:

  • 46mm piston diameter with self-adjusting deflective disc valving for responsive damping
  • High-pressure monotube design ensures consistent performance and fade resistance
  • Industry-standard 5/8-inch hourglass bushings included for versatile mounting
  • Available in eye/eye or stem/eye mount configurations
  • Sold individually by length and valve rate to accommodate diverse applications
  • Precision-engineered for custom suspension builds and specialized fitments

Bilstein's proven monotube technology provides excellent heat dissipation and consistent damping characteristics across varying conditions. The B8 5125 series gives suspension builders the flexibility to specify exact shock lengths and valving rates for optimized performance in custom vehicles, lifted trucks, off-road builds, and specialty applications where standard fitments aren't available.

Products specifications

Fits

2005-2006 BMW Z4 M Coupe; 1977-1986 Chevrolet K30; 1969-1974 Chevrolet K30 Pickup Base; 1979-1986 GMC K3500; 1969-1974 GMC K35/K3500 Pickup Base; 1977-1978 GMC K35

*Collapsed Length (IN)

20.75

*Collapsed Length (MM)

527

*Extended Length (IN)

34.9

*Extended Length (MM)

886.5

Collapsed Length (in)

20.750 in.

Extended Length (in)

34.900 in.

Lower Mount

Eyelet

Notes

255/70 valving, 14.30 in. travel.

Quantity

Sold individually.

Upper Mount

Eyelet

Series

5100 Series

Collapsed Length (MM)

527.5

Extended Length (mm)

887.0

Finish

Zinc Plated

Lower Mount Type

Eye 5/8in

Extended Length (IN) Rounded

35

Reservoir

No

Compression @0.52m/s

700

Adjustable Damping

Non-Adjustable

Series

B8 5125

Boot Included

No

Mount Type

Eye-to-Eye

Collapsed Length (in)

20.77

Rebound @0.52m/s

2550

Extended Length (in)

34.92

Collapsed Length (IN) Rounded

21

Body Diameter (ID)

46mm

Internal Design

Monotube

Body Design

Smooth Body (Non-Coilover)

Upper Mount Type

Eye 5/8in

good quality, low price and fast service. would definitely use them again

Great Service

As expected

pretty reasonable.

Exactly what I needed

Fast and easy, great price.

Arrived in good working order.

Autoplicity has great prices and customer service. Shipping is fairly fast too. Ordered product on Monday and it was shipped on Wednesday. Will make future purchases with this company.

Good

Great prices very fast shipping!!!

Autoplicity had the lowest price online for the product I needed. I will definitely buy from them again.

A very good price on items. Very quick response and delivery. Thanks

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