Bilstein B4 22-139948 Front Right Shock Absorber / Strut / Damper for BMW 3 Series E46 1998-2006 – OSF RH Offside Suspension Leg, Gas Pressure Twin-Tube, OE/OEM Standard Ride Height Replacement (Saloon, Coupe, Convertible, Touring, Compact)

Bilstein B4 22-139948 Offside Front Strut for BMW 3 Series E46 1998 to 2006

Bring back that tight, planted BMW feel with the Bilstein B4 offside front strut, part number 22-139948. This gas-charged, twin-tube damper is a direct-fit, factory-spec suspension leg for the right-hand side of the front axle on BMW 3 Series E46 models with standard ride height. If your E46 is crashing over bumps, diving under braking or wandering on the motorway, this replacement strut restores grip, comfort and confidence without making the ride harsh.

We run B4 units on our own E46 road cars and customer builds. Feedback is consistently positive on steering precision, stability and overall refinement. It is the perfect solution for MOT advisories, worn original dampers and tired suspension that has lost its control.

Key benefits

• OEM-level quality and fit for BMW E46 standard suspension
• Gas-charged twin-tube design for consistent, fade-resistant damping
• Sharper turn-in, improved road holding and better brake stability
• Direct replacement strut assembly for the right-hand front corner
• Transforms an ageing chassis back to a smooth, controlled ride
• Excellent durability from a trusted German suspension manufacturer

Popular search phrases

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Fitment guide

Suitable for BMW 3 Series E46 with standard suspension set-up:

• Saloon E46
  • 316i, 318i, 320i, 323i, 325i, 328i, 330i, 318d, 320d, 330d
• Compact E46
  • 316ti, 318ti, 325ti, 318td, 320td
• Coupe E46
  • 316Ci, 318Ci, 320Ci, 323Ci, 323i, 325i, 325Ci, 328Ci, 330Ci, 320Cd, 330Cd
• Convertible E46
  • 318Ci, 320Ci, 323Ci, 325Ci, 330Ci, 320Cd, 330Cd
• Touring E46
  • 316i, 318i, 320i, 323i, 325i, 328i, 330i, 318d, 320d, 330d

Tip for best balance and braking stability: replace both front units together. The matching nearside front partner is Bilstein B4 22-139931.

Technical details

Is it right for your vehicle

Unsure about compatibility. At checkout, provide your UK registration or last 7 of the VIN and we will confirm before dispatch. This unit is intended for standard suspension configurations.

Professional fitting

Installation available at MJ Modifications, Warwickshire. Email info@mjmodifications.co.uk for a fitting quote. We recommend new top mounts, bearings and hardware where required, and replacing dampers in axle pairs for best results.

Part identifiers

• Bilstein reference: 22-139948
• Alternative formats: 22 139 948
• Series: B4
• EAN: 4025258583118
• UPC: 651860583112

Related item

Left-hand front strut for E46: Bilstein B4 22-139931.

Why buyers choose this upgrade

• Restores factory handling on daily-driven E46 models
• Reduces bounce, roll and uneven tyre wear from worn shocks
• Trusted by enthusiasts and technicians for reliability and ride quality