Bilstein B46-0164 B6 Front 46mm Monotube Shock Absorber for 1948-1965 Porsche

Vehicle Fitment

• 1948-1955 Porsche 356 (Base, Super) - Front
• 1955-1959 Porsche 356A (Base, Super) - Front
• 1960-1963 Porsche 356B (Base, Super, Super 90) - Front
• 1964-1965 Porsche 356C (Base) - Front
• 1964-1965 Porsche 356SC (Base) - Front

Fitment Notes

• Front position only - sold as a single shock absorber. Order 2 for a complete front axle replacement.
• Designed to be used with the factory OE spring - no spring replacement required for installation.
• Upper mount: Eye 11.5mm. Lower mount: Eye 12mm.
• Body-down (body/reservoir down) orientation.

Features

• 46mm monotube gas-pressure design eliminates fluid aeration and fade - delivers consistent, fade-free damping force under sustained use and repeated suspension cycling.
• Application-specific valve tuning developed and road-tested by Bilstein engineers for the Porsche 356 platform - optimized for both daily use and spirited driving on OE springs.
• Monotube construction keeps the working fluid and gas fully separated, preventing foaming and ensuring consistent valving at all times.
• Improves tire contact, grip, and lane stability over worn or stock shocks without requiring spring changes.
• Yellow paint finish - iconic Bilstein appearance with corrosion-resistant coating.
• Each unit rigorously tested to meet or exceed OE quality standards before leaving the factory.
• Limited Lifetime Warranty against manufacturer defects.

Specifications

• Part Number: B46-0164
• Series: Bilstein B6 Performance
• Position: Front
• Tube Diameter: 46mm
• Internal Design: Monotube Gas Pressure
• Upper Mount: Eye 11.5mm
• Lower Mount: Eye 12mm
• Orientation: Body Down
• Finish: Yellow Paint
• Boot Included: Black Straight Boot
• Warranty: Limited Lifetime (against manufacturer defects)

Included Components

• 1x Bilstein B6 Performance 46mm Monotube Front Shock Absorber (B46-0164)
• 1x Black Straight Boot

Product Description

The Bilstein B46-0164 is a B6 Performance front shock absorber engineered specifically for 1948-1965 Porsche 356 models including the 356, 356A, 356B, 356C, and 356SC. This 46mm monotube gas-pressure unit represents Bilstein's application-specific approach to the 356 platform - valve settings are developed and road-tested for the car's weight, geometry, and OE spring rates, delivering improved handling and stability without requiring any spring changes. Simply swap the worn original shocks and immediately benefit from Bilstein's decades of suspension engineering expertise applied directly to one of Porsche's most iconic air-cooled classics.

The monotube design keeps the working gas and fluid permanently separated, eliminating the aeration and fade that degrades twin-tube designs under repeated use - a meaningful benefit for a car driven with enthusiasm on twisty roads. Consistent valving across all driving conditions means the car responds predictably whether cruising or cornering hard. Finished in Bilstein's signature yellow and backed by a Limited Lifetime Warranty, the B46-0164 is sold as a single unit - order two for a complete front axle replacement.