Bilstein 20-070274 B6 Performance Front Shock for 1992-1995 C4 Corvette FX3

Vehicle Fitment

• 1992-1995 Chevrolet Corvette Base / Coupe (C4, RWD, 5.7L V8 LT1, with FX3 Selective Ride Control)
• 1992-1995 Chevrolet Corvette Convertible (C4, RWD, 5.7L V8 LT1, with FX3 Selective Ride Control)
• 1992-1995 Chevrolet Corvette ZR-1 (C4, RWD, 5.7L V8 LT5, with FX3 Selective Ride Control - standard equipment)
• 1993 Chevrolet Corvette 40th Anniversary Edition (C4, RWD, 5.7L V8 LT1, with FX3 Selective Ride Control)

Fitment Notes

• Fits C4 Corvettes equipped with the FX3 Selective Ride Control (electronic adjustable suspension) only - does NOT fit C4 Corvettes without FX3, or those equipped with the Z51 Performance Suspension package instead
• FX3 was standard on all ZR-1 models and an available option on Base, Coupe, and Convertible trims for 1992-1995
• Sold individually - one shock absorber per unit; two required for a complete front axle replacement
• Does not include upper mount bushings or FX3 actuators - these must be sourced separately if rebuilding the FX3 system
• Spring seat not included - this shock does not carry a coil spring
• Replaces OEM GM/Chevrolet part number: 22089144

Features

• 46mm monotube gas-pressure design delivers fade-free, consistent damping performance - the larger piston diameter provides superior heat dissipation and damping sensitivity compared to twin-tube designs
• B6 Performance valving is specifically calibrated for the C4 Corvette FX3 front suspension geometry, providing a noticeable improvement in handling precision and body control over worn factory units
• Bar pin lower mount and stem upper mount match the C4 FX3 front suspension attachment points exactly - direct bolt-on installation using existing hardware
• Bilstein was the original equipment supplier for FX3-equipped C4 Corvettes - this shock restores and enhances the suspension performance these vehicles were engineered to deliver
• Yellow painted finish with included yellow dust boot - Bilstein's signature B6 Performance identity, and the same distinctive look as the factory FX3 units
• Individually fine-tuned during Bilstein's road testing process for Corvette-specific application accuracy
• Improves cornering stability, steering response, and road feel compared to aged or fatigued factory dampers
• Backed by Bilstein's Limited Lifetime Warranty against manufacturer defects for gas pressure shock absorbers

Specifications

• Part Number: 20-070274
• Brand: Bilstein
• Series: B6 Performance
• Position: Front axle (left or right)
• Piston Diameter: 46mm
• Internal Design: Monotube, gas-pressurized
• Upper Mount Type: Stem
• Lower Mount Type: Bar Pin
• Spring Seat: Not included
• Dust Boot: Included (Yellow Straight)
• Finish: Yellow paint
• Ride Height: Stock (OE)
• Adjustable Valving: No
• Quantity: 1 shock absorber

Included Components

• 1x Bilstein B6 Front Shock Absorber, 46mm Monotube (20-070274)
• 1x Yellow Straight Dust Boot

Product Description

The Bilstein 20-070274 is a B6 Performance front shock absorber engineered specifically for 1992-1995 Chevrolet Corvette C4 models equipped with the FX3 Selective Ride Control electronic suspension system. Bilstein was the original equipment supplier for FX3-equipped C4 Corvettes, and this 46mm monotube unit draws on that same engineering heritage to restore and improve the front suspension performance of these iconic American sports cars. The B6 designation means this shock uses performance-specific valving - approximately 20% stiffer than the original factory calibration - making it the ideal choice for Corvette owners who want sharper, more connected handling without compromising street drivability.

The FX3 Selective Ride Control was standard equipment on all 1992-1995 ZR-1 models and available as an option on base Coupe and Convertible Corvettes during the same period. This specific part number is for FX3-equipped vehicles only - C4 Corvettes without FX3, or those fitted with the Z51 Performance Suspension package, use different Bilstein part numbers. The bar pin lower mount and stem upper mount correspond precisely to the C4 FX3 front suspension mounting points, making installation straightforward. Upper mount bushings and FX3 actuators are not included and must be sourced separately if a full FX3 system rebuild is being performed.

Bilstein's 46mm monotube construction provides the C4 Corvette's front suspension with exceptional thermal performance and damping consistency - particularly important on a sports car that sees spirited driving. The gas-charged single-tube design dissipates heat more efficiently than conventional twin-tube shocks, ensuring the damping characteristics remain stable and predictable even under sustained high-load driving conditions. The included yellow dust boot protects the piston rod and maintains the authentic B6 appearance. This shock is sold individually and is backed by Bilstein's Limited Lifetime Warranty against manufacturer defects.