Bilstein 36-233120 Coil Spring - Front

Bilstein B3 OE Replacement Front Coil Spring

The Bilstein B3 OE Replacement coil spring restores factory ride height and suspension geometry for select Mercedes-Benz models. Built to OE dimensions, spring rates, and design type, this front spring is a direct replacement for worn or sagging original equipment.

Compatible with Mercedes-Benz S420, S500, S600, S350, 300SD, 400SEL, 500SEL, 600SEL, and 400SE front suspension applications, part number 36-233120 is finished in black powder coat for added corrosion resistance.

Key Features

• Bilstein B3 OE Replacement series
• Front coil spring for factory-style suspension restoration
• Manufactured to OE dimensions and spring rates
• Matches original design types used by the vehicle
• Black powder coat finish
• Part number 36-233120

Product Details

The Bilstein B3 OE Replacement line is built for drivers who want to return the suspension to original specifications rather than change the vehicle’s ride characteristics. This coil spring is engineered to match the original spring dimensions and rate, helping preserve the intended stance, load support, and front-end response on Mercedes-Benz S-Class and related chassis applications. If you are replacing a fatigued spring on a Mercedes-Benz S420 or Mercedes-Benz S500, 36-233120 provides an OE-style solution for the front suspension.

This part cross-references Lesjofors 4056838 for the same application.

What It Helps Address

• Sagging front ride height
• Uneven stance from a worn spring
• Loss of original suspension geometry
• Factory ride quality changes caused by spring fatigue
• Front suspension service on Mercedes-Benz S-Class models

Installation Notes

Fits 1994-1999 Mercedes-Benz S420, front; heavy duty version for standard suspension only. Fits 1994-1999 Mercedes-Benz S500, front; heavy duty version for standard suspension only. Fits 1994-1999 Mercedes-Benz S600, front; heavy duty version for standard suspension only. Fits 1995 Mercedes-Benz S350, front; standard suspension only. Fits 1992-1993 Mercedes-Benz 300SD, front; standard suspension only. Fits 1993 Mercedes-Benz 400SEL, front; heavy duty version for standard suspension only. Fits 1992-1993 Mercedes-Benz 500SEL, front; heavy duty version for standard suspension only. Fits 1992-1993 Mercedes-Benz 600SEL, front; heavy duty version for standard suspension only. Fits 1992 Mercedes-Benz 400SE, front; heavy duty version for standard suspension only.

Verify suspension code and front spring application before installation. Because this is a coil spring, proper spring compression tools and suspension service procedures are required.

Quality Assurance

Bilstein manufactures the B3 OE Replacement series to OE dimensional and rate standards so the replacement spring aligns with factory suspension requirements. Part number 36-233120 is built for direct-fit service on the listed Mercedes-Benz front suspension applications.