Bilstein 36-266050 Coil Spring - Front

Bilstein B3 OE Replacement Coil Spring for BMW

The Bilstein B3 OE Replacement coil spring restores factory ride height, spring rate, and suspension geometry for select BMW 3 Series models. Built to OE dimensions and design type, this front coil spring helps return the suspension to original function and safety standards.

Finished in black powder coat, part number 36-266050 is a direct-fit replacement for standard suspension applications on BMW 325Ci, 330Ci, 323Ci, 328Ci, 325i, 330i, 323i, and 328i front suspension setups.

Key Features

• Bilstein B3 OE Replacement series for factory-style suspension restoration
• OE-matched dimensions, spring rates, and design type
• Black powder coat finish for corrosion resistance
• Front coil spring for standard suspension applications
• Part number 36-266050 for BMW 3 Series fitment

Product Details

The B3 OE Replacement line is built for drivers who want suspension service that follows original equipment specifications. This coil spring is manufactured to match the OE dimensions and spring characteristics used on the vehicle, helping preserve the intended ride quality and suspension response. For BMW 325Ci and BMW 330Ci front suspension service, as well as BMW 323Ci and BMW 328Ci front spring replacement, 36-266050 provides a factory-style solution. This part cross-references Lesjofors 4008428 for the same application.

What This Spring Helps Address

• Sagging or uneven front ride height
• Loss of original spring rate and ride control
• Noisy or worn front suspension components related to spring fatigue
• Restoration work after replacing aging OE springs
• Factory-spec suspension service on BMW 325i, 330i, 323i, and 328i models

Installation Notes and Fitment

• Fits 2001-2006 BMW 325Ci, front; standard suspension only; B3 OE Replacement
• Fits 2001-2006 BMW 330Ci, front; standard suspension only; B3 OE Replacement
• Fits 2001-2005 BMW 325i, front; heavy duty version for standard suspension only; B3 OE Replacement
• Fits 2001-2005 BMW 330i, front; heavy duty version for standard suspension only; B3 OE Replacement
• Fits 2000 BMW 323Ci, front; standard suspension only; B3 OE Replacement
• Fits 1999-2000 BMW 323i, front; heavy duty version for standard suspension only; B3 OE Replacement
• Fits 2000 BMW 328Ci, front; standard suspension only; B3 OE Replacement
• Fits 1999-2000 BMW 328i, front; heavy duty version for standard suspension only; B3 OE Replacement

Verify standard suspension configuration before ordering. This Bilstein coil spring is intended for front suspension service on the listed BMW 3 Series applications and should be matched to the vehicle’s original suspension specification.

Quality Assurance

Bilstein manufactures the B3 OE Replacement line to OE dimensions, spring rates, and design types to support factory-spec suspension restoration. Part number 36-266050 is built for consistent fitment on the listed BMW applications.