Bilstein 38-233715 Coil Spring - Rear

Bilstein B3 OE Replacement Rear Coil Spring

Restore factory ride height and suspension function with the Bilstein B3 OE Replacement rear coil spring. Built to match original OE dimensions, spring rates, and design type, this spring is a direct replacement for the rear suspension on select BMW 3 Series models with sport suspension.

The black powder coat finish adds corrosion resistance, while the B3 OE Replacement line focuses on returning the suspension to factory specifications. Part number 38-233715 is a practical choice when replacing a worn rear coil spring on a BMW 325Ci, 330Ci, 325i, or 330i.

Key Features

• Bilstein B3 OE Replacement coil spring
• Rear position application
• Black powder coat finish
• Matches OE dimensions, spring rates, and design type
• Restores factory suspension geometry and ride height
• Part number 38-233715

Product Line Details

Bilstein B3 OE Replacement springs are part of a line focused on OE-style suspension restoration. They are built for vehicles that need a direct spring replacement without changing the original suspension character. For BMW 325Ci and BMW 330Ci rear spring service, this line supports a factory-spec approach to suspension repair.

Fitment

• Fits 2001-2006 BMW 325Ci, rear; Sport Suspension Only; B3 OE Replacement
• Fits 2001-2006 BMW 330Ci, rear; Sport Suspension Only; B3 OE Replacement
• Fits 2001-2005 BMW 325i, rear; Sport Suspension Only; B3 OE Replacement
• Fits 2001-2005 BMW 330i, rear; Sport Suspension Only; B3 OE Replacement
• Fits 2000 BMW 323Ci, rear; Sport Suspension Only; B3 OE Replacement
• Fits 1999-2000 BMW 323i, rear; Sport Suspension Only; B3 OE Replacement
• Fits 2000 BMW 328Ci, rear; Sport Suspension Only; B3 OE Replacement
• Fits 1999-2000 BMW 328i, rear; Sport Suspension Only; B3 OE Replacement

What It Helps Address

• Sagging rear ride height
• Broken or fatigued rear coil spring replacement
• Uneven rear suspension stance
• Loss of factory spring rate and support
• Restoration of OE suspension behavior on BMW 3 Series sport suspension models

Installation Notes and Tips

Verify rear suspension configuration before ordering, since this spring is listed for sport suspension only. Confirm the vehicle application by model, year, and position, and compare the original spring shape and dimensions to part number 38-233715 before installation. This part cross-references AMS Automotive 6173 for the same application.

Quality Assurance

Bilstein manufactures B3 OE Replacement coil springs to OE dimensions, spring rates, and design types so the replacement matches factory specifications for the listed BMW applications.