Suplex 06412 Coil Spring - Front

Front Coil Spring for BMW X3 and X4

Suplex 06412 is a front coil spring built for suspension service on select BMW X3 and BMW X4 models. It uses a constant wire diameter spring design with a 395 mm length, 169 mm outer diameter, and 13.75 mm thickness for a direct-fit replacement in the front suspension.

Compatible With BMW X3 and BMW X4 front suspension applications, this SUPLEX spring is specified for vehicles using OE No. 31336787137. The Suplex SUPLEX line focuses on replacement suspension components engineered to match the original spring layout and dimensions needed for proper ride height and load support.

Key Features

• Part number: 06412
• Front position coil spring
• Constant wire diameter spring design
• Length: 395 mm
• Outer diameter: 169 mm
• Thickness: 13.75 mm
• Weight: 2.8
• OE reference: 31336787137

Detailed Description

Suplex 06412 is a front coil spring for BMW X3 and BMW X4 suspension systems. It is built to the listed dimensions and spring design, making it a direct replacement option for front-end spring service where the original OE specification calls for part number 31336787137. The SUPLEX product line is positioned around replacement suspension parts for vehicles that require accurate spring geometry and consistent front ride support.

Fits 2011-2017 BMW X3, front. Fits 2015-2018 BMW X4, front. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Sagging front ride height
• Broken or fatigued front coil spring
• Uneven front suspension stance
• Noisy or unstable front-end spring support
• Replacement needs tied to OE No. 31336787137

Installation Notes and Tips

Install on the front suspension only and verify OE number 31336787137 before ordering. Because coil springs are load-bearing suspension components, use proper spring compression tools and follow BMW service procedures during removal and installation. Confirm left/right orientation and inspect related suspension parts for wear before reassembly.

Quality Assurance

Suplex supplies suspension components under the SUPLEX line with OE-style dimensional matching for listed applications. Verify fitment against the vehicle’s model year and OE reference before installation.