Bilstein 36-281817 Coil Spring Set - Rear

Bilstein B12 Rear Coil Spring Set

Bilstein B12 (Special) suspension kits are built to change ride height while keeping suspension behavior balanced for street and trail use. Part number 36-281817 is a rear coil spring set for select Toyota 4Runner, Toyota FJ Cruiser, and Lexus GX460 applications.

Key Features

• Bilstein B12 (Special) series suspension tuning for ride-height changes
• Rear coil spring application for select Toyota 4Runner, Toyota FJ Cruiser, and Lexus GX460 models
• Black spring finish
• Designed to deliver a specific rear lift depending on vehicle application
• Compatible with Bilstein shock absorber-based suspension setups

Product Details

The Bilstein B12 (Special) line focuses on suspension kits that adjust vehicle stance for a specific performance requirement. This rear coil spring set, part number 36-281817, is engineered for fitment on 2003-2024 Toyota 4Runner, 2007-2008 and 2009-2014 Toyota FJ Cruiser, and 2010-2023 Lexus GX460 rear applications. Depending on the vehicle, the kit provides a measured rear lift to help achieve the intended ride height and suspension geometry. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Fitment

• Fits 2010-2024 Toyota 4Runner, rear. Provides 1" rear lift; B12 (Special).
• Fits 2014-2023 Lexus GX460, rear. Provides 1" rear lift; B12 (Special).
• Fits 2009-2014 Toyota FJ Cruiser, rear. Provides 1.7" rear lift; B12 (Special).
• Fits 2010-2013 Lexus GX460, rear. Requires rear coil spring conversion; B12 (Special).
• Fits 2003-2009 Toyota 4Runner, rear. Provides 1.8" rear lift; B12 (Special).
• Fits 2007-2008 Toyota FJ Cruiser, rear. Provides 0.9" rear lift; B12 (Special).

What It Helps Address

• Rear ride height that needs to be raised for a specific setup
• Uneven stance after suspension changes
• Need for application-specific rear lift on a Toyota 4Runner or Lexus GX460
• Need for rear suspension tuning on a Toyota FJ Cruiser
• Replacement of rear coil springs in a Bilstein B12 (Special) configuration

Installation Notes

Verify year, model, and rear suspension configuration before ordering. The 2010-2013 Lexus GX460 listing requires a rear coil spring conversion, so confirm the vehicle is set up for that application before installation. Professional installation and a post-installation alignment check are recommended after any ride-height change.

Quality Assurance

Bilstein B12 (Special) suspension kits are developed around application-specific ride-height targets and suspension dynamics. Part number 36-281817 is built as a rear coil spring set with a black finish for the listed Toyota and Lexus applications.