Dorman 540-406 Suspension Stabilizer Bar Bushing Kit - Front

Dorman 540-406 Front Stabilizer Bar Bushing Kit

Dorman 540-406 is a front suspension stabilizer bar bushing kit built as a standard replacement for specific Lexus applications. It is made from rubber/elastomer material and is engineered to match the original equipment fit on vehicles with a 27.80 mm front stabilizer bar.

• Direct-fit suspension stabilizer bar bushing kit for specific vehicles
• Rubber construction for OE-style bar support and isolation
• Black finish
• Specific fit design for front suspension use
• Compatible with Lexus GS300, GS400, and GS430 front applications listed below

Fitment Details

• Fits 1998-2005 Lexus GS300, front, 27.80 mm diameter bar
• Fits 2001-2005 Lexus GS430, front, 27.80 mm diameter bar
• Fits 1998-2000 Lexus GS400, front, 27.80 mm diameter bar

Detailed Description

This Dorman stabilizer bar bushing kit, part number 540-406, is intended for front suspension service where the original bushing has worn, hardened, or lost its ability to hold the sway bar securely. The 26 mm inside diameter, 44 mm outside diameter, and 46.6 mm assembled length support a precise replacement on the listed Lexus GS300, GS400, and GS430 models. This part cross-references MOOG Chassis Products (e.g., K90537) and Mevotech Supreme (e.g., MK90537) for the same application.

What It Helps Address

• Front suspension clunking or rattling from worn stabilizer bar bushings
• Excess sway bar movement caused by deteriorated rubber
• Loose-feeling front-end response during cornering
• Noise from bar-to-bracket contact on the listed Lexus models
• Restoration of proper stabilizer bar support after bushing wear

Installation Notes and Tips

Verify the front stabilizer bar diameter before installation; this application is listed for a 27.80 mm bar. Inspect the sway bar and surrounding mounting points for wear or corrosion before replacing the bushing. Mounting hardware and brackets are not included, so reuse or replace related components as needed based on condition.

Quality Assurance

Dorman designs this replacement bushing kit as a precision-engineered, rigorously tested part for specific vehicle applications. Part number 540-406 is built to provide a reliable OE-style replacement for the front stabilizer bar on the listed Lexus GS300, GS400, and GS430 models.