Dorman 540-521 Suspension Stabilizer Bar Bushing Kit - Rear

Dorman 540-521 Rear Stabilizer Bar Bushing Kit

Dorman 540-521 is a rear suspension stabilizer bar bushing kit built as a standard replacement for specific vehicles. It is precision-engineered and tested to match the original equipment fit on the listed Subaru applications, including Subaru Tribeca and Subaru B9 Tribeca rear suspension service.

Key Features

• Standard replacement stabilizer bar bushing kit for rear suspension service
• Rubber/elastomer construction for OE-style fit and function
• Inside diameter: 12.8 mm
• Outside diameter: 40 mm
• Width: 48 mm
• No grease fitting included
• No bracket included
• Package contents: 2 bushings

Product Details

This Dorman 540-521 bushing kit is made for rear stabilizer bar mounting points where worn bushings can create looseness, noise, or reduced bar control. It is a direct-fit replacement for select 2007-2014 Subaru Tribeca and Subaru B9 Tribeca rear applications, with dimensions and material selection aimed at restoring proper stabilizer bar support. This part cross-references Delphi TD4709W for the same application.

Common Issues It Can Help Address

• Rear suspension clunking or rattling from worn stabilizer bar bushings
• Excess stabilizer bar movement at the rear axle
• Loose or degraded rubber bushings on Subaru Tribeca rear suspension
• Noise caused by hardened, cracked, or compressed sway bar bushings
• Loss of consistent stabilizer bar support during cornering

Installation Notes

Verify stabilizer bar diameter and bushing dimensions before installation. Inspect the rear sway bar, mounting surfaces, and related suspension components for wear or corrosion before fitting the new bushings. This part does not include a grease fitting or bracket, so reuse existing hardware only if it is serviceable and matches the application.

Quality Assurance

Dorman manufactures this suspension stabilizer bar bushing kit as a tested replacement part for specific OE applications. The design focus is on fit, material selection, and dimensional accuracy for rear suspension service on the listed Subaru models.