Dorman 540-743 Suspension Stabilizer Bar Bushing Kit - Front To Frame

Dorman 540-743 Suspension Stabilizer Bar Bushing Kit

Dorman 540-743 is a standard replacement suspension stabilizer bar bushing kit for specific front-to-frame applications. It is precision-engineered and tested to match the original equipment fit on select Cadillac, Buick, and Oldsmobile vehicles, including Cadillac Eldorado and Seville applications with a 21 mm diameter bar.

Key Features

• Standard replacement stabilizer bar bushing kit for OE-style fit and function
• Rubber construction for suspension service applications
• Inside diameter: 20.2 mm; outside diameter: 47.9 mm
• Assembled length: 1.94 in.; width: 2 in.
• No grease fitting included
• No bracket included
• Package contents: 2 bushings

Detailed Description

This Dorman suspension stabilizer bar bushing kit is built for front-to-frame mounting points where the original bushings have worn, cracked, or lost their ability to hold the sway bar securely. The rubber material helps restore proper bar support and reduce unwanted movement at the stabilizer bar connection. Dorman 540-743 cross-references MOOG Chassis Products K6674 and Mevotech Supreme MK6674 for the same application.

Compatible With 1990-2002 Cadillac Eldorado, front to frame; 1990-1997 Cadillac Seville, front to frame; 1990-1993 Buick Riviera, front to frame; 1990-1993 Cadillac Allante, front to frame; 1990-1992 Oldsmobile Toronado, front to frame; and 1990-1991 Buick Reatta, front to frame. This part number, 540-743, is a direct-fit service option for vehicles using a 21 mm diameter stabilizer bar at the front frame location.

What It Helps Address

• Clunking or knocking noises from worn stabilizer bar bushings
• Excessive sway bar movement at the frame mount
• Loose or deteriorated rubber bushings
• Front suspension noise caused by bushing wear
• Loss of stabilizer bar support at the front-to-frame position

Installation Notes and Tips

Verify stabilizer bar diameter before installation; this application is listed for a 21 mm bar. Inspect the mounting surface and surrounding suspension components for wear before replacing the bushings. Because no bracket is included, reuse the existing bracket only if it is serviceable and within specification. Confirm the front-to-frame mounting location and vehicle fitment before ordering.

Quality Assurance

Dorman engineers and tests this replacement bushing kit to provide reliable service on the listed vehicles. The 540-743 is built as a standard replacement part for OE-style fitment on the specified Cadillac, Buick, and Oldsmobile applications.