Dorman 541-503 Rack and Pinion Bellows Kit - Left or Right

Dorman 541-503 Rack and Pinion Bellows Kit

Dorman 541-503 is a direct-fit rack and pinion bellows kit for select Audi and Volkswagen steering systems. It is precision-engineered and tested to replace the original bellows on specific vehicles, helping protect the rack from dirt, moisture, and road debris.

Key Features

• Specific-fit rack and pinion bellows kit for select applications
• Black neoprene polychloroprene bellows construction
• Clamps and mounting hardware included
• 12-rib bellows design with a 196.1 length
• Standard replacement grade for steering service
• Fits left and right side applications listed below

Product Details

This Dorman steering bellows kit is built for vehicles that require a precise rack boot replacement to maintain steering protection and proper sealing. The bellows measures 196.1 in length and uses a black neoprene polychloroprene material with a 2 thickness for durable service in the steering gear area. End dimensions are 59.3 at one side and 23.8 at the other, with inside diameters of 55.3 and 19.8. The kit includes cable ties and mounting hardware, and the bellows uses a specific-fit design for the listed Audi A4, A6, A6 Quattro, A8 Quattro, RS6, S4, S8, Allroad Quattro, and Volkswagen Passat applications. This part cross-references MOOG Chassis Products K90439 and Mevotech Supreme MK90439 for the same application.

Vehicle Fitment

• Fits 2005 Audi A6, right, to VIN 4B 5 050 000
• Fits 2005 Audi A6 Quattro, right, to VIN 4B 5 050 000
• Fits 2001-2005 Audi Allroad Quattro, left
• Fits 2000-2005 Volkswagen Passat, left
• Fits 2004 Audi A6, left
• Fits 1998-2002 Audi A6, left
• Fits 1999-2004 Audi A6 Quattro, left
• Fits 2003-2004 Audi RS6, left
• Fits 2003 Audi A6, right
• Fits 2003 Audi A8 Quattro, left, to VIN 4D-3-004 999
• Fits 2003 Audi S8, left, to VIN 4D-3-004 999
• Fits 2000-2002 Audi A8 Quattro, left
• Fits 2001-2002 Audi S8, left
• Fits 2001 Audi A4, left, to VIN 8D-1-200 000
• Fits 2001 Audi A4 Quattro, left, to VIN 8D-1-200 000
• Fits 2001 Audi S4, left, to VIN 8D-1-200 000
• Fits 1999-2000 Audi A4, left
• Fits 1999-2000 Audi A4 Quattro, left
• Fits 2000 Audi S4, left
• Fits 1998-1999 Volkswagen Passat, left, from 2/01/99
• Fits 1998 Audi A4, left, from VIN 8D-X-053 001
• Fits 1998 Audi A4 Quattro, left, from VIN 8D-X-053 001
• Fits 1998 Audi A6 Quattro, right

Common Steering Issues It Can Address

• Damaged or torn rack and pinion bellows
• Contamination entering the steering rack area
• Loss of protection around the inner tie rod and rack housing
• Cracked or worn steering boot material
• Need for a direct replacement during steering service

Installation Notes

Verify side, VIN breakpoints, and model year before ordering, since this part is specific to the listed applications. Inspect the steering rack, inner tie rod area, and adjacent seals before installation, and replace any worn components that could compromise the new bellows. Use the included clamps and cable ties to secure the boot according to the vehicle’s steering layout.

Quality Assurance

Dorman designs this rack and pinion bellows kit as a standard replacement part and tests it for reliable fit and function on the specified vehicles. The part number is 541-503.