Moog K500225 Suspension Ball Joint - Front Lower

Moog K500225 Front Lower Ball Joint

Moog K500225 is a front lower suspension ball joint built for select Audi applications. It uses a greaseable design, a neoprene material, and includes a castle nut with cotter pin hole for service-friendly installation and secure fastening.

Key Features

• Greaseable ball joint for maintenance access
• Neoprene material
• Castle nut included
• Cotter pin hole included
• Front lower position

Detailed Description

Moog K500225 is a front lower ball joint for select Audi A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, A7 Quattro, Q5, S4, and S5 models. It is built with superior materials and tested for dependable performance, while the simplified design supports easier installation in rack and pinion bellows kit service areas. This part cross-references Delphi TC543 for the same application.

For buyers searching for a front lower ball joint for 2008-2015 Audi A5 Quattro, 2008-2015 Audi S4, or 2009-2011 Audi A4 Quattro, Moog K500225 provides a direct replacement option. It also applies to 2012 Audi A4, 2012 Audi A4 Quattro, 2012 Audi A6, 2012 Audi A6 Quattro, 2012 Audi A7 Quattro, 2012 Audi Q5, and 2012 Audi S5 in the listed front lower position.

What It Helps Address

• Front suspension looseness at the lower control arm connection
• Clunking or knocking from worn ball joint components
• Uneven steering response caused by joint wear
• Excess play in the front suspension linkage
• Service replacement for worn OE-style front lower ball joints

Installation Notes

Verify vehicle year, model, and front lower position before ordering. The included castle nut and cotter pin hole support proper fastening during installation. The simplified design is intended to make access easier in applications where rack and pinion bellows kit clearance matters. Always inspect related suspension components and alignment settings after replacement.

Quality Assurance

Moog backs this ball joint with materials selection and testing focused on reliable service life. The K500225 part number is used across multiple OE and aftermarket references, including Beck/Arnley 101-6806 and TRW JBJ789, helping confirm application matching for the listed Audi vehicles.