Ball Joint Ball joint kits are sold per A-arm and come with snap ring and cotter pin, King pin kits (used in applications where a king pin was used rather than a ball joint) include all bushings, pins and seals needed for repair, Ball joints feature heavy-duty steel cases with POM-M90 bearing material for long life, Put an end to premature Honda ball joint failure by upgrading from the OEM aluminum joint to our heavy-duty steel joint, Inexpensive for those Kawasaki and Suzuki applications that otherwise require purchase of complete A-arm/steering knuckle