Suspension Ball Joint (NAPA part 260-1578).

NAPA Chassis Parts ball joint with hardened stud and polished ball, corrosion-resistant coating, and wrench flats/knurls/cotter-pin installation features. Official specifications: tapered stud; 16 mm and 18.1 mm tapered ends; 12 mm thread diameter, 1.25 pitch; rubber dust boot; grease fittings and castle nut included; push-on mounting; steel; 111 mm length; 85.03 mm height; 43.8 mm max outside diameter; greaseable; VMRS 16001015; limited lifetime warranty.

NAPA Official Product Details

NAPA warranty: Limited Lifetime

• This suspension ball joint is built for smooth performance and superior durability. It features a hardened stud and polished ball with convenient installation features, premium grease and a corrosion-resistant coating.
• polished studs make for smooth ride quality while extending the joint's service life through reduced wear
• coated studs, housing and hardware provide extended protection against corrosion
• High-strength steel studs
• hardened steel studs offer strength and toughness for extreme driving conditions
• Installation features
• wrench flats, knurls and cotter pins make installation easier and quicker