Royal Purple High Performance Synthetic Motor Oil -SAE 15W-40 - 1 Gallon Jug DX2125K Sets include 16 matched rocker

Sets include 16 matched rocker arm nuts which are direct replacements for many stud girdles

(03-01) GMC Sierra 1500 HD Classic (07) GMC Sierra 2500 (04-99) GMC Sierra 2500 HD (07-01) GMC Sierra 3500 (06-01) GMC Sierra 3500 Classic (07) GMC Sierra 3500 HD (07) GMC W3500 Forward (03) GMC Yukon (06-00) GMC Yukon XL 1500 (06-00) GMC Yukon XL 2500 (06-00) Hummer H2 (07-03) Isuzu Ascender (04-03) Isuzu NPR (03) Workhorse FasTrack FT1061 (05-04) Workhorse FasTrack FT1261 (05) Workhorse FasTrack FT1461 (05-04) Workhorse FasTrack FT1601 (05-04) Workhorse FasTrack FT1801 (05-04)

1989-1992 Comanche and 1988-1999 Jeep Wranglers with the Aisin AX15 5-speed transmission

Square Bore

Royal Purple High Performance Synthetic Motor Oil -SAE 15W-40 - 1 Gallon Jug DX2125K Sets include 16 matched rockerRoyal Purple(R) Motor Oil delivers superior protection and improves performance in four cycle gasoline and diesel engines. It increases horsepower and torque, saves fuels and reduces heat, wear and emissions. It has unsurpassed oxidation stability that allows for extended oil drains and fewer oil changes, which saves you time and money and reduces the impact on the environment. Royal Purple's motor oils for passenger cars and trucks are API licensed.