AW-17220743903, GT-K4ZB5X3V
Make your first-gen 5.9L 12-valve Cummins look as sharp as it runs. This section focuses on proven dress-up parts for 1989–1993 trucks—billet caps, tappet/front covers, valve cover hardware, catch cans, and freeze plugs—so you can clean up the bay and keep leaks at bay.
Looking for more 12-valve engine parts? See the full 1989–1993 Cummins Engine Parts & Accessories or the complete 1989–1993 Dodge Cummins catalog.
Billet caps (oil, brake), valve covers, tappet/front covers, freeze plugs, and clean CCV routing—items that improve appearance and serviceability.
Many do, but always check the listing notes and your truck’s year; some covers and hardware differ.
Yes—reduces crankcase pressure and oil mist, keeping the bay tidy and gaskets happier.
It’s smart insurance while you’re in the front cover—cheap prevention against major damage.
Prep the surface carefully, use the correct sealant/gasket, and follow torque sequence/specs.