1st Gen Dodge 230hp Cummins injector for 1989-93 6BT engines. These injectors use an 145 degree nozzle for better piston bowl spray and alignment. Has the perfect amount of fuel for daily driving, towing and fuel mileage, enough fuel for 40 RWHP. These injectors come with a 7mm nozzle and a 1.5mm nozzle washer. If you have 9mm nozzles in your application you will need to order nozzle sleeve washers to fill the gap (pn#D3919358). Earlier applications had 9mm injector nozzles and therefore 9mm bores in the head. Because of the 9mm bore heads, Cummins experienced head cracking problems. All newer applications 1992+ and if the heads were serviced or replaced should have the updated 7mm injector bore. It's always a good idea to verify before ordering, all you have to do is measure with calipers across the nozzle tip.