When your 1st Gen Cummins Ram came down the assembly line, the engine had a FS1232 fuel filter on the engine. This is the correct factory filter for all 1989-1993 Dodge Ram Cummins trucks. It is also still the best fuel filter to buy for your 1st Gen.
Don’t skimp on cheaper filters and save a few dollars. Buy a filter manufactured by Cummins. They know what their engines need to remain legendary status.
