Does anyone know where I can get a one piece oil filler cap for a 24V Cummins? Preferably one made of metal. I recently installed an Amsoil bypass filter which requires the return line be routed through the oil cap or drilling and tapping the rocker arm cover. I opted for the oil cap approach but am not satisfied with this design which requires diassembling the factory two piece cap, removing the spring, grinding off the ratchets, and then gluing the two pieces together after installing the swivel valve. The result is a somewhat flimsy arrangement. Much better if we could use a one piece oil cap. Somebody on the forum found such a cap at a parts store I believe in Florida but was unable to come up with a brand name or any way of ordering a similar item. All the aftermarket caps I have been able to locate are identical to the factory one.