D4 fuel filters?

Went to Napa Auto today and they could find nothing for the U series D4. He did say that if I had Cat numbers, he could probably cross reference. Does anyone have the Napa numbers or the Cat numbers for oil and fuel filters for a D4-6U serial # 6070???. It appears that according to my serial number, I should have the early bypass oil filter but many have been converted to the full flow. I dont know if I can tell without removing the element. Is there any visual way of telling? _____Grant.

Fuel filter # is 7B8264 changes to 489-3196 requires four, $14.53 each from Cat. Gaskets are 7B7635 requires two. Bypass filter is smaller with the brass screen housing, the full flow is just the filter element. Full flow filter is 1R0659 from Cat $9.51

Rome K/G thank you very much. With those numbers I can go to my local Napa dealer instead of the 3 hour round trip to the Napa that has a separate truck counter. At the prices you mention, Cat filters are not bad but again, it is the three hour drive. Another cup of coffee and I am off to Napa Auto. Thanks again. Grant.

Fuel filter # is 7B8264 changes to 489-3196 requires four, $14.53 each from Cat. Gaskets are 7B7635 requires two. Bypass filter is smaller with the brass screen housing, the full flow is just the filter element. Full flow filter is 1R0659 from Cat $9.51

NAPA number for the full flow filter is 1161, WIX 51161

The bypass filter usually has a T handle on top of the housing while the full flow has a hex nut, sometimes with a slot cut in it for a bar to loosen it.