These Motorcraft FL-784A oil filters fit 1983 through 1994 NON-Turbo 6.9 liter and 7.3-liter diesel engines. The FL-784A (updated from the former FL-784) is interchangeable with the following filters: Fram PH3766, AC PF1054, Purolator PER288, and Wix 51742. This filter is also used on some aftermarket oil filter relocation kits. 

 

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