Diesel or Gas Fuel Filler Neck Cap - Thread in

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Thread in Filler Neck Cap 1.75" Thread OD 1" Thread Depth Fits most threaded filler necks Fits our filler neck threaded tube inserts Size 2.25" x 2.95"OD Overall Plain black - Look s great on flatbeds! Fits: Chevy/GMC Duramax, Ford Powerstroke & Dodge Cummins applications that use a thread in filler neck cap. Show more