All new stainless steel fuel tube nuts from Fleece Performance. Ensure a proper seal on your injector tubes and high pressure injection lines with our high tolerance nuts produced from 300 series stainless steel. Application Notes Replaces Cummins P N 5264181, 3946625, 4893739 Replaces Mopar P N 5086866AB Replaces Bosch P N F00RJ00437