Used factory 1.8 liter engine oil cooler stud and nut for Late NA and NB Mazda Miata. This is the threaded oil feed stud that threads into the engine block and the attachment nut that secures the oil cooler to the engine block. Part numbers E5B6-10-319C (oil feed stud) and 9992-22-000 (cooler attachment nut). Oil cooler and coolant hoses not included. Fits 1994-2005. Sold as a set.
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