Your search for "Oil Pump" revealed the following:
1990-1993 Mazda Miata Alternator Tensioner Bracket B61P-18-360
Sale price $11.45 Regular priceUsed 1990-1993 Mazda Miata Alternator Water Pump Belt Tensioner Bracket Alternator Strap B61P-18-360
2001-2005 Mazda Miata Oil Pump BP6D-14-100
Sale price $264.45 Regular priceNew Genuine Mazda 2001-2005 Mazda Miata Oil Pump BP6D-14-100
1990-2005 Mazda Miata Oil Pump Bolt Set (6)
Regular price $18.45Used 1990-2005 Mazda Miata Oil Pump Bolt Set (6)
1994-1997 Mazda Miata Oil Pump B6S8-14-100H 1.8
Regular price $20.00Used 1994-1997 Mazda Miata Oil Pump B6S8-14-100H 1.8 Untested Unknown Rebuildable Product Sold as photo'd but may not be actual part...
1990-1993 Mazda Miata Alternator Water Pump Belt Tensioner Adjuster Kit
Sale price $12.45 Regular priceNew 1990-1993 Mazda Miata Alternator Water Pump Belt Tensioner Adjuster Kit
1990-2005 Mazda Miata Water Pump Bolt Set (4) 9979-40-825
Sale price $5.45 Regular priceUsed 1990-2005 Mazda Miata Water Pump Bolt Set (4) 9979-40-825 (4)