Nismo Oil Filler Cap - Part No. 21430-RS012 New price at JustJap $139.00. - $100.00 Nismo Radiator Cap - Part No. 15255-RN012 New price at JustJap $59.00 - $45.00 Nismo Fuel Filler Cap Cover - Part No. 17251-RN010US - Discontinued - $100.00 Prices negotiable.