Stock style reproduction oil pump assembly. This is the 2008-up upgrade style for higher volume and improved pressure. Upgrade replacement for OEM 26204-91A and direct replacement for OEM 26204-98. Gasket and mounting hardware included. - Standard pump on 08-22 XL models - Slightly longer than 91-97 pump, for which correct 1/4-20 x 2-5/8" (longer) screws are included in this kit - With 39mm diameter rotors (91-97 is 38mm) - Offers +110% feed and +115% scavenge volume when compared with 91-97 pump - Increased oil volume pump to help reduce engine and oil temperatures. Note: For 2000 XL model years only, remove oil fitting from pump assembly and replace with the fitting included in this kit.