65 cm3 displacement. 1-5/16″ left inlet, 7/8″ top inlet, 1-5/8″ right inlet, 1-1/16″ discharge.
OEM Reference # AR101288, AR52952, AR99845
Fits: John Deere 310B, 410 (after s/n: 383250), 500C (after s/n: 386722)
Verify casting number before ordering