Kubota M Series Diesel Tractor Starter Motor | OEM 1C010-63010

Two numbers describe this starter and neither of them is wrong, which is roughly the state of the Kubota M-series parts book after twenty years of revision. 1C010-63010 is the designation a great many tractors left the factory with, and the argument about its output is a publisher's argument rather than a builder's: Kubota rated the unit at 2.5 kW, while catalogues that have copied one another for a decade print 2.2. What does not move between the two is the hardware — a nine-tooth pinion turning clockwise, 6.35 kg complete, and the OSGR reduction housing Mitsubishi built for the range. It runs the M6800, M8200 and M9000 built between 1997 and 2005, the short-lived M95S and M105S, and the M108S that stayed in production until 2014.

OEM and Search References

• Primary Kubota reference: 1C010-63010, with 1C010-63011, -63012 and -63013 as surrounding revisions of one assembly

• Cross-family numbers: 1G772-63010, 1G772-63011 and 1G772-63012, plus M008T70971, M8T71671, SMT0179

• Aftermarket: WAI 410-48125, S-8961 in older US price books, Lester 18398

• Ratings: 12 V, 2.5 kW in Kubota's figures, 2.2 kW in some catalogues, 9 teeth, CW, 6.35 kg

• Construction: Mitsubishi OSGR gear-reduction drive, the same family used across the M range

• Fitment: M6800, M8200, M9000 1997-2005; M95S 2005-2006; M105S 2005-2007; M108S 2007-2014

• Search: 1C010-63010 starter, Kubota M108S starter motor, M9000 12V starter, Mitsubishi reduction starter

Fitment and Purchase Checks

Ordering by model year alone runs into the M95S problem, a tractor that existed for two seasons and still occupies a column of its own in the interchange guides, and into the habit some publishers have of rating this motor a little under what Kubota printed. Neither is fatal, provided the old unit gets looked at before anything is ordered.

The plate on its housing, the nine teeth, the direction of rotation and the shape of the mounting face answer more than any catalogue does, and a photographed enquiry comes back with carton pricing, stock on hand and a dispatch window attached.