Kubota Tractor Starter Motor | OEM 1G023-63010

Compact diesels are easy to crank and easy to underestimate, which is how a BX1500D or a GR2120 ends up with whatever the counter had on the shelf instead of the part the engine was built for. 1G023-63010 is that part: a Denso PMGR permanent-magnet reduction motor rated at 1.0 kW on twelve volts, with a nine-tooth pinion turning clockwise and 3.8 kg of motor to hang on the block, sized for the D722 at 21 hp and the D782 at 18 hp. It went into the BX1500D between 2003 and 2005, into the G2160 and TG1860 garden tractors, the GR2100, GR2110 and GR2120, and the ZD18 and ZD21 zero-turn mowers of 2001 to 2006.

OEM and Search References

• Primary Kubota reference: 1G023-63010, later revised to 1G023-63011 and 1G023-63012

• Numbers from the earlier G and TG books: 67980-31150, 67980-31151 and 67980-31152

• Industrial applications cross to 6A320-59212 and to K3511-81410

• Denso and aftermarket: 228000-5910, 228000-7090, SND0338, 22986517, Lester 18417

• Ratings: 12 V, 1.0 kW, 9 teeth, CW, Denso PMGR permanent-magnet reduction, 3.8 kg

• Built for the D722 at 21 hp and the D782 at 18 hp

• Fitment: BX1500D 2003-2005, G2160 2001-2008, TG1860 1998-2003, GR2100 2005-2007, GR2110 2008-2009, GR2120 2010-2014, ZD18 and ZD21 2001-2006

Fitment and Purchase Checks

The 1G069 confusion is the reason this number deserves a second look before it goes into a cart. Both motors are nine-tooth, both turn clockwise, both come from Denso, so a photograph of the flange proves almost nothing on its own; what does prove something is the reduction type and the weight, because a planetary 1.1 kW unit is a substantially heavier casting than this 3.8 kg magnet motor and the difference is obvious the moment it comes off the machine. Put the old plate and the engine model into the enquiry, and the reply settles stock, carton price and dispatch against them.