Mitsuboshi are 1 off the belt suppliers used by Kubota.
Belt for 42" Cutting Deck Fits Kubota GR1600 ID Part Number K5253-71420
SGL Belt for 42"" Cutting Deck Fits Kubota GR1600-II Part Number K5253-71420
ISE Replacement Deck Belt for Kubota GR1600 Replaces Part Number: K5253-71420
5" Mower Deck Gauge Wheel Replacement for Kubota GR1600 G2160 G18 G21, Anti Scalp Deck Wheel Kit 2-Pack, Fits OEM K5371-42110
2 Pack Deck Wheel K5371-42110 for Kubota GR1600 G2160 G18 G21, Black Mower Deck Wheels with Offset Hub, Smooth Tread Lawn Mower Replacement Parts for Garden Yard
Anti-Scalp Roller Deck Wheel Kit Replacement for Kubota GR1600 G2160 G18 G21 Mower Deck, Fits OEM K5371-42110, Offset Gauge Wheel
