The kit can be built to run on the Kato 109 chassis. No chassis is supplied in this kit. You may need to file/sand the ends of the chassis to make it fit under the body. The N gauge couplings will also need to be removed.
OO9 009 Narrow Gauge Baguley Drewry Inspired Diesel Body For KATO's 103 / 109
OO9 009 Narrow Gauge Locomotive Body AW 12 Including KATO 11-109 chassis
OO9 / 009 Narrow Gauge "Bong Bong" Logging Loco Body Inc KATO 11-109 Chassis
OO9 / 009 Narrow Gauge "Cackler" Hunslet Body Shell For KATO's 103 / 109 Chassis
OO9 / 009 Narrow Gauge Climax Vertical Boiler Locomotive Body For KATO 103 109
OO9/ 009 Narrow Gauge "Tryfan" Hunslet Mining Locomotive Body for a KATO 103/109