BX120 V4 Boxer engine


KOLM ENGINE BX120 V4 Boxer Engine

Note: These products are custom made to order, please call us or email us for more information and to place an order

Product information "BX120 V4 Boxer Engine"

BX120-V4 was developed on the basis of the first BX100 model. It was equipped with Nicasil-coated cylinders and a modified body and has become a flagship for scale and towing models with a take-off weight of up to 23kg. The BX120-V4 engines impress through their top starting and running characteristics. This drive unit can be optionally equipped with a silencer. This version is advertised as a “whisper drive”. The smallest flat engine can be supplied with or without an electric starter. The add-on parts are red. They can also be ordered in black or blue.


Electric starter
Available with clockwise or counter-clockwise rotation.
Stainless steel silencer

Technical specifications:

Displacement: 120cm3
Cylinder bore: 44 mm
Stroke: 38 mm
Weight: approx. 3930g
Weight with ignition system: approx. 4112g
Weight with the onboard starter: approx. 4400g
Weight with the ignition system and on-board starter: 4582g
RPM range: 900-5500 depending on the propeller
Fuel mixture: 1:50
Bore prop hub: 6xM5 34mm circle


1x Engine BX120 V4

1x Ignition

1x Batterie counter cable for ignition

1x Prop Mounting kit 3

            1x Hub plate TK34

            1x Central screw L=60mm

            6x M5x50mm

            6x M5x55mm

2x Exhaust flange including fastening screws
2x Exhaust pipe bent 90°1x Gold contact sockets (only for engines with starter)

1x Conversion kit carburetor on housing pressure, instructions in the download area of the homepage belong
2x Aluminium link lever for joke flap
1x Gold contact sockets (only for engines with starter)

Additional Mounting gear for CARF Model