Classic K'NEX Motors

Classic K'NEX Motors

These are the classic K'NEX motors available. All dimensions shown are approximate. These are all new parts - we do not sell used KNEX.

The prices below exclude VAT (Value Added Tax).

Click on any image to display full details, view some examples of K’NEX models using motors, or find out what the Available figure means against each part.

K'NEX Spring motor

Ref: 92890

Hint M1

Available: only 32

To operate, just wind the axle backwards to coil the spring, and then let go.

A fast-rotating motor, for models that need high speed but low power, such as vehicles with small wheels, roundabouts, fans and helicopter blades.

K'NEX Battery Motor Red long lead

Ref: 92875

Hint M2

Available: Limit of 64

A K'NEX battery motor with a 116cm (3.8 foot) tethered lead, powered by two "AA" batteries (not included). 36rpm approx.

Can drive two axles simultaneously. Housed in a clear plastic case, so you can see how it works.

The tethered lead allows you either to attach the battery holder to your model, or to hold the battery holder in your hand remotely from the model.

K'NEX Battery Motor short lead

Ref: 20554

Hint M2

Available: Limit of 4

As K92875, but with a short 15cm (6 inch) lead. As used in Beasts Alive Tri Stego.

K'NEX Battery Motor Blue

Ref: 92840

Hint M4

Available: Limit of 32

Medium speed - 34rpm. As used in many K'NEX education sets, for motorised vehicles, etc. Requires two "AA" batteries (not included).

K'NEX Battery Motor Green

Ref: 22722

Hint M4

Available: Limit of 4

Medium speed - 45rpm. As used in most K'NEX roller coaster sets. Requires two "AA" batteries (not included).

K'NEX Battery Motor Silver

Ref: 20861

Hint M4

Available: Limit of 4

High speed - 190rpm. As usd in sets such as the Space Invasion coaster. Requires two "AA" batteries (not included).

K'NEX Battery motor Red

Ref: 2971001

Hint M4

Available: Limit of 2

High speed - 190rpm. Same speed as Battery motor Silver. As used in sets such as the K'NEX Revolution Ferris wheel. Requires two "AA" batteries (not included).

K'NEX Flywheel motor

Ref: 99238

Hint M14

Available: only 80

Fascinating K'NEX motor that operates from an internal flywheel. Pull back the string to start the flywheel spinning at high speed, then release it and watch the motor go!

Includes a built-in tyred wheel, and lugs to attach the motor to a K'NEX vehicle such as a dragster.

K'NEX Solar power kit

Ref: 92680J

Discontinued - Alternative

Kit that allows fascinating solar-powered K'NEX models to be built, including:

1 x 92660 K'NEX Solar motor and shaft
1 x 92680 K'NEX Solar panel
1 x 92655 K'NEX Solar capacitor
1 x 92670 K'NEX Solar lead

See K'NEX Investigating Solar Energy set for examples of K'NEX models that can be built using this kit.

4 parts per pack (approx)

K'NEX Motor 12v

Ref: 92815

Hint M3

Available: Limit of 4

More powerful, and cheaper to run, than the battery-powered K'NEX motors. 66rpm approx. Ideal for K'NEX display models. Includes a 90983 white gear wheel and a 90900 tan clip.

Requires a mains adaptor such as the 92815UK, 92815EU or 92815US Mains 12v Adaptor - see Handy Hint M3.

Mains adaptor Europe for K'NEX Motor 12v

Ref: 92815EU

Hint M3

Available: at least 8

For use in Mainland Europe. 2-pin 230v 1A. Consists of a 92815UK Mains adaptor UK plus a UK-to-Europe plug adaptor.

Mains adaptor UK for K'NEX Motor 12v

Ref: 92815UK

Hint M3

Available: at least 8

For use in UK. 3-pin 240v 1A. Adaptor supplied may vary in appearance from the one shown in the photo.

Mains adaptor US for K'NEX Motor 12v

Ref: 92815US

Hint M3

Available: Limit of 2

For use in USA with 92815 K'NEX 12v motor. 2-pin 120v. The adaptor may not be an exact match for the photo.

Note that it may be cheaper to buy an adaptor locally - see Handy Hint M3 for the specification.

K'NEX Motor 6v Blue

Ref: 2542001

Discontinued

6v blue motor, as used in the 52242 K'NEX Son of Serpent set.

Requires a suitable 6v mains adaptor, such as the 52242US Mains 6v Adaptor.

Mains adaptor US for 2542001 6v motor blue

Ref: 2542001US

Available: Limit of 2

Mains adaptor for the 2542001 6v blue motor, as used in the 52242 K'NEX Son of Serpent set.

Suitable only for use with a US 120v mains socket.

K'NEX Control motor

Ref: 92845

Hint M8

Available: only 32

This is a useful "control motor" version of the 92875 Tethered battery motor.

The motor can be programmed to go forwards or backwards via computer control devices such as Learn & Go or FlowGo.

The unit comprises a 6v motor in a clear case linked to a tethered lead, which terminates in 2 x 4mm plugs to connect the motor to the computer control device.

K'NEX STEM Explorations Vehicles building set

Ref: 79320

Age: 8+

Available: only 19

The K'NEX Vehicles building set includes two K'NEX motors.

The set allows 1-2 children to build 7 vehicle models with different power sources, including a spring motor, rubber band power, wind power and push-power.

Age with parental help: 6+

131 Classic K'NEX pieces - Cost per piece is

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K'NEX Solar motor Shaft

Ref: 90959

Hint M10

Available: Limit of 8

Shaft for 92660 K'NEX solar motor. Similar in size to a 90951 white rod, but dark red, with a hole in one end to fit tightly onto the spindle of the solar motor.