K'NEX Gears

The K'NEX gears on this page are available to buy in the USA and Canada. All dimensions shown are approximate. Click on any image to view a larger picture.

We recommend that you also visit the shop operated by the manufacturers of K'NEX at www.knex.com before purchasing Classic K'NEX parts on this website. Their prices are lower than ours, but we do offer a number of parts and instruction books that they no longer stock.

If you live outside the USA and Canada, you can buy these parts in our K'NEX shop (GB Pounds) or in our K'NEX Shop (Euros).

K'NEX Gear small Dark blue
Price: $0.54 Age 5+ K91317 Available: 2181 View Handy Hint
Small K'NEX dark blue gear approx. 25mm diameter. 14 teeth. A K90900 tan clip should be used to make the gear wheel turn with the rod on which it is placed.

K'NEX Gear small Gold metallic
Price: $0.54 Age 5+ K91313 Available: 176 View Handy Hint
Small K'NEX gold metallic gear approx. 25mm diameter. 14 teeth. A K90900 tan clip should be used to make the gear wheel turn with the rod on which it is placed.

K'NEX Gear small Push-on Grey
Price: $0.14 Age 5+ K90988 Available: 4760 View Handy Hint
Small K'NEX grey gear approx. 25mm diameter. 14 teeth. The gear provides a push fit onto a rod.

K'NEX Gear Small Snap-on Light grey
Price: $0.65 Age 7+ K91324 Available: 99 only
K'NEX Gear Small Snap-on Light grey. Similar to K90988, but fits onto the end of a classic K'NEX rod.

K'NEX Gear medium Red
Price: $1.21 Age 5+ K90985 Available: 957 View Handy Hint
Medium-sized K'NEX red gear approx. 55mm (2.25in) diameter. 34 teeth. The gear should be anchored to a rod with a tan connector, and may be used to drive another K'NEX gear wheel, or K'NEX chain.

K'NEX Crown gear medium Yellow
Price: $1.38 Age 5+ K90993 Available: 1879 View Handy Hint
K'NEX yellow crown gear, 55mm (2 1/4in) diameter. 34 teeth. The teeth of the gear wheel extend beyond the edge of the disc, allowing the gear to be used to drive axles at 90 degrees to the driving axle, as well as axles parallel to the driving axle.

K'NEX Crown gear medium Grey
Price: $1.51 Age 5+ K91993 Available: 322 only View Handy Hint
K'NEX grey crown gear, 55mm (2 1/4in) diameter. 34 teeth. The teeth of the gear wheel extend beyond the edge of the disc, allowing the gear to be used to drive axles at 90 degrees to the driving axle, as well as axles parallel to the driving axle.

K'NEX Crown gear large Green
Price: $4.25 Age 5+ K90996 Available: 18
Large green K'NEX gear, 130mm diameter. A K90900 tan clip should be used to make the gear wheel turn with the rod on which it is placed.

K'NEX Crown gear large Yellow
Price: $2.30 Age 5+ K90998 Available: 96 View Handy Hint
Large yellow K'NEX gear, 130mm diameter. 82 teeth.

K'NEX Crown gear (partial) Orange
Price: $5.69 Age 5+ K91700 Available: 25 only
K'NEX Gear Orange. Is a crown gear for nearly 50% of its perimeter, and an ordinary gear for the rest. Weird!