This LEGO®-compatible gearbox cap is a companion part for my
40-teeth ring gear.
The part shown in pictures is revision 1, which had tight holes that needed to be enlarged with a file before the part could be used. The part available for order is revision 2, with larger holes, but it was
not tested yet.
PRINT AT YOUR OWN RISK.
DISCLAIMER: This product is in no way endorsed by nor affiliated with the LEGO Group. The LEGO® and LEGO TECHNIC®trademarks are only named here to suggest this product is compatible with the LEGO® line of toys. It is an original design and not a copy of a branded product.