Grease Plug for Invacare Drivemotor Gearbox, 40mm

This is a 40mm grease plug for the gearbox of a Invacare Print M51 power chair (power wheel chair).

I could not find this replacement part on-line after hours of searching.

There is an factor of printer tolerance for this part. As designed and printed, this part fit tightly into the machined opening in the gearbox. I could not insert it by hand, but I could lightly tap it into place with a hammer. Your printer may produce a slightly different size.

The motor part numbers for my Mom's M51 were 1127395 (left) and 1127394 (right).

I suspect that this grease plug will work in any similar gearbox with a 40.0mm opening.