#415, 415H, Z72, 410, 410H, #41 sprockets have the same OD as #40 Sprockets.
They all have the same 1/2" Pitch and only the width of the teeth change.
Click on the link below to see the chart.
#40 Sprocket Information ONLY.
Click on the image to enlarge or print off.
This is NOT for sale - INFORMATION ONLY.
Do Not add it to the shopping cart.
It will add weight to the order and cost you $$$ that is Non-Refundable.