McCulloch 3/8 Spur Sprocket 7 Tooth with Bearing 10-10 700

Description

Spur sprocket for McCulloch chainsaws, 3/8 pitch, seven tooth, supplied with the needle bearing. Replaces McCulloch part numbers 300878 and 214979. Fits 1-10, 2-10, 3-10, 4-10, 5-10, 6-10, 7-10, 8-10, 9-10, 10-10, 150, 160, 355, 365, 375, 515, 605, 610, 650, 655, 700, 805, 850, 855, Pro Mac 55, Pro Mac 60, SP-55, SP-70, Timber Bear and Eager Beaver 3.7. Count the teeth on the sprocket you are replacing before you order. This is a seven tooth spur. Some of the smaller McCulloch saws use a 3/8 six tooth, which is a separate part - the pitch is the same and the tooth count is not. This is 3/8 standard pitch. It is not .325 and it is not .404, and it will not run 3/8 low profile chain, which is what the Mini Mac saws use. The pitch is stamped on the drive links of your chain. A worn spur sprocket throws chain and wears bar rails, and it will chew through a new chain quickly. If there are visible steps worn into the tooth faces, replace it while the clutch is off. Clutch drum, washers and the retaining clip are not included.