This Chain Sprocket 1/4 inch (6.35 mm) Picco 7-tooth is a Genuine Stihl part designed for the Stihl MSA 160 C and MSA 200 C battery chainsaws. Made from hardened steel for wear resistance, it drives the chain accurately and ensures smooth power transfer from the motor to the cutting chain. The 7t profile matches 1/4 inch Picco chains for precise meshing and reduced vibration. It is a direct replacement that helps maintain cutting efficiency, chain life, and safe operation during routine maintenance or when a worn sprocket needs changing. Identified by OEM No. 1250 642 1200, it is built to Stihl’s specification for a reliable fit and consistent performance in everyday landscaping, arborist work, and property maintenance.

Key Features:
– Genuine Stihl part for assured compatibility and build quality (OEM No. 1250 642 1200)
– 1/4 inch (6.35 mm) Picco, 7-tooth drive for correct chain pitch engagement
– Hardened steel construction for high wear resistance and long service life
– Smooth, efficient power transfer to help maintain clean, consistent cuts
– Designed for Stihl battery saws for quiet, low-vibration operation when paired correctly
– Accurate machining for stable chain tracking and reduced premature chain stretch
– Straightforward like-for-like replacement during routine servicing
– Helps protect the motor and bar by minimising slippage and uneven load

Typical Applications:
Ideal for replacing a worn or damaged drive sprocket on Stihl compact battery chainsaws used for pruning, light felling of small-diameter timber, firewood processing, and grounds maintenance. Suitable for professional landscapers, arborists, facilities teams, and DIY users who need reliable chain drive performance and consistent cutting results.

Also known as:
Drive sprocket, clutch sprocket, chain drive gear, 7-tooth Picco sprocket, 1/4 inch P sprocket, chainsaw drive gear, replacement chain sprocket, Stihl sprocket wheel.

Fits Models:
MSA 160 C
MSA 200 C

Alternate Part Numbers:
1250-642-1200, 12506421200

Product Specifications