OEM Part Number: 501628301 Replaces Previous OEM Part Numbers: 530057905 Fits Poulan Models: P3314 (Type 1), P3314 (Type 2), P3314WS (Type 1), P3416 (Type 2), P3816 (Type 1), P3818, P3818AV (Type 1), P4018, P4018, P4018AV, P4018AV, P4018AVBH, P4018WM (Type 1), P4018WT Fits Jonsered Model: CS2138 C Encases the clutch in the models; When the engine gets up to a certain speed the clutch will engage the Drum Assembly and the chain will start to spin. The sprocket which is part of the Drum Assembly, is the part that drives the chain. The 3/8 indicates the pitch of the chain that is needed for the saw.
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Item# : SPM16123972424
Model # : 1