Sprocket Centre Drive, Complete kit fits Stihl courier 100 Model SN25-63

Model SN25-63

Fits: Dolmar 109

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Fits: Ryobi RFS4518 and RFS5418 model chainsaws

Husqvarna: 40

Sprocket Centre Drive, Complete kit fits Stihl courier 100 Model SN25-63PLEASE NOTE Sprockets are Non Stocked Special Order Items. We order in from supplier to fulfil your order, we do not offer exchange or refund on sprockets. Please ask if you require fitment advice before placing order. Upgrade to a centre drive sprocket A centre drive sprocket assembly has a replaceable drive rim. You can easily replace the rim when it wears down, without continually replacing the drum, as is the case with older style spur drive drum