Stihl 3/8" Picco 6 Tooth Spur Sprocket Kit - MS201, MS201T

Restore ultra-responsive power transfer and flawless throttle engagement to your professional climbing saw with the genuine OEM STIHL 3/8" Picco 6-Tooth Spur Sprocket Kit. Specifically designed to match the severe, high-RPM output of the top-tier 1146- and 1145-series engine platforms, this factory replacement drum fits the world-class MS 201, MS 201 T, MS 201 C, and MS 201 TC production saws. Replacing your notched or heavily grooved drive spur minimizes internal clutch face slip, prevents power loss in the cut, and protects your premium cutting loops from erratic binding.

This original equipment manufacturer assembly features a precision-machined 6-tooth spur gear integrated directly onto a structurally reinforced steel drum shell. The single-piece machined drum architecture provides exceptional concentricity, delivering an ultra-smooth, high-torque chain flow across the guide bar rail. Case-hardened to meet demanding pro-grade specifications, the spur tooth pathways guide your 3/8" Picco chassis drive links cleanly into alignment, eliminating high-speed chatter and preventing premature chain stretch.

True OEM Engineering vs. Soft Aftermarket Metal: High-production production arbor work forces chainsaws through harsh, high-torque cycles that will quickly deform un-hardened aftermarket alloys. Imprecise non-OEM parts introduce loose tolerances on the crankshaft, causing harmonic vibrations that rapidly destroy the inner needle cage bearing, score the oil pump drive gear, and fatigue the internal centrifugal clutch shoes. A genuine STIHL drive assembly guarantees absolute structural concentricity to safeguard your professional powerhead investment.

Configuration & Assembly Note: Designed exclusively for STIHL professional models configured with a 3/8" Low Profile (Picco) pitch chain loop (.043" or .050" gauge). This setup will not accept standard 1/4" Picco or full-profile .375" professional chain layouts. This genuine factory kit consists of the integrated 6T spur sprocket drum body ready for direct drop-in installation.

Key Features & Benefits

• Torque-Optimized 6-Tooth Configuration: Engineered to provide excellent mechanical leverage, maintaining high cutting velocity and preventing engine bogging under heavy torque loads.
• Unified Single-Piece Machined Structure: Integrated steel construction provides exceptional concentricity, preventing power loss and balancing centrifugal clutch dynamics.
• 100% Genuine OEM STIHL Manufacture: Crafted from proprietary heat-treated high-carbon steel to ensure long-lasting durability against severe commercial wear tracks.
• Smooth Drive Link Tracking: Hardened guide pathways cradle the chain chassis evenly, minimizing operational heat, friction, and localized guide bar rail wear.
• Exact Crankshaft Interface: Inner hub bore dimensions match factory specifications perfectly to deliver a perfectly balanced, vibration-free rotation.
• Pro-Grade Jobsite Insurance: Eliminates unexpected equipment failure and costly crew downtime on high-stakes tree care and bucket operations.

Technical Specifications & System Components