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Drivetrain & Transmission
Snowmobile Drivetrain & Transmission Parts
The drivetrain on a snowmobile is a purpose-built system unlike anything found on a wheeled vehicle. From the primary drive clutch that controls engagement and shift behavior through the driven clutch, drive belt, chaincase, and finally the drive axle and sprockets that put power to the track, every component in the system is tuned to work together as a precisely calibrated unit. When any part of that system is worn, out of spec, or mismatched, the entire drivetrain suffers. Belt life drops. Acceleration falls off. The sled feels sluggish and unresponsive where it used to feel crisp and immediate. Keeping the drivetrain in top condition is one of the highest-return maintenance investments a snowmobile owner can make, and getting the right parts when something needs attention is what we are here for.
The CVT clutch system on a snowmobile is one of the most misunderstood and most maintenance-neglected systems on the machine. Most riders replace drive belts reactively when they fail rather than proactively when they show wear, and most never service the primary and secondary clutch components that directly determine how long belts last and how well the sled performs across its full operating range. A clutch system that is clean, in proper alignment, and running the correct weights, springs, and helix for the conditions transforms how a sled feels to ride. Mad Lads Moto stocks a complete range of drivetrain and transmission components to keep your sled pulling strong all season. Here is what we carry:
- Drive Belts - OEM-spec and heavy duty replacement drive belts for all major snowmobile platforms, covering standard replacement and performance options for riders who demand more from their drivetrain in aggressive riding conditions.
- Primary Clutch Components - Primary clutch assemblies, clutch weights, rollers, springs, sheave components, and complete primary clutch rebuilds kits that restore proper engagement RPM and shift characteristics.
- Secondary Clutch Components - Secondary clutch assemblies, helix components, springs, and sheave parts that work in conjunction with the primary clutch to deliver smooth and responsive power transfer across the full operating range.
- Performance Clutch Kits - Complete clutch tuning kits with calibrated weights, springs, and helix components designed to optimize shift behavior for specific riding conditions including trail riding, deep powder, high altitude, and performance applications.
- Chaincase Components - Chaincase chains, sprockets, bearings, seals, and gaskets for the enclosed chain drive system that transfers power from the driven clutch to the drive axle on most snowmobile platforms.
- Drive Axle & Sprockets - Drive axle shafts, drive sprockets, and axle components that connect the chaincase output to the track drive system and determine track speed and torque delivery.
- Track Drive Components - Drive shaft components, drive shaft bearings, and associated hardware that make up the final link in the drivetrain between the engine and the snow.
- Clutch Tools & Accessories - Clutch puller tools, holding tools, clutch alignment tools, and specialty equipment required for proper clutch removal, installation, and alignment without damaging precision clutch components.
Chaincase maintenance is one of the most overlooked service items on a snowmobile and one of the most important. The chaincase oil lubricates the chain, sprockets, and bearings that transfer power from the driven clutch to the drive axle, and that oil picks up metal particles, moisture, and contaminants throughout the season. Most manufacturers recommend changing the chaincase oil every season at minimum, and more frequently for riders who put high miles on their sled or ride in conditions that introduce moisture into the system. Neglecting chaincase oil changes accelerates wear on the chain and sprockets and eventually leads to a chaincase failure that is far more expensive than a seasonal oil change. We stock drivetrain and transmission components for Ski-Doo, Polaris, Arctic Cat, Yamaha, and Lynx. Use our year, make, and model fitment tool to confirm fitment before you order.