Clutch & Components
Sierra 18-2220 Sliding Clutch for Johnson/Evinrude V4 & OMC Stringer Outboards
What Are Clutch & Components?
The clutch is one of the most mechanically demanding systems in any powersports engine. Whether you're riding a motorcycle, dirt bike, ATV, or UTV, the clutch is responsible for transferring engine power to the drivetrain — engaging and disengaging that connection hundreds or thousands of times per ride. Over time, friction plates wear, springs lose tension, and clutch baskets can develop grooves that cause inconsistent engagement. When that happens, a properly rebuilt clutch isn't just a performance upgrade — it's a necessity.
The Clutch & Components category covers everything needed to service, rebuild, or upgrade a powersports wet clutch system. This includes friction plates, steel drive plates, pressure plates, clutch springs, inner hubs, clutch baskets, full rebuild kits, and specialty clutch tools. Whether you're dealing with a slipping clutch, chatter at low RPM, or simply logging preventive maintenance miles, understanding what goes into a quality clutch rebuild can make a significant difference in ride quality and engine longevity.
What to Consider When Shopping Clutch Parts
- Friction Material: Clutch friction plates come in cork, aramid (Kevlar®), and carbon fiber variants. Cork suits everyday street riding, aramid offers a step up in durability for performance applications, and carbon fiber is the go-to choice for racing and high-heat environments.
- Stack Height: A proper clutch rebuild matches the original stack height of friction and steel plates. Mixing individual plates from different manufacturers can result in an out-of-spec stack and lead to slippage or dragging.
- Springs: Clutch springs dictate clamping force. Uprated springs improve power transfer under aggressive riding but can increase lever effort. Many performance kits include springs rated 10–15% stiffer than stock.
- Complete Kits vs. Individual Parts: Full rebuild kits take the guesswork out of matching components. For engines that have been slipping for some time, a complete kit — including friction plates, steel plates, and springs — is almost always the better choice over replacing individual pieces.
- Clutch Baskets: The basket itself can develop notches from plate tabs, causing snappy or jerky engagement. Forged replacement baskets offer significantly improved durability over cast OEM units.
Top Brands in Clutch & Components
EBC is one of the most recognized names in powersports clutch components, offering a comprehensive lineup of kits ranging from OEM-style CK Series replacements to high-performance DRC rebuild kits and race-focused carbon fiber CKF sets. EBC's clutch products feature their signature alloy particle-impregnated friction facings designed to resist burn-up and slippage, along with pin-planished steel separator plates that improve oil distribution across the clutch surfaces.
Wiseco Pistons brings its deep engineering heritage to the clutch category with a full line of forged clutch baskets, inner hubs, pressure plates, and complete clutch pack kits. Wiseco's clutch components are built to OEM tolerances and proven at every level of dirt bike and ATV competition, making them a trusted choice for riders who demand race-bred quality in their drivetrain.