kekykm Twin Cam Extra Plate Clutch Kit for Harley Twin Cam 1999–2017 — +1 Friction & Steel Plate, Improved Grip

kekykm Twin Cam Extra Plate Friction Steel Clutch Kit is a drop-in aftermarket clutch pack that adds an extra friction and steel plate to improve grip, reduce slip, and deliver smoother, faster shifting on Harley Twin Cam and selected Evolution 1340 models.

This complete friction-and-steel plate kit replaces P/N 37980-10 and 307-30-10013 and fits Harley-Davidson Touring, Softail, Dyna, and Trike models with Twin Cam engines from 1999–2017, plus Evolution 1340 models from 1998–1999 (excluding bikes with slipper/assist clutches). Built with high-grade steel plates and premium composite friction discs, the kit increases clutch surface area and tightens the slip zone to give more confident engagement under heavy throttle or towing loads.

How does adding an extra plate change clutch performance?

Adding one friction and one steel plate raises total friction area by about 15%, which reduces the clutch’s slip zone and improves bite at engagement. That delivers crisper shifts, less fade under heat, and stronger power transfer when accelerating or carrying loads.

• 10 friction plates and 9 steel plates for enhanced surface contact
• Smaller slip zone for quicker, more positive engagement
• Improved heat resistance from composite friction material
• Better resistance to clutch fade during repeated hard shifts

Will this kit fit my Harley model and how do I confirm compatibility?

This aftermarket kit is designed as a direct replacement for the listed part numbers and fits Twin Cam-equipped Touring, Softail, Dyna, and Trike models from 1999–2017 and Evolution 1340 models from 1998–1999, excluding machines with slipper/assist clutches. Always cross-check your OEM part number or consult the fitment image provided to be certain.

• Replaces OEM P/N 37980-10 and 307-30-10013
• Compatible with 1999–2017 Twin Cam models and 1998–1999 Evo 1340
• Not compatible with slipper/assist clutch systems
• Use fitment graphic or OEM number to verify before purchase

What materials and durability can I expect from these plates?

The kit pairs durable steel plates with high-friction composite paper discs formulated for heat resistance and long life. These materials are selected to withstand repeated heavy use while maintaining consistent grab and minimizing wear compared to inexpensive alternatives.

• Steel plates made from hardened, wear-resistant steel
• Composite friction discs with high friction rating and heat tolerance
• Designed for longevity in demanding riding conditions
• Quality control aimed to match or exceed OEM performance

How difficult is installation and what preparation is recommended?

Installation is a direct replacement process for the original plates and is straightforward for a mechanic familiar with Harley clutch work. Friction plates should be soaked in motorcycle oil for at least five minutes before fitting, and follow the supplied instructions carefully—particularly the note about not reusing two specific rings from the stock clutch.

• Soak friction plates in oil for at least five minutes before install
• Direct replacement for the original clutch pack—no machining required
• Follow instructions: do not reinstall two stock clutch rings
• Customer support available for fitment or installation questions

Who is this for? Riders who push their Harley—tourers carrying passengers or luggage, weekend riders who enjoy aggressive upshifts, or builders seeking a durable, cost-effective clutch upgrade—will benefit most. If you want firmer engagement, reduced clutch slip, and smoother shifts without changing pressure plates or springs, this kekykm extra plate friction-steel clutch kit offers a practical upgrade that installs like the OEM kit while delivering improved real-world feel and control.