Screamin’ Eagle® King 6 Performance Transmission – Race-Ready Upgrade for Touring, Softail & Dyna Models
Engineered for serious performance riders, the Screamin’ Eagle® Racing King 6 Transmission is Harley-Davidson’s race-developed 6-speed transmission—born from competition in the Mission King of the Baggers series. It delivers faster, smoother shifts and unmatched durability, with a +25% increase in torque capacity over stock.
- Delivered today (order Mon-Fri before 12:00, delivery between 17:00 and 22:00)
- Including shipping costs, sent by Jeff Harley Garage
- 30 days to change your mind and free returns
- Day and night customer service
Description
✅ Short Product Overview:
Engineered for serious performance riders, the Screamin’ Eagle® Racing King 6 Transmission is Harley-Davidson’s race-developed 6-speed transmission—born from competition in the Mission King of the Baggers series. It delivers faster, smoother shifts and unmatched durability, with a +25% increase in torque capacity over stock.
✅ Key Features & Benefits:
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🏁 Race-Tested Engineering
Developed by the Harley-Davidson Factory Race Team for use in professional bagger racing competition. -
💪 +25% Torque Capacity Boost
Built to handle higher output from performance engines and aggressive riding styles. -
⚙️ Smooth & Confident Shifting
Back-cut gear teeth and undercut lugs enhance shift precision, engagement, and reduce friction. -
🔩 Race-Tough Construction
Gears and shafts are super premium heat-treated and shot peened for maximum strength, durability, and long service life under stress. -
🧱 Bolt-In Installation
Direct-fit for many 2006–2024 Harley-Davidson models with minimal modification. -
🛠️ Upgraded Bearings + Screamin’ Eagle Branding
Includes bearing upgrades and a branded bearing door for performance and aesthetics.
✅ Fitment Information:
✔️ Fits the following Harley-Davidson® models:
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2007–2024 Touring (excluding ’23-later Center-Cooled Touring)
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2007–2024 Softail®
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2006–2017 Dyna®
❗ Note:
Installation on Twin Cam models requires reusing the OEM shift drum and separate purchase of two Lock Plate Fasteners (P/N 35259-06).
Installation also requires Gasket Installation Kit (P/N 36300043 – sold separately).
✅ What’s Included:
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King 6 Gear Set
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Main Drive Gear Assembly
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Installation Instructions
✅ Additional Notes:
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Transmission gears and shafts may have a blue coating, which is a harmless manufacturing aid. Slight oil discoloration during the first fluid change is normal and does not impact transmission or oil performance.
✅ Installation Requirements:
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Gasket Installation Kit P/N 36300043 (sold separately)
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Dealer or professional installation strongly recommended
✅ Warranty:
🛡️ 1-Year Limited Warranty
Derrick L. – Austin, TX –
Absolutely love this transmission. It’s like putting a performance gearbox in a race car. Precise, responsive, and handles high RPMs with no problem. My only regret is not doing it sooner!
Mike P. – Mobile, AL –
Performance is undeniably better, but it’s louder than I expected. Might be normal for this kind of build, but it caught me off guard. I’d recommend this to racers and aggressive riders—not necessarily the average weekend cruiser.
Angela M. – Tampa, FL –
Super smooth shifts and improved torque handling make this a winner. No more clunky downshifts like the stock gearbox. If you’re looking to push your engine mods to the next level, this transmission is the missing piece.