I am pleased with this 509C hydraulic cam plate and cam kit. I bought it to convert to a hydraulic cam tensioners, thus replacing the failing mechanical cam chain tensioners in my '03 Harley Road King (21k miles). This was my first attempt at undertaking such an effort, but it all went very smoothly. The instructions are pretty good. Couple them with the Harley service manual and the online video resources and the job will go much easier. One of the reasons I chose this kit was because S&S thought through all of the needs for the job and included everything in one easy kit, it had everything, lacked nothing. After a successful install there was a noticeable difference in the torque and power and I can ride now, rest assured, that my bike (and investment) is not in jeopardy of any component failures. I highly recommend this product.
S&S Cycle Gear Drive Cams - Harley Twin Cam Dyna
About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
Step up your Twin Cam engine's reliability and precision with S&S Cycle Gear Drive Cams for 1999-2006 Harley Dyna models. This gear-driven camshaft system is a direct bolt-in upgrade that eliminates common timing chain issues. By removing chain lash and tensioner shoe wear, it ensures more accurate valve timing and a more robust valvetrain.
Why riders pick this
- Eliminates timing chain lash and tensioner wear
- Improves valve timing accuracy
- Direct bolt-in upgrade for specified models
- Includes complete camshaft and outer cam drive gear kits
The S&S Cycle Gear Drive Cams offer a significant upgrade over traditional chain-driven systems, providing a rock-solid foundation for your engine's valvetrain. Riders looking for maximum reliability and consistent performance will appreciate the elimination of timing chain lash and the associated wear of tensioner shoes. This system delivers precise valve timing, which is crucial for maximizing engine efficiency and power output.
Enhanced Valvetrain Reliability
- Gear-driven design completely eliminates timing chain lash
- Removes tensioner shoes, preventing common wear issues
- Improves valve timing accuracy for consistent performance
- Includes camshaft installation kit for a complete upgrade
A Foundation for Performance
Installing S&S Cycle Gear Drive Cams is a foundational upgrade for any 1999-2006 Harley Dyna owner serious about engine longevity and performance. While it enhances reliability, precise valve timing also contributes to better throttle response and overall power delivery. This system pairs well with other engine modifications, providing a stable platform for further performance enhancements.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 106-5896
- Category: Engine Components / Cam Gears
- Weight: 0.7 lb
Common questions
What Harley-Davidson models are these gear drive cams compatible with?
These S&S Cycle Gear Drive Cams are specifically designed for 1999-2006 Harley-Davidson Dyna models. Please use our Shop by Bike tool to confirm exact fitment for your motorcycle.
Do I need special tools or expertise for installation?
Installation of cam gears requires a solid understanding of engine mechanics and specific tools for timing. While it's a bolt-in upgrade, many riders opt for professional installation to ensure correct timing and function.
Will installing these gear drive cams increase my engine's horsepower?
The primary benefit of these gear drive cams is improved valve timing accuracy and enhanced valvetrain reliability by eliminating chain lash and tensioner wear. While this contributes to more consistent power, specific horsepower gains depend on your overall engine tuning and other modifications.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | S&S Cycle |
| TYPE | Cam Gears |
| SKU | T14-663425 |
| WEIGHT | 0.7 lb |
Extremely nice kit. Takes a lot of the guesswork out of buying all these parts separately. Very nicely packaged. Parts appear to be high quality as well. I purchased this because I have a 2004 Softail Heritage with the Twin cam 88. It still had the original mechanical cam chain tensioners. At 33k miles, it was time for an upgrade. S&S makes the best aftermarket parts in the business. One thing to be noted: this kit does not include new timing chains. Everything you see in the picture is included in the kit. Also comes with quite a few various O-rings and a whole bunch of loctite (2 little tubes of red, and 3 of blue). There’s 2 pretty big, generous tubes of engine assembly lube included as well. So, depending on your build, this kit probably has most of what you need. 10/10 I’d buy it again. I hope this helps. Keep the shiny side up, and the rubber side down Riders.
Great cam that woke up my Softail Deuce which is 88 ci. Bike has power and torque at a very wide range or RPM. So happy with it.
Kit has everything, instructions are great and bike runs strong. Oil pressure went from 5 psi at hot idle to over 20 psi
Nice Quality
Product seems great . The problem is didn’t come with instructions and QC code they give you goes to a blank site . Went to S&S website and Emailed them never got a response . Good thing for you tube and chat rooms .
S&S 509C
Wonderfull can for the 2003 Twin Cam 88, plenty of torque !
