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S&S CYCLE SKU: T14-661541

S&S Cycle 70mm Throttle Body - Harley Dyna

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$1,165.95
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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.

Upgrade your fuel-injected 2006 and newer Harley-Davidson Dyna with the S&S Cycle 70mm Throttle Body, a direct bolt-on replacement designed to significantly increase airflow and sharpen throttle response.

Why riders pick this

  • 70mm bore for significant airflow increase
  • Direct bolt-on fit for 2006+ Dyna models
  • Enhances throttle response and engine performance
  • Engineered for seamless integration with stock EFI
  • S&S Cycle quality and durability

The S&S Cycle 70mm Throttle Body is engineered as a direct bolt-on replacement for 2006 and newer fuel-injected Harley-Davidson Dyna models. This larger bore throttle body is designed to deliver a substantial increase in airflow compared to stock units, resulting in improved engine performance and a more responsive feel from your throttle. Built with S&S Cycle's renowned quality control and engineering, it integrates seamlessly with your existing fuel injection system.

Enhanced Airflow for Performance

  • 70mm bore diameter for increased airflow
  • Direct bolt-on fit for 2006+ fuel-injected Dyna models
  • Designed to improve throttle response
  • Backed by S&S Cycle quality and engineering

Simple Bolt-On Power

Upgrading to an S&S Cycle 70mm Throttle Body is a straightforward way to uncork more power from your fuel-injected Dyna. Its direct bolt-on design means you won't need complex modifications or adapters. While it's engineered to work with stock fuel injection, pairing it with a high-flow air cleaner and a performance exhaust, along with a custom tune, will allow you to maximize the benefits of the increased airflow and truly transform your Dyna's performance.

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 170-0291
  • Weight: 3.11 lb
  • Category: Engine Components / Throttle Bodies

Common questions

Will this throttle body fit my carbureted Dyna model?

No, these S&S Cycle throttle bodies are specifically engineered for fuel-injected Harley-Davidson Dyna models from 2006 and newer. Carbureted Dynas require a different intake solution.

Do I need a fuel tuner or custom mapping after installation?

These throttle bodies are designed to work with stock fuel injection. While a fuel tune may further optimize performance and is generally recommended after intake modifications, it is not strictly required for operation.

Is this a difficult installation?

No, this S&S Cycle throttle body is designed as a direct bolt-on replacement for compatible Dyna models, simplifying the installation process. Basic mechanical knowledge and tools are generally sufficient.

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.
BRANDS&S Cycle
TYPEThrottle Bodies
SKUT14-661541
WEIGHT3.11 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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Nov 25, 2024

Not at all worth it

Bought this for my 2003 ultra classic...s&s 97" big bore kit, s&s 510 cam, s&s 2-1 sidewinder, and ness big sucker. After countless attempts with different maps and 800 plus miles, bike still runs poorly, dies at stops and cannot idle properly, I know this may have worked for a lot of people, for myself, it has not worked at all it's the same as a v&h fuelpak. Bike overheats and throttle response is terrible. We've even swapped out parts and it always did the same thing. Put my old tuner on and bike starts, idles, and runs perfectly.

— Drew P