S&S Cycle Throttle Bodies — Harley-Davidson Dyna Wide Glide, Dyna Low Rider, Dyna Super Glide (1983-2020)

S&S Cycle 70mm throttle bodies for Harley-Davidson Dyna models, a direct bolt-on replacement designed to increase airflow and throttle response on fuel-injected 2006 and newer platforms. engineered to work seamlessly with stock fuel injection without requiring additional tuning or adapters.

Features

• 70mm bore diameter
• Direct bolt-on fit for Dyna 2006+
• Increased airflow versus stock throttle bodies
• S&S Cycle quality control and engineering

Specifications

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

Fitment

Fits Harley-Davidson Dyna models 2006 and newer with fuel injection.

Frequently Asked Questions

Will this fit my Dyna with carburetors?

No — these throttle bodies are engineered for fuel-injected Dyna models 2006 and newer. Carbureted Dynas require a different solution.

Do I need a tuner or fuel mapping changes?

These throttle bodies are designed to work with stock fuel injection. A fuel tune may improve performance but is not required for operation.

Is this a direct bolt-on replacement?

Yes — they bolt directly in place of the stock throttle bodies without modifications or adapters needed.

What's the advantage over stock throttle bodies?

The 70mm bore increases airflow and throttle response compared to the smaller stock units, helping the engine breathe easier at wider throttle openings.