S&S Cycle 68mm throttle body for 2017+ Harley-Davidson Milwaukee-Eight engines, a direct bolt-in replacement for the factory by-wire throttle assembly. Larger bore diameter improves air intake flow and throttle response on fuel-injected M8 platforms.
Features
68mm bore diameter
Direct replacement for stock M8 by-wire throttle
Fits 2017+ Harley Milwaukee-Eight engines
Bolt-in installation
Specifications
Brand: S&S Cycle
Manufacturer Part #: 170-0543
Bore Diameter: 68mm
Weight: 5 lb
Category: Engine Components / Throttle Bodies
Fitment
Fits 2017 and newer Harley-Davidson models with Milwaukee-Eight (M8) engines that use the factory by-wire throttle assembly.
Frequently Asked Questions
Will this fit my 2016 or older Harley?
No — this throttle body is designed for 2017+ Milwaukee-Eight engines. Twin Cam models require a different S&S throttle body.
Do I need to rejet or retune after installing this?
Fuel mapping adjustments may improve performance with the larger bore. Consult with your tuner or ECM programmer for optimal results.
Is this a direct bolt-in replacement?
Yes — this throttle body mounts directly to the factory intake manifold without modifications.
What's the weight difference from stock?
This unit weighs 5 lbs. Compare to your stock throttle assembly specs for the exact weight savings.
BRAND
S&S Cycle
TYPE
Throttle Bodies
SKU
T14-661678
WEIGHT
5.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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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.
S&S Cycle Throttle Bodies — Harle...
$754.95
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