S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring
S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring - Image 2
S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring - Image 3
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S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring - Image 5
S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring - Image 6
S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring - Image 7
S&S Cycle

S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring

1 review|11 answered questions

Price range: $7,959.95 through $8,599.95

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3% CASH DISCOUNT

Usually Ships Within 1 - 3 Weeks
SKU: SS-T124 Brand: S&S Cycle

S&S Cycle T124 Twin Cam Engine for 1999-2017 Harley-Davidson Dyna and Touring

The S&S T124 is built for riders who want everything a Twin Cam Dyna or Touring can offer and then some. With 124 cubic inches on tap, a cam-matched compression ratio tuned for either strong low-end torque or peak output, and easy-start gear drive cams that make every cold morning a non-event, this engine changes the character of the bike it goes into.

Key Features
  • Not compatible with Harley-Davidson Softail models or Twin-Cooled models — fits Dyna and Touring platforms only; see fitment table for full details
  • 124-cubic-inch displacement for a commanding increase in horsepower and torque over stock Twin Cam engines
  • S&S Easy Start 585 or 640 gear drive cams — cam selection also determines compression ratio
  • 585 cam configuration: 10.2:1 compression — higher torque tuning, recommended for Touring applications
  • 640 cam configuration: 10.8:1 compression — higher output tuning for performance-focused builds
  • Electronic compression releases for effortless starting
  • Large cooling fins for improved thermal management
  • S&S forged rocker arms and high-flow oil pump
  • Gloss black rocker covers, gear cover, tappet blocks, and pushrod tubes
  • Uses stock intake, throttle body, and air cleaner — not included
  • Available in Black, Black Edition, Stone Gray, and Silver finishes (availability varies by model group)
  • Made in the USA
  • Two-year warranty
Technical Specifications
  • Displacement: 124 cubic inches
  • Compression Ratio — 585 Cams: 10.2:1
  • Compression Ratio — 640 Cams: 10.8:1
  • Cam Options: S&S Easy Start 585 gear drive or S&S Easy Start 640 gear drive
  • Cam Drive: Gear drive
  • Rocker Arms: S&S forged
  • Oil Pump: S&S high-flow
  • Compression Releases: Electronic
  • Intake / Throttle Body / Air Cleaner: Not included — uses stock components
  • Finish Options: Black, Black Edition, Stone Gray, Silver (availability varies by model group)
  • Dimensions — 1999-2006 Group, select finishes (L x W x H): 26.5″ x 24.56″ x 20.06″
  • Dimensions — 2007-2016 Touring Black (L x W x H): 26″ x 24″ x 20″
  • Dimensions — 2007-2016 Touring Black Edition / Black 640 / Dyna Black (L x W x H): 27″ x 25″ x 20″
  • Dimensions — 2006-2017 Dyna Black Edition (L x W x H): 26″ x 24″ x 20″
  • Emissions: Not legal for sale or use in California on pollution-controlled motor vehicles. Not legal for sale or use on any EPA pollution-controlled motor vehicle.
  • Origin: Made in USA
  • Warranty: Two years
Fitment Notes
  • Not compatible with any Harley-Davidson Softail model — this is an absolute exclusion regardless of year
  • Not compatible with Twin-Cooled Touring models (select 2014-2016 models)
  • Three fitment groups apply — select the correct variation for your year and platform: 1999-2006 non-Softail Twin Cam (except 2006 Dyna); 2006-2017 Dyna; 2007-2016 Touring
  • Cam selection (585 or 640) affects compression ratio in addition to power character — select based on intended application
  • 585 cam variant is recommended for Touring applications where low-end torque is the priority
  • Stone Gray finish is available for 2007-2016 Touring only; Silver is available for 1999-2006 group only
  • Uses stock intake, throttle body, and air cleaner — these components are not included
  • Review the Fitment tab for a complete year and model breakdown
Fitment
Compatible with 1999-2017 Harley-Davidson Twin Cam Dyna and Touring platforms. Not compatible with any Softail model. Not compatible with Twin-Cooled models. Select the correct variation for your year group: 1999-2006 non-Softail Twin Cam (except 2006 Dyna); 2006-2017 Dyna (640 cams only); 2007-2016 Touring. Note: Fitment data was not supplied for this product and has been reconstructed from S&S Cycle documentation and variation attribute labels. Catalog owner must verify before publishing.
Harley-Davidson Dyna — 1999-2005 (Use 1999-2006 Variation)
Years Model Variant Cam Options
1999-2005 Dyna Super Glide FXD 585 or 640
1999-2005 Dyna Low Rider FXDL 585 or 640
1999-2005 Dyna Wide Glide FXDWG 585 or 640
1999-2001 Dyna Super Glide Sport FXDX 585 or 640
2001 Dyna Super Glide T-Sport FXDXT 585 or 640
1999-2000 Dyna Convertible FXDS-CONV 585 or 640
Harley-Davidson Touring — 1999-2006 (Use 1999-2006 Variation)
Years Model Variant Cam Options
1999-2006 Electra Glide Standard FLHT 585 or 640
1999-2006 Electra Glide Classic FLHTC 585 or 640
1999-2006 Electra Glide Ultra Classic FLHTCU 585 or 640
1999-2006 Road King FLHR 585 or 640
1999-2006 Road King Classic FLHRC 585 or 640
1999-2006 Road Glide FLTR 585 or 640
Harley-Davidson Dyna — 2006-2017 (Use 2006-2017 Dyna Variation)
Years Model Variant Cam Options
2006-2017 Dyna Super Glide FXD 640 only
2006-2017 Dyna Street Bob FXDB 640 only
2006-2014 Dyna Super Glide Custom FXDC 640 only
2008-2017 Dyna Fat Bob FXDF 640 only
2006-2017 Dyna Low Rider FXDL 640 only
2006-2017 Dyna Wide Glide FXDWG 640 only
Harley-Davidson Touring — 2007-2016 (Use 2007-2016 Touring Variation)
Years Model Variant Cam Options
2007-2013 Electra Glide Standard FLHT 585 or 640
2007-2013 Electra Glide Classic FLHTC 585 or 640
2007-2013 Electra Glide Ultra Classic FLHTCU 585 or 640
2007-2016 Road King FLHR 585 or 640
2007-2016 Road King Classic FLHRC 585 or 640
2007-2016 Street Glide FLHX 585 or 640
2011-2016 Street Glide Special FLHXS 585 or 640
2009-2016 Road Glide Custom FLTRX 585 or 640
2014-2016 Ultra Limited (Twin-Cooled) FLHTK Not compatible
2014-2016 Ultra Classic (Twin-Cooled) FLHTCU Not compatible
Excluded — Not Compatible: All Harley-Davidson Softail models (all years). All Twin-Cooled Touring models.
Weight N/A
Dimensions N/A
Color/Finish

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Model

1999-2006 585 Cams (Except 06 Dyna), 1999-2006 640 Cams (Except 06 Dyna), 2006-2017 Dyna 640 Cams, 2007-2016 Touring 585 Cams, 2007-2016 Touring 640 Cams

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  1. Dave H. –

    My FXDLS will love this upgrade!

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Q & A

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I have a 2016 Ultra limited with the stock motor 103 and liquid cooled heads, will this eliminate the need for the radiator and fans. Also it states that it uses the stock intake, throttle body and air cleaner so is this a direct swap aka plug n play ? Roawarrior asked on December 3, 2024

Not compatible with Twin-Cooled models

 Twisted Choppers answered on December 5, 2024 store manager
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What do I need or is recommended with this? I have a 2010 Road Glide with a D&D Fat Cat 2-1 and an open air cleaner. Thomas Slayton asked on August 31, 2024

Here is a list of items needed/recommended for 2007-2016 Touring models
Sprocket shaft spacer: https://twistedchoppers.com/shop/sprocket-shaft-spacer-for-ss-cycle-touring-model-t-series-engines/
Transmission drilling fixture: https://twistedchoppers.com/shop/ss-cycle-transmission-drilling-fixture-kit-for-t-series-engines-2007-2016-touring/
Oil line kit: https://twistedchoppers.com/shop/ss-cycle-oil-line-kit-for-t-series-engines-2007-2016-touring/
Clutch spring diaphragm: https://twistedchoppers.com/shop/ss-cycle-heavy-duty-clutch-diaphragm-spring-for-98-16-hd-big-twin-models/
66mm induction kit: https://twistedchoppers.com/shop/66mm-induction-kit-for-ss-cycle-t124-engines/

 Joe Skinner answered on August 31, 2024 store manager
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Does the T-124 with 640 cams come with roller rockers? Mark Souza asked on July 29, 2024

These come with the standard forged rockers, not rollers.

 Joe Skinner answered on July 30, 2024 store manager
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Will this work in 2011 ultra limited? CHRIS JACKSON asked on June 21, 2024

Yes, this will work.

 Joe Skinner answered on June 21, 2024 store manager
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I have a 2001 Electra glide fuel injected. Would this T124 fit and if so, what else would I need to purchase and or upgrade so when I take it to be installed, I will not have any surprises or delays. My bike is all stock except Rinehart slip-on exhaust. Thanks in advance! David Nichols asked on June 3, 2024

The following items are recommended by S&S.
Oil line kit: https://twistedchoppers.com/shop/ss-oil-line-kit-for-2007-2016-touring-model-t-series-engines/
Drilling fixture: https://twistedchoppers.com/shop/ss-transmission-drilling-fixture-kit-for-2007-2016-touring-model-t-series-engines/
Sprocket shaft spacer: https://twistedchoppers.com/shop/sprocket-shaft-spacer-for-ss-touring-model-t-series-engines/
We also recommend a high flow air cleaner and a tuner such as a ThunderMax or Dynojet with auto tune capability.

 Joe Skinner answered on June 8, 2024 store manager
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