Product Description
Dynojet QuickShifter Kit for Harley-Davidson Big Twin Models
Upgrade your Harley-Davidson with faster, smoother clutchless upshifts using the Dynojet QuickShifter Kit. Designed as a complete stand-alone system for Harley-Davidson Big Twin models, the Dynojet 4-134 allows full-throttle upshifting without rolling off the throttle or pulling in the clutch.
When pressure is applied to the shift lever, the system momentarily interrupts fuel delivery to unload the transmission and allow a quick, smooth upshift with minimal loss of acceleration. The kit plugs directly into the fuel injectors using OEM-style connectors, eliminating the need to cut or splice the factory wiring. Shift sensitivity and activation force can also be adjusted directly on the device without connecting a computer.
Fitment
- Fits select 2005-2025 Harley-Davidson EFI Big Twin models
- Fits select Harley-Davidson Touring models including Road Glide, Street Glide, Road King, Electra Glide, Ultra Limited and Road Glide Limited applications
- Fits select Harley-Davidson Softail models including Fat Boy, Heritage Classic, Breakout, Fat Bob, Softail Slim, Sport Glide and Low Rider ST applications
- Fits select Harley-Davidson Dyna models including Low Rider, Low Rider S, Fat Bob, Super Glide Custom and Switchback applications
- Also fits select Harley-Davidson Trike applications
- Verify exact year and model compatibility before ordering
Features
- Complete stand-alone quickshifter system for Harley-Davidson Big Twin models
- Allows quick clutchless upshifts without rolling off the throttle
- Momentarily interrupts fuel delivery to unload the transmission during shifts
- Provides faster, smoother gear changes with minimal loss of acceleration
- OEM-style connectors provide a clean plug-and-play installation
- No cutting or splicing of the factory wiring required
- Adjustable shift sensitivity and activation force
- Adjustments can be made directly on the device without a computer
- No additional Dynojet tuning device required
- Kit includes shift sensor, shift rod, shift kill module and ground cable
- Dynojet Part Number: 4-134
Fitment
| 2025 | Harley-Davidson | FLHXU Street Glide Ultra | - | - |
| 2025 | Harley-Davidson | FLFB Fat Boy 117 | - | - |
| 2025 | Harley-Davidson | FLHC Heritage Classic 117 | - | - |
| 2023-2025 | Harley-Davidson | FXBR Breakout 117 | - | - |
| 2023-2025 | Harley-Davidson | FXLRST Low Rider ST 117 | - | - |
| 2023-2025 | Harley-Davidson | FLTRT Road Glide 3 | - | - |
| 2023 | Harley-Davidson | FLHXST Street Glide ST | - | - |
| 2023 | Harley-Davidson | FLTRXST Road Glide ST | - | - |
| 2023 | Harley-Davidson | FXLRS Low Rider S 117 | - | - |
| 2023 | Harley-Davidson | FLTRKSE CVO Road Glide Limited | - | - |
| 2020-2024 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2020 | Harley-Davidson | FXDRS FXDR 114 | - | - |
| 2018-2024 | Harley-Davidson | FLFBS Fat Boy 114 | - | - |
| 2018-2023 | Harley-Davidson | FXFBS Fat Bob 114 | - | - |
| 2018-2020 | Harley-Davidson | FLSL Softail Slim 107 | - | - |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | - | - |
| 2018-2020 | Harley-Davidson | FLSB Sport Glide 107 | - | - |
| 2018-2019 , 2021-2024 | Harley-Davidson | FLHCS Heritage Classic 114 | - | - |
| 2018-2019 | Harley-Davidson | FLHC Heritage Classic 107 | - | - |
| 2018-2019 | Harley-Davidson | FLDE Deluxe 107 | - | - |
| 2018-2019 | Harley-Davidson | FXBR Breakout 107 | - | - |
| 2018-2019 | Harley-Davidson | FLFB Fat Boy 107 | - | - |
| 2018-2019 | Harley-Davidson | FXFB Fat Bob 107 | - | - |
| 2017-2025 | Harley-Davidson | FLHRXS Road King Special | - | - |
| 2017-2025 | Harley-Davidson | FLRT Freewheeler | - | - |
| 2017-2025 | Harley-Davidson | FLTRX Road Glide | - | - |
| 2017-2025 | Harley-Davidson | FLHTCUTG Tri Glide Ultra | - | - |
| 2017-2024 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | - | - |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | - | - |
| 2016-2017 | Harley-Davidson | FXDLS Low Rider S | - | - |
| 2013-2015 | Harley-Davidson | FXSB Breakout | - | - |
| 2013-2014 | Harley-Davidson | FXSBSE CVO Breakout | - | - |
| 2012-2016 | Harley-Davidson | FLD Switchback | - | - |
| 2012-2015 | Harley-Davidson | FLS Softail Slim | - | - |
| 2011-2013 | Harley-Davidson | FXS Blackline | - | - |
| 2010-2015 | Harley-Davidson | FLSTFB Fat Boy Lo | - | - |
| 2009 | Harley-Davidson | FXSTSSE3 CVO Softail Springer | - | - |
| 2008-2017 | Harley-Davidson | FXDF Fat Bob | - | - |
| 2008-2011 | Harley-Davidson | FLSTSB Cross Bones | - | - |
| 2008-2011 | Harley-Davidson | FXCWC Rocker C | - | - |
| 2008-2009 | Harley-Davidson | FXCW Rocker | - | - |
| 2008 | Harley-Davidson | FXDSE2 Screamin Eagle Dyna | - | - |
| 2008 | Harley-Davidson | FXSTSSE2 Screamin Eagle Softail Springer | - | - |
| 2007-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 2007-2014 | Harley-Davidson | FXDC Super Glide Custom | - | - |
| 2007-2010 | Harley-Davidson | FXSTC Softail Custom | - | - |
| 2007-2009 , 2014-2017 | Harley-Davidson | FXDL Dyna Low Rider | - | - |
| 2007-2008 , 2010-2017 | Harley-Davidson | FXDWG Dyna Wide Glide | - | - |
| 2007 | Harley-Davidson | FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide | - | - |
| 2007 | Harley-Davidson | FLHTC Electra Glide Classic | - | - |
| 2007 | Harley-Davidson | FLHRC Road King Classic | - | - |
| 2007 | Harley-Davidson | FLHRSE3 Screamin Eagle Road King | - | - |
| 2007 | Harley-Davidson | FLTR Road Glide | - | - |
| 2007 | Harley-Davidson | FXDSE Screamin Eagle Dyna | - | - |
| 2007 | Harley-Davidson | FXSTSSE Screamin Eagle Softail Springer | - | - |
| 2006-2025 | Harley-Davidson | FLHX Street Glide | - | - |
| 2006-2022 | Harley-Davidson | FLHR Road King | - | - |
| 2006-2015 | Harley-Davidson | FLSTF Fat Boy | - | - |
| 2006-2015 | Harley-Davidson | FLSTC Heritage Softail Classic | - | - |
| 2006-2015 | Harley-Davidson | FLSTN Softail Deluxe | - | - |
| 2006-2009 , 2019-2021 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 2006-2009 | Harley-Davidson | FXSTB Night Train | - | - |
| 2006-2007 | Harley-Davidson | FXSTD Softail Deuce | - | - |
| 2006-2007 | Harley-Davidson | FLHRS Road King Custom | - | - |
| 2006-2007 | Harley-Davidson | FLSTSC Softail Springer Classic | - | - |
| 2006-2007 | Harley-Davidson | FXST Softail Standard | - | - |
| 2006 | Harley-Davidson | FLSTCI Heritage Softail Classic | - | - |
| 2006 | Harley-Davidson | FLSTSCI Softail Springer Classic | - | - |
| 2006 | Harley-Davidson | FXDI35 Dyna 35th Anniversary Super Glide | - | - |
| 2006 | Harley-Davidson | FXDWGI Dyna Wide Glide | - | - |
| 2006 | Harley-Davidson | FXSTDI Softail Deuce | - | - |
| 2006 | Harley-Davidson | FXSTI Softail Standard | - | - |
| 2006 | Harley-Davidson | FLHRCI Road King Classic | - | - |
| 2006 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | - | - |
| 2006 | Harley-Davidson | FLHTCUSE Screamin Eagle Ultra Classic Electra Glide | - | - |
| 2006 | Harley-Davidson | FLHTI Electra Glide Standard | - | - |
| 2006 | Harley-Davidson | FLSTI Heritage Softail | - | - |
| 2006 | Harley-Davidson | FLTRI Road Glide | - | - |
| 2006 | Harley-Davidson | FXDI Dyna Super Glide | - | - |
| 2006 | Harley-Davidson | FXSTSI Springer Softail | - | - |
| 2006 | Harley-Davidson | FLHRI Road King | - | - |
| 2006 | Harley-Davidson | FLHRSI Road King Custom | - | - |
| 2006 | Harley-Davidson | FLHTCI Electra Glide Classic | - | - |
| 2006 | Harley-Davidson | FLHXI Street Glide | - | - |
| 2006 | Harley-Davidson | FLSTFI Fat Boy | - | - |
| 2006 | Harley-Davidson | FLSTFSE2 Screamin Eagle Fat Boy | - | - |
| 2006 | Harley-Davidson | FLSTNI Softail Deluxe | - | - |
| 2006 | Harley-Davidson | FXDLI Dyna Low Rider | - | - |
| 2006 | Harley-Davidson | FXSTBI Night Train | - | - |
| 2006 | Harley-Davidson | FXSTS Springer Softail | - | - |
| 2005-2006 | Harley-Davidson | FXDCI Super Glide Custom | - | - |
Additional Information
| Ev-6 | 4-134 |