Ignition
Harley Bike Ignition Systems at JJ Motorsports
Upgrade your Harley’s ignition with premium sensors, stand-alone systems, and plug-in modules from JJ Motorsports, delivering precise timing, hotter spark, and full tuning capability on Twin Cam, Evo, Sportster, and M8 models. These high-performance ignition solutions maximize power and reliability for street or race applications.
Shop Standard Motor Products, ThunderMax, and Daytona Twin Tec ignition systems for proven performance. Explore related categories such as Harley lights and electrical for coils and wires, or Harley for cams and exhaust to complete your ignition and tuning setup.
Top Harley Ignition Systems
- Standard Motor Products Ignition Sensor Assembly Harley-Davidson MC-SPA3 – OEM-style crank position sensor; reliable timing signal for Twin Cam and Evo engines.
- ThunderMax Stand-Alone Ignition System Twin Cam EA5012 – Fully programmable stand-alone ignition; adjustable timing curves for Twin Cam performance builds.
- Daytona Twin Tec LLC Plug-In Ignition Module Harley-Davidson 1009 – Plug-and-play ignition module; advanced timing control for carbureted and EFI Twin Cam.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
S&S CYCLE Ignition Rotor - Harley Davidson 55-1247
S&S CYCLE
MSRP: $19.95Now: $17.96Was: $19.95A failing ignition rotor compromises spark timing and engine reliability—especially critical for Harley Davidson riders who demand consistent performance. This S&S Cycle OEM-quality replacement restores precise ignition function and eliminates the...21010332- SKU:
- 21010332
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- TAN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- ROTOR
- TYPE:
- IGNITION
MSRP: $19.95Now: $17.96Was: $19.95 -
DAYTONA TWIN TEC LLC Internal Ignition Kit - Harley Davidson 3005-EX
DAYTONA TWIN TEC LLC
$535.95Precision ignition timing is the foundation of reliable engine performance, and the DAYTONA TWIN TEC LLC Internal Ignition Kit gives you complete control over your Harley's firing characteristics—from stock cruising to extreme forced-induction builds...21010212- SKU:
- 21010212
- Availability:
- Ships Same Business Day
- Weight:
- 3.57 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- CALIFORNIA A.R.B E.O. LISTED
- PRODUCT NAME:
- IGNITION KIT
- TYPE:
- IGNITION
- RIDING STYLE:
- STREET
- FEATURES:
- PROGRAMMABLE
- UNITS:
- EACH
$535.95Qty in Cart: 0Quantity:Price:$535.95Subtotal: -
THUNDERMAX Stand-Alone Ignition System - Twin Cam EA5012
THUNDERMAX
$365.95Building a custom Twin Cam engine from the ground up? The THUNDERMAX Stand-Alone Ignition System eliminates the complexity of sourcing and wiring multiple ignition components by consolidating everything into a single, programmable module. With full spark...21010070- SKU:
- 21010070
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- COLOR/FINISH:
- BLACK
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- IGNITION KIT
- UNITS:
- KIT
- COLOR/FINISH:
- GRAY
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- FEATURES:
- PROGRAMMABLE
- TYPE:
- TWIN CAM
$365.95 -
DAYTONA TWIN TEC LLC Plug-In Ignition Module - Harley Davidson 1008-T
DAYTONA TWIN TEC LLC
$464.95The DAYTONA TWIN TEC LLC ignition module gives you precision timing control that carbureted Harley-Davidson engines demand. With dual advance curve families and multi-spark capability, you can dial in the exact ignition characteristics your engine...21010219- SKU:
- 21010219
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- COLOR/FINISH:
- BLACK
- STYLE:
- STANDARD
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
- UNITS:
- EACH
$464.95Qty in Cart: 0Quantity:Price:$464.95Subtotal: -
COMPU-FIRE Dual-Fire Ignition Module - '70-'99 Big Twin 20500
COMPU-FIRE
$283.58A reliable ignition system is the foundation of consistent engine performance, and the COMPU-FIRE Dual-Fire Ignition Module delivers the precision timing and dependability that serious Big Twin builders demand. This Hall-Cell triggered module eliminates...21010373- SKU:
- 21010373
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- IGNITION FIRE METHOD:
- DUAL
- MODEL:
- ELITE 1
- TYPE:
- IGNITION
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- IGNITION MODULE
- UNITS:
- KIT
$283.58Qty in Cart: 0Quantity:Price:$283.58Subtotal: -
COMPU-FIRE Single-Fire Ignition System - Harley Davidson 22003
COMPU-FIRE
$552.59If you're running a carbureted Harley-Davidson and tired of the limitations of a dual-fire ignition system, the COMPU-FIRE Single-Fire Ignition System gives you the precision spark timing and tuning control that serious riders demand. This bolt-on...21010238- SKU:
- 21010238
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ELECTRONIC
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GRAY
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- IGNITION MODULE
- UNITS:
- KIT
$552.59Qty in Cart: 0Quantity:Price:$552.59Subtotal: -
COMPU-FIRE Single-Fire Ignition System - Harley Davidson 22001
COMPU-FIRE
$552.59If you're running a carbureted Harley with an aging stock ignition system, the COMPU-FIRE Single-Fire Ignition System delivers the spark consistency and tuning control that modern performance demands. This conversion kit replaces unreliable points or...21010239- SKU:
- 21010239
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- TYPE:
- KICKSTART
- COLOR/FINISH:
- GRAY
- RIDING STYLE:
- STREET
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- IGNITION MODULE
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
$552.59Qty in Cart: 0Quantity:Price:$552.59Subtotal: -
DAYTONA TWIN TEC LLC Internal Ignition System - Harley Davidson 1005-T
DAYTONA TWIN TEC LLC
$464.95Feature two advance curve families that are adjustable to accommodate stock and modified engines, Selectable multi-spark mode for quick starting and smooth cruising, Four rotary switches for timing adjustments, single/dual ignition mode and rpm limit...21010209- SKU:
- 21010209
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- FEATURES:
- PROGRAMMABLE
- UNITS:
- EACH
- COLOR/FINISH:
- GRAY
- RIDING STYLE:
- STREET
- ELECTRICAL RESISTANCE:
- 3.0 OHMS
- MODEL:
- STANDARD
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
- TYPE:
- REV LIMITER
- COLOR/FINISH:
- BLACK
$464.95Qty in Cart: 0Quantity:Price:$464.95Subtotal: -
COMPU-FIRE Elite 1 Ignition Module - Harley Davidson 20600
COMPU-FIRE
$430.05The COMPU-FIRE Elite 1 Ignition Module gives you precise control over ignition timing and engine performance—critical for maximizing horsepower and reliability on Harley Davidson carbureted models. With eight selectable advance curves and adjustable rpm...DS242319- SKU:
- DS242319
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- MODEL:
- ELITE 1
- UNITS:
- EACH
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
$430.05Qty in Cart: 0Quantity:Price:$430.05Subtotal: -
COMPU-FIRE Dual-Fire Ignition Module - Harley Davidson 20100
COMPU-FIRE
$184.97The COMPU-FIRE Dual-Fire Ignition Module eliminates the reliability issues and performance limitations of external ignition systems by housing all electronics directly in your ignition housing. This integrated design delivers precise timing control and...DS242324- SKU:
- DS242324
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- IGNITION MODULE
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- IGNITION FIRE METHOD:
- DUAL
- TYPE:
- IGNITION
$184.97Qty in Cart: 0Quantity:Price:$184.97Subtotal: -
COMPU-FIRE Single-Fire Ignition Module- Harley Davidson 20200
COMPU-FIRE
$221.71If you're running a Harley with a points-based ignition system, the COMPU-FIRE Single-Fire Ignition Module (MPN 20200) replaces unreliable mechanical components with solid-state reliability while maintaining the simplicity and tuneability of your setup...DS242325- SKU:
- DS242325
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$221.71Qty in Cart: 0Quantity:Price:$221.71Subtotal: -
COMPU-FIRE Elite 1 Ignition Module - Harley Davidson 21835
COMPU-FIRE
$430.05The COMPU-FIRE Elite 1 Ignition Module gives you complete control over your Harley's ignition timing and engine performance. With eight selectable advance curves and a fully adjustable rpm limiter, you can dial in the exact tune your engine...DS242333- SKU:
- DS242333
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
- COLOR/FINISH:
- BLACK
- MODEL:
- ELITE 1
- RIDING STYLE:
- STREET
- TYPE:
- HIGH COMPRESSION
- UNITS:
- EACH
$430.05Qty in Cart: 0Quantity:Price:$430.05Subtotal: -
COMPU-FIRE Elite 1 Ignition Module - Harley Davidson 21835-KS
COMPU-FIRE
$417.78Precision ignition timing is the foundation of reliable engine performance, and the COMPU-FIRE Elite 1 delivers the control serious Harley riders demand. This module eliminates guesswork with eight selectable advance curves and a fully adjustable rpm...DS242371- SKU:
- DS242371
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- IGNITION MODULE
- TYPE:
- IGNITION
- TYPE:
- KICKSTART
- COLOR/FINISH:
- BLACK
- MODEL:
- ELITE 1
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$417.78Qty in Cart: 0Quantity:Price:$417.78Subtotal: -
DRAG SPECIALTIES Ignition Distributor - Harley Davidson 72053
DRAG SPECIALTIES
$314.03A reliable ignition distributor is critical to consistent engine performance, especially in high-demand riding conditions where timing precision directly impacts throttle response and reliability. The DRAG Specialties Harley Davidson distributor delivers...21300055- SKU:
- 21300055
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- PRODUCT NAME:
- DISTRIBUTOR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- IGNITION FIRE METHOD:
- SINGLE
- IGNITION TYPE:
- MECHANICAL (POINTS)
- UNITS:
- KIT
$314.03Qty in Cart: 0Quantity:Price:$314.03Subtotal: -
COMPU-FIRE Single-Fire Ignition Module - '70-'99 Big Twin 20550
COMPU-FIRE
$283.58A reliable ignition system is the foundation of consistent engine performance, especially in high-demand riding conditions where voltage fluctuations and temperature extremes can compromise spark quality. The COMPU-FIRE Single-Fire Ignition Module...21010374- SKU:
- 21010374
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- IGNITION FIRE METHOD:
- SINGLE
- PRODUCT NAME:
- IGNITION MODULE
- UNITS:
- KIT
- MODEL:
- ELITE 1
- TYPE:
- IGNITION
$283.58Qty in Cart: 0Quantity:Price:$283.58Subtotal: -
DRAG SPECIALTIES Ignition Module Cover - Harley Davidson - Chrome 13645
DRAG SPECIALTIES
$23.64A clean, polished appearance starts with attention to detail—and the ignition module cover is one of the most visible components on your Harley's primary cover. This chrome-finished cover protects your ignition module from moisture and road debris while...DS373680- SKU:
- DS373680
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- COVER
- TYPE:
- IGNITION MODULE
- UNITS:
- EACH
$23.64
