COMPUFIRE SKU: 139-10006

Compufire Elite Ignition Module Single/Dual Fire - Harley Big Twin 1970-1999

$430.95
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About Compufire

Compufire parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Compufire item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.

Unleash the full potential of your carbureted Harley Big Twin with the Compufire Elite Ignition Module. This high-performance module delivers precise spark timing and allows for custom tuning to match your engine's setup.

Why riders pick this

  • Selectable advance curves for custom engine tuning
  • Adjustable RPM limiter for engine protection
  • Static timing LED for easy installation
  • Compact design fits under the timing cover
  • Reliable spark for carbureted V-twin performance

Designed for riders who demand more from their V-twin, the Compufire Elite Ignition Module is a direct upgrade for 1970-1999 Harley Big Twin models. It replaces the factory ignition system, providing a robust and reliable spark crucial for performance. Whether you're chasing more horsepower or a smoother idle, this module gives you the control to fine-tune your engine's characteristics.

Precision Tuning for Your V-Twin

  • Selectable advance curves to optimize timing for various engine builds
  • Adjustable RPM limiter to protect your engine at higher revs
  • Static timing LED for straightforward installation without a timing light
  • Compact design with all electronics fitting under the timing cover

Engineered for Performance and Simplicity

This Compufire Elite Ignition Module is engineered for easy installation, featuring a static timing LED that eliminates the need for a separate timing light. Its versatile single/dual fire mode and range of advance curves make it suitable for a variety of carbureted Big Twin setups. Pair it with a high-output coil and performance spark plug wires for a complete ignition system overhaul.

Specifications

  • Brand: Compufire
  • Manufacturer Part #: 21835
  • UPC: 694342547653
  • Dimensions: 5 in L × 2 in W × 8 in H
  • Weight: 1 lbs
  • Country of Origin: USA

Common questions

Will this ignition module work with my fuel-injected Harley?

No, this Compufire Elite Ignition Module is specifically designed for carbureted Harley-Davidson Big Twin models from 1970-1999. It is not compatible with EFI systems.

Do I need a special tool to set the timing during installation?

No, this module features a built-in static timing LED that simplifies the installation process, allowing you to set the timing without needing an external timing light.

Is this a single or dual fire ignition?

This Compufire Elite Ignition Module offers both single and dual fire modes, giving you the flexibility to choose the best option for your V-twin setup.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDCompufire
TYPEElectrical
SKU139-10006
WEIGHT1.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.8
5 RATINGS
5★ 4
4★ 1
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jun 10, 2021

Great the one it replaced lasted 10 years hopefully this one will do the same have been out already will be doing the same again this Saturday great service free baseball hat would’ve been a nice touch your stickers are all over the bike where harley would’ve been thanks again

— Anonymous
✓ VERIFIED
Apr 7, 2020

Great ignition system..4 star rating because the rotor washer was missing

— Anonymous
✓ VERIFIED
Sep 26, 2014

Works great so far

— Anonymous
✓ VERIFIED
Jun 11, 2013

Put this on my bike and it runs perfect again. Very easy to install.

— Anonymous
✓ VERIFIED
Mar 15, 2012

Easy installation and no problems getting it set up

— Anonymous