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MSD Ignition Digital 6A Ignition Control Box

MSD Ignition 6201


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MSD Ignition Digital 6A Ignition Control Box $226.95
Digital 6A Ignition Control
  • Per Spark Energy: 135-145 mJ
  • CARB E.O Number D-40-43
  • Red

  • MSD Ignition 6201 Details

    6-Series Digital Ignition Controls

    MSD started with a clean slate and drew up plans for an all-new housing. We kept the same footprint as the traditional 6AL but lowered the profile for a sleek look. The wiring is all routed out one end of the unit through a sealed and locking connector. This eases installation and keeps your wiring looking neat and clean.

    Inside the Digital 6A you'll find a microprocessor that monitors and controls every firing. The circuits are updated with efficient components that help the ignition produce more power while drawing less current! In fact, the new Digital 6A deliver over 530 volts to the coil with up to 135mJ of spark energy for every firing! Increased output combined with MSD's proven multiple spark series is a win-win situation!

    The new Digital 6A is supplied with the wiring harness and the components you'll need for installation. Compatible on 4, 6, or 8-cylinder engines with 12-volt negative ground electrical systems. Accepts trigger inputs from breaker points, amplifiers, and magnetic pickups.

  • Higher output with 530 primary volts and 135mJ of spark energy
  • Efficient components use less current to produce more power
  • Same bolt pattern as the original 6A with a lower profile housing
  • Built-in LED for system checks
  • All wires exit the same side through a locked, sealed connector

    Operating Specifications
  • Spark Energy: 135-145 mJ per spark
  • Primary Voltage: 520-540 volts
  • Secondary Voltage: 45,000 volts
  • Spark Series Duration: 20° Crankshaft Rotation
  • RPM Range: 15,000 RPM with 14.4 volts
  • Voltage Required: 12-15 volts, 7 volt Start
  • Current Draw: 0.7 amp per 1,000 RPM
  • Size: 8" L x 4" W x 1.825" H
  • Weight: 1.7 lbs
  • CARB E.O Number D-40-43

  • Specifications:

    Height (in.)
    Width (in.)
    Overall Length (in.)
    CARB EO Number
    D-40-43 (pdf)
    CD Voltage Output to Coil
    520-540 V
    Coil Included
    Current Draw
    0.7 amps per 1,000 rpm
    Data Acquisition
    Ignition Box Color
    Ignition Box Output
    Capacitive discharge
    Maximum Operating Voltage
    15 V
    Minimum Operating Voltage
    12 V
    Sold individually
    Rev Limiter
    Spark Output (millijoules)
    135-145 Millijoules
    Timing Retard
    Manufacturer's Part Number:

    MSD 6-Series Ignitions set the standard for quick starts, increased power, smooth idle, crisp throttle response and reduced spark plug fouling. MSD ignitions are available in a several styles and install easily in a variety of applications.

    Digital 6A: Base model with multiple sparking, capacitive discharge (CD) ignition control.
  • Hotter Spark for Improved Driveability.
  • Without Rev Limiter - Can Not Be Added.

    Digital 6AL: Digital 6AL or 6BTM Ignitions are made for spirited driving, grabbing gears or some form of racing.
  • Includes Adjustable Soft Touch Rev Control.
  • Can Add a 2-Step Module Selector for Launch rpm Limit.

    Digital 6AL-2: Ideal for the street and strip applications.
  • Includes Built-in 2-Step Rev Control.

    Digital 6 Plus: Ideal for 4, 6 and 8-cylinder engine applications.
  • Includes Built-in Drag Race Features, 2-Step Rev Control, Single Stage Retard and Start Retard.

    Programmable 6AL-2: Provides PC programming for the street.

    Extreme Duty 6ALN: For severe duty applications such as off-road truck racing or saturday night dirt tracks.
  • Sealed locking connectors and epoxy for vibration resistance create an ignition ready to take on the rigors of hard-core racing.

    Hardcore 6CT: The most advanced ignition for circle track racing.
  • This ignition contains MSD’s smoothest rev limiter available and is ready to take on the rigors of hard-core racing.

    Marine: All of the power and multiple. sparks of an MSD, plus a rev limiter for Marine applications.
  • Includes sealed Weathertight connectors.

    Professional Racing: Designed for professional long duration, high-rpm racing.
  • Features NASCAR mandated harnesses, a clear baseplate and vibration dampening silicone.
  • Uses a special Coil (121-8250) & produces higher spark energy and voltage.

    JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.

  • 6201 is rated 4.5 out of 5 by 4.
    Rated 5 out of 5 by from Great product I bought this MSD 6A to add to my MSD distributor, what a difference it made, better starts, smoother idle. Does everything it supposed to do. Very satisfied. I added it to my Blue Print 347 stroker I also bought from Jegs. Great product!!
    Date published: 2017-10-29
    Rated 5 out of 5 by from made big difference Have not driven many miles since installation along with MSD distributor and coil but made an immediate difference. For me worth the price. Nice looking addition to the engine compartment.
    Date published: 2016-08-05
    Rated 5 out of 5 by from Easy hook up I purchased this item a month ago, easy ordering, paid with PayPal, shipped and received quickly. Was so easy to hook up had the motor singing within less than an hour. Thanks jegs
    Date published: 2016-01-22
    Rated 3 out of 5 by from I have had problems This is the 3rd MSD that I have purchased for my 1981 Jeep CJ-7, and less than 10,000 miles. The first was an offroad model and when I contacted the MSD manufacturers in El Paso, Texas, they said it could not be repaired even though it barely had 1000 miles on it. The 2nd was a MSD 6AL that had 7 or 8,000 miles on it. It would just quit and then you could let the vehicle sit for a while and cool off and then it would start again and then run for a while and quit. I bought a new coil thinking this might be the problem, same thing. I just recently bought another MSD 6 because I use my jeep to plow a little snow in our yard and I also pull my boat sometimes. Luckily I have a K&D tools ignition bypass that has its own coil and I was always able to move my jeep if I got stranded . I am running a 401HP engine with a Turbo 400 Trans full length header, Edelbrock performer intake and cam. It runs great, just wish that I could depend on the MSD to not quit on me at the most inopportune time.It has a fiberglass body but I made sure that the MSD unit was grounded to the engine and rubber shock mounted. I ran MSD in my 1966 426 Hemi charger with no problems, but not much luck with my jeep. I cannot recommend this unit very highly. I did not contact MSD Manufactures on this latest failure, because they pretty much blew me off on the last one. Also I habe been running a MSD 6 on my 1990 supercharged Mustang and I did have one failure with it years ago and had to replace it with another. The 2nd one does not have many miles on it and is working fine.
    Date published: 2016-01-23
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    Is there a rev limiter that will work with a Digital 6A to save me having to buy a 6AL? Thanks

    Asked by: RufusB
    No, you will need to upgrade to use a rev limiter on your vehicle.
    Answered by: Rusty B
    Date published: 2018-02-27

    Is this part comparable with my 99 Chevy Tahoe 5.7L vortec v8

    Asked by: Miller17
    This will work as long as you are using a single coil ignition.
    Answered by: Rusty B
    Date published: 2017-10-23

    Is this part compatible with a 2001 Jeep Cherokee classic XJ MSD ignition mod

    Asked by: Nick g
    The 6201 is not compatible with this vehicle.
    Answered by: Jon Jegs Tech
    Date published: 2017-10-05
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    Items You Need
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