The MSD Digital 6M-3L is a UL listed marine ignition control that multi-sparks from idle to 3,000 RPM for a clean idle and quick throttle response, then runs clean capacitive discharge sparks through 12,000 RPM. Three rotary dials and an LED display simplify setting cylinder count, start retard, and rev limiter, replacing plug-in rev limiter chips and hard-to-read dial setups. The LED display can also be switched to a live tach mode or used to check battery voltage.
Specifications:
- Product Type: Ignition
- Color: Blue
- Grade Type: Marine
- Primary Voltage: 535-550V / Secondary Voltage: 45,000V
- Spark Energy: 135 mJ w/ Blaster Coil, 150 mJ w/ HVC Coil (PN 8250)
- Maximum RPM: 12,000 RPM (at 14.4V)
- Current Draw: 0.8 Amps per 1,000 RPM
- Voltage Required: 6-18V
- Features: Adjustable Start Retard (0°, 10°, or 20°)
- Weight & Size: 2.5 lbs., 7.89"L x 4.00"W x 1.87"H
- Part Number: 6564
Accepts magnetic pickup, amplifier, or points trigger inputs; works on 4, 6, or 8-cylinder engines and records the highest RPM reached over the last 20 minutes of run time.
FAQ
What makes the 6M-3L different from earlier MSD marine boxes?
It replaces plug-in rev limiter chips and hard-to-read dials with three rotary dials and an LED display for setting cylinder count, start retard, and rev limit, and it can also show live tach or battery voltage readings.
What rev limiter does the 6M-3L use?
It has MSD's smoothest rev limiter to date, built in and adjustable through the front-panel dials, protecting the engine without an external rev control module.
Is the 6M-3L UL certified for marine use?
Yes, it is a UL listed, fully sealed unit with a single wiring connector for a clean, straightforward marine installation.
What spark energy does the 6M-3L produce?
It delivers 135 mJ per spark with a Blaster Coil, or up to 150 mJ per spark when paired with MSD's HVC Coil, PN 8250.
