This Electronic Points Box adds a built-in Rev Limiter to the same field-proven Pro-Mag 44 control circuitry. It takes the trigger signal from the generator's magnetic pickup and releases power to the coil instantly at full strength, keeping electricity flowing across the plug for a full 26 degrees of crankshaft rotation for complete combustion. A cast aluminum housing serves as both mounting foundation and heat sink, with Humi-Seal coated circuits for vibration protection.
Specifications:
- Color: Black
- Sub Category: Control Modules
- Housing: Cast aluminum
- Feature: Built-in Rev Limiter
- Spark Duration: 26° of crankshaft rotation
- Application: Pro Mag 44 (not for use with the Pro Mag 12/20)
- Part Number: 81473
RPM Modules must be purchased separately.
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What makes the MSD 81473 different from a standard Pro Mag 44 points box?
The 81473 adds a built-in Rev Limiter to the same Electronic Points Box circuitry used to control the Pro-Mag 44's spark.
Does the 81473 include RPM modules?
No, RPM Modules must be purchased separately.
Is this points box legal for street use?
No. It's Emission Code 4, Racing Use Only — legal for sale and use only on unregistered competition vehicles, not on emissions-controlled street vehicles.
