The Pertronix 1243A Ignitor kit converts the Motorcraft 4-cylinder distributor on the 1974 Ford Mustang II and Pinto 2.3L to electronic ignition. It installs inside the stock distributor, runs on a 12 volt negative ground system, and delivers a stronger, more consistent spark than points for easier starting. Fitment covers the applications listed below.
- Type: Ignitor points-to-electronic ignition conversion
- Trigger: Magnetic (Hall effect)
- Voltage: 12 volt
- Ground: negative ground
- Cylinders: 4
- Recommended coil: 3.0 ohm
- Fits: Original Motorcraft 4-cylinder distributors
- Sold as: Complete conversion kit
- Part number: 1243A
Vehicle Applications
- 1974 Ford Mustang II (2.3L L4)
- 1974 Ford Pinto (2.3L L4)
FAQ
Which vehicles does the 1243A fit?
It fits the 1974 Ford Mustang II and 1974 Ford Pinto with the 2.3L four-cylinder engine and Motorcraft distributor.
What does the 1243A replace?
It replaces the points and condenser with a sealed electronic module inside the distributor.
What coil is recommended for the 1243A?
A 3.0 ohm coil on a 12 volt negative ground system is recommended.

