The Pertronix Ignitor Electronic Ignition Conversion Kit (MC-181) converts breaker points to electronic ignition by installing the original Ignitor module into MerCruiser (Mercury Marine) 8-cylinder distributors 64025 and 64026. The original Ignitor is a solid-state, self-contained module that replaces breaker points for a maintenance-free ignition. The module mounts inside the original distributor, so the factory appearance is retained and no external ignition box is required.
This is a distributor-based kit. Fitment is determined by the distributor family listed below rather than by a single vehicle range, so confirm the kit against the distributor on the engine before ordering.
- Type: Points-to-electronic conversion kit (Ignitor)
- Trigger: Magnetic (Hall effect)
- Voltage: 12V
- Ground: Negative
- Cylinders: 8
- Coil: use a coil rated 1.5 ohms or higher
- Adaptive dwell: No (fixed dwell)
- Fits: MerCruiser (Mercury Marine) 8-cylinder distributors 64025 and 64026
- Sold as: complete conversion kit
- Part number: MC-181
FAQ
What does the Pertronix MC-181 kit fit?
It fits MerCruiser (Mercury Marine) 8-cylinder distributors 64025 and 64026. Fitment is based on the distributor, so match the kit to the distributor on the engine rather than to a single model year.
What ignition coil does it need?
Use a coil rated 1.5 ohms or higher on a 12V negative-ground system. Lower-resistance coils are not recommended with the original Ignitor.
Does it replace the points and condenser?
Yes. The module replaces the breaker points and condenser inside the distributor for a maintenance-free electronic ignition.
Is an external ignition box required?
No. The module fits inside the original distributor and needs no external box, so the engine keeps its factory look.
