Sierra 18-29720 Promaster Marine Coil
Sierra high quality parts are designed to meet OEM specifications.
- Delivers higher performance through faster rise time and longer spark duration
- A rugged, glass-filled polyester case and oil-filled construction ensure long life w/ no energy loss
- Threaded brass contact terminals/spark plug type secondary post for better coil wire retention
- Effective to 8000 RPMs
- External Resistor required
For use w/ Mallory UNILITE Ignition, Magnetic Breakerless Ignition &/or Electronic Advance Computer