Pertronix Flame-Thrower II ignition coil 45,000V Black (45011) — 0.6Ω oil-filled high-output for Ignitor II/III

The PerTronix Flame-Thrower II 45,000-volt ignition coil (model 45011) is a high-output, oil-filled coil engineered to supply strong spark energy for compatible low-resistance electronic ignition systems.

This coil is built to support modern electronic ignitions that demand low primary resistance and higher spark voltage. Housed in a round, oil-filled canister and finished in black, the Flame-Thrower II delivers up to 45,000 volts and features a 0.6 ohm primary resistance. It's specifically engineered to work with PerTronix Ignitor II and Ignitor III modules and other high-current inductive systems; it is not suitable for classic mechanical breaker points or the original Ignitor I module.

How does this coil improve ignition performance?

The Flame-Thrower II increases the available spark energy compared with standard coils by combining low primary resistance and high secondary voltage. That stronger spark helps ensure more reliable combustion under heavier ignition loads and higher engine demand.

• Up to 45,000 volts secondary output for stronger spark potential
• 0.6 ohm primary resistance tuned for high-current electronic ignitions
• Oil-filled canister for stable heat management and consistent spark delivery

Will it fit my ignition system and how should it be installed?

This coil is designed for high-current inductive electronic modules such as PerTronix Ignitor II and III. It is not recommended for use with breaker-point distributors or Ignitor I modules. Proper mounting orientation is critical to avoid leaks and damage.

• Compatible with Ignitor II and Ignitor III and similar low-resistance electronic ignitions
• Not recommended for breaker points or Ignitor I-type modules
• Install vertically with the terminal facing up to prevent oil leakage

What are the construction and durability features?

The flame-thrower uses an oil-filled round canister design that helps dissipate heat and supports dependable street use. The robust build and finish protect internal components while optimizing spark consistency across a range of driving conditions.

• Oil-filled construction for improved heat handling and longevity
• Round canister shape for uniform spark characteristics
• Durable black finish resists environmental exposure

How should I troubleshoot common issues after installing this coil?

If ignition problems appear after installation, verify compatibility, wiring, and mounting orientation first. Check for proper grounding, secure terminal connections, and absence of oil leakage; incorrect mounting is a common source of failure in oil-filled coils.

• Confirm the coil is used with compatible electronic ignition modules
• Ensure vertical mounting with terminal upward to avoid oil seepage
• Inspect wiring, ground points, and connector security for reliable operation

Who is this for: The PerTronix Flame-Thrower II 45011 is aimed at automotive enthusiasts and professional technicians upgrading older vehicles to modern electronic ignition systems or replacing worn coils with a higher-output option. It's ideal for applications requiring stronger spark energy from low-resistance ignitions, provided the installer follows the vertical-mount requirement and confirms module compatibility.