Description
Johnson/Evinrude Ignition Mounting Screw 0328726 – Coil & Power Pack Hardware
The Johnson/Evinrude Ignition Mounting Screw is used on select OMC ignition systems to secure ignition components to the engine.
Depending on the specific engine and ignition configuration, this screw may be used for mounting the power pack, ignition coils, or both.
For SST-45 / Formula Light racing applications, factory parts information identifies 328726 as a mounting screw used with both the ignition coils and power pack.
This makes it an important piece of ignition-system hardware during restoration, service, and race-engine rebuilding.
What the Ignition Mounting Screw Does
The ignition system depends on properly secured electrical components.
The 328726 mounting screw helps keep ignition components firmly attached to their designated mounting points.
Depending on the engine application, this may include:
- Power pack
- Ignition coils
- Ignition mounting brackets
- Related ignition-system components
Proper mounting helps prevent movement and vibration that could affect wiring, connections, or component reliability.
SST-45 / Formula Light Application
For SST-45 engines, 328726 is used as mounting hardware for both the ignition coils and power pack.
This is important because many general Johnson/Evinrude parts references may describe 328726 only as a power-pack screw.
OMC used the same fastener in different ignition-system locations depending on the engine family.
For SST-45 applications, it can be used with:
- Ignition coils
- Power pack
Always use the SST-45 parts reference when confirming quantity and placement on a race engine.
Why Proper Ignition Hardware Matters
Ignition components are exposed to:
- Engine vibration
- Heat
- High RPM
- Moisture
- Repeated maintenance
- Race-day operating conditions
Loose, damaged, or corroded mounting hardware can allow ignition components to move or vibrate excessively.
This can contribute to:
- Loose electrical connections
- Wiring stress
- Intermittent ignition problems
- Damaged mounting tabs
- Component movement
- Unnecessary vibration
- Difficulty during future service
Replacing questionable mounting hardware is inexpensive compared with troubleshooting an intermittent ignition problem.
Common Reasons to Replace Screw 328726
Replacement should be considered when:
- The screw head is damaged
- Threads are stripped
- Corrosion is present
- The screw is bent
- Original hardware is missing
- The ignition system has been repeatedly serviced
- The screw no longer tightens properly
- The powerhead is being restored or rebuilt
- Coils or the power pack are being replaced
Damaged hardware should not be reused simply because it can still be threaded into place.
Key Features & Benefits
- Ignition-System Mounting Hardware – Used to secure ignition components to the engine
- SST-45 Coil & Power Pack Application – Used for both ignition coil and power-pack mounting on applicable SST-45 engines
- OEM Johnson/Evinrude Reference – Part number 328726 / 0328726
- Ideal for Engine Restoration – Replaces damaged, missing, corroded, or worn original hardware
- Useful During Ignition Service – Good replacement when coils or power packs are removed
- Supports Reliable Component Mounting – Helps keep ignition parts securely positioned
- Performance & Racing Application – Suitable for SST-45 / Formula Light race-engine maintenance
Why Online Listings May Show Different Descriptions
When searching for 328726, you may see it listed only as a Power Pack Screw.
That description is correct for many Johnson/Evinrude applications, but it does not represent every engine that uses this fastener.
OMC frequently used the same screw in multiple locations across different engine families.
On other engines, 328726 may be listed as:
- Power pack screw
- Coil mounting screw
- Ignition mounting screw
For SST-45 applications, the important point is that 328726 is used for both the ignition coils and power pack.
Inspect Related Components During Service
Whenever ignition mounting hardware is removed, inspect:
- Ignition coils
- Power pack
- Mounting brackets
- Ground wires
- Electrical connectors
- Coil wires
- Harness routing
- Mounting threads in the engine
A new screw will not correct a damaged mounting boss, stripped engine thread, broken coil bracket, or corroded electrical connection.
Performance & Racing Considerations
For SST-45 and Formula Light racing, ignition-system reliability is critical.
The engine operates under sustained vibration and high RPM, making secure component mounting especially important.
At Liquid Revolutions, we know that simple hardware can become an overlooked source of problems. A loose coil or power pack can put unnecessary stress on wires, connectors, and mounting points.
Replacing worn or damaged Ignition Mounting Screws during ignition-system service is a simple way to keep components securely mounted and reduce one more potential reliability issue.
Whether you’re rebuilding an SST-45 powerhead, replacing ignition coils, servicing the power pack, or restoring an older Johnson/Evinrude outboard, proper mounting hardware helps keep the ignition system secure and serviceable.


