Osculati 47.557.06 – Champion L78C Spark Plug
The Osculati 47.557.06 spark plug is the trusted Champion L78C model, engineered for marine 2-stroke outboard engines. It offers clean and consistent ignition performance under typical marine conditions. With no internal resistor, this plug is optimized for ignition systems that require direct spark delivery without signal attenuation.
Main Features:
- Model: Champion L78C
- Thread Size: 14 mm
- Reach: 9.5 mm (3/8″)
- Hex Size: 21 mm (13/16″)
- Resistor: No
- Type: Standard electrode, non-resistor
- Marine Use: Yes – saltwater-resistant construction
Benefits:
- Delivers strong spark energy to older or non-resistor systems
- Resists fouling and ensures stable combustion at all RPMs
- Reliable performance in saltwater marine environments
- Easy cold starts and consistent operation under load
Technical Specifications Table:
| Parameter | Value |
|---|---|
| Item Code | 47.557.06 |
| Model | Champion L78C |
| Thread Size | 14 mm |
| Reach | 9.5 mm (3/8″) |
| Hex Size | 21 mm (13/16″) |
| Resistor | No |
| Application | 2-stroke outboard engines |
Designed for simple, rugged marine engines, the Osculati 47.557.06 – Champion L78C spark plug is ideal for recreational boats, tenders, and older outboards where resistor-type plugs are not required. Its dependable spark delivery and corrosion-resistant build make it a staple in any marine toolbox.
