Osculati 47.557.51 – Champion QL77CC Spark Plug
The Osculati 47.557.51 includes the Champion QL77CC spark plug, designed for use in 2-stroke marine outboard engines. This model features a built-in resistor to suppress radio frequency interference (RFI), ensuring clean operation with sensitive onboard electronics such as GPS, sonar, and radios. It offers a clean, powerful spark and marine-grade corrosion resistance for reliable performance in harsh saltwater conditions.
Main Features:
- Model: Champion QL77CC
- Thread Size: 14 mm
- Reach: 9.5 mm (3/8″)
- Hex Size: 21 mm (13/16″)
- Resistor: Yes – integrated RFI suppression
- Electrode Type: Standard tip
- Core Type: Copper
- Application: 2-stroke marine outboard engines
- Marine Grade: Yes – anti-fouling and corrosion-resistant
Benefits:
- Protects marine electronics from spark interference
- Ensures strong ignition and clean combustion at all RPMs
- Built to resist fouling, corrosion, and moisture in marine use
- OEM-equivalent compatibility with major outboard brands
Technical Specifications Table:
| Parameter | Value |
|---|---|
| Item Code | 47.557.51 |
| Model | Champion QL77CC |
| Thread Size | 14 mm |
| Reach | 9.5 mm (3/8″) |
| Hex Size | 21 mm (13/16″) |
| Resistor | Yes |
| Core Type | Copper |
| Application | 2-stroke outboard marine engines |
The Osculati 47.557.51 – Champion QL77CC spark plug offers superior ignition stability and essential RFI protection for outboard engines operating in marine environments. It’s a top choice for technicians and boaters who require compatibility with electronic systems and long-term durability in saltwater conditions.
