Osculati 47.558.11 – NGK BPR6HS Spark Plug
The Osculati 47.558.11 includes the NGK BPR6HS, a premium resistor spark plug suitable for a wide range of outboard engines. Built with a copper core for optimal heat dissipation and a 5 kΩ resistor for RFI suppression, it protects onboard electronics like GPS, depth sounders, and VHF radios. Its medium-hot heat range supports smooth cold starts and consistent performance in both 2-stroke and 4-stroke marine engines. Equivalent to Champion RL87YC.
Main Features:
- Model: NGK BPR6HS
- Thread Size: 14 mm
- Reach: 12.7 mm (1/2″)
- Hex Size: 20.8 mm (13/16″)
- Resistor: Yes – 5 kΩ internal
- Heat Range: 6 (medium-hot)
- Electrode: Standard tip, copper core
- Champion Equivalent: RL87YC
Compatible Engine Brands:
- Mariner
- Yamaha
- Mercury
- Suzuki
- Tohatsu
- Selva
- Honda (both 2-stroke and 4-stroke models)
Benefits:
- Built-in RFI suppression for electronics-safe operation
- Medium-hot heat range resists fouling in marine conditions
- Copper core provides consistent spark and combustion stability
- Durable design for saltwater and high-humidity applications
Technical Specifications Table:
| Parameter | Value |
|---|---|
| Item Code | 47.558.11 |
| Model | NGK BPR6HS |
| Thread Size | 14 mm |
| Reach | 12.7 mm (1/2″) |
| Hex Size | 20.8 mm (13/16″) |
| Resistor | Yes (5 kΩ) |
| Heat Range | 6 |
| Core Type | Copper |
| Champion Equivalent | RL87YC |
| Application | 2-stroke and 4-stroke marine outboards |
The Osculati 47.558.11 – NGK BPR6HS spark plug is a dependable solution for outboards that require RFI protection and a medium heat range. It’s engineered to deliver smooth ignition, long-term durability, and compatibility with marine electrical systems, making it a preferred choice among marine professionals.
