Genuine NGK BPR6FS x 10 S/P for inboard marine engines.
 
NGK Nickel Spark Plug - BPR6FS
SKU: SP09133
Part Number: BPR6FS
The NGK BPR6FS Nickel Spark Plug delivers reliable ignition performance and durability, designed for automotive and small engine applications with optimized heat dissipation and combustion efficiency.
Product Details
The NGK BPR6FS Nickel Spark Plug is engineered for enhanced ignition performance and longevity, suitable for various automotive and small engine applications. Equipped with a nickel alloy center electrode, it promotes efficient combustion and consistent spark, minimizing the risk of misfires. Its V-groove design optimizes the spark exposure to the air/fuel mixture, improving combustion and overall engine performance. Featuring a 14mm thread, 19mm reach, and projected insulator design, the BPR6FS offers superior heat dissipation and resistance to fouling. This spark plug is ideal for engines requiring reliable starting, smooth operation, and improved fuel efficiency, ensuring optimal performance over time.
Part Number: BPR6FS
Specifications
Shell
 
Thread Diameter
14mm
Thread Pitch
1.25mm
Seat Type
Tapered
Reach
11.6mm (.460-Inch)
Hex Size
5/8-Inch (16mm)
Terminal Type
Solid
Overall Height
ISO
Gap
.031-Inch (0.8mm)
 
NGK BPR6FS spark plugs are designed for a wide range of automotive and small engine applications, including marine engines, and are known for their reliable ignition performance and durability. They are often used in vehicles requiring smooth operation, fuel efficiency, and dependable starts, and are also a popular choice for inboard marine engines.
Here's a more detailed look:
Automotive:
The BPR6FS is a standard nickel spark plug suitable for various vehicles, providing consistent and reliable ignition for everyday driving conditions.
Marine:
This spark plug is specifically designed for inboard marine engines and ignition systems, offering efficient combustion and consistent spark in a marine environment.
Small Engines:
The BPR6FS is also suitable for use in smaller engines, such as those found in some boats, offering reliable starting and smooth operation.
Key Features:
Nickel Alloy Center Electrode: Promotes efficient combustion and consistent spark. 
V-Groove Design: Optimizes spark exposure to the air/fuel mixture for improved combustion. 
Projected Insulator: Provides superior heat dissipation and resistance to fouling. 
14mm Thread, 19mm Reach: Standard dimensions for many applications. 
Resistor: The "R" in the part number indicates the presence of a resistor, which helps reduce interference with electronic components. 
Heat Range:
The "6" in the part number indicates the heat range, with a lower number (like 5) being a hotter plug and a higher number (like 6) being a cooler plug. A cooler plug is better for higher speed or heavy load applications, while a hotter plug is better for lower speed or light load applications. The BPR6FS is considered a cooler plug and is often a good choice for many standard applications.
Equivalent Plugs:
The BPR6FS is equivalent to Champion's RN4C, according to Casa Lambretta North America