NGK Spark Plugs NGK: Standard Nickel Plug 3623

NGK BPR6EFS Spark Plug

NGK BPR6EFS Spark Plugs are standard spark plugs that feature a copper core to promote heat dissipation and more efficient spark plug operation. Each plug has a threaded terminal for ease of installation and removal. NGK BPR6EFS Spark Plugs are constructed to promote longer life and optimal performance. They are designed to fit most popular engines including Indmar, Marine Power, MerCruiser, OMC, Redline, and Volvo Penta as well as inboards engine and Boston Whaler jet boat engines. For your convenience, NGK BPR6EFS Spark Plugs are Sold individually

Be sure to check your engine and maintenance manual for the correct spark plug, and only use those brands that have been recommended by your engine's original equipment manufacturer. Using the wrong plug can reduce optimum performance, lower fuel economy and/or cause damage to your engine.

Replaces:

Mercury Marine

33-816336Q

Specifications:

Shell

Thread Size: 14mm

Thread Pitch: 1.25mm

Seat Type: Tapered

Resistor: Yes

Resistor Value: 5K Ohm

Reach: 18mm (.709")

Hex Size: 5/8" (16mm)

Terminal Type: Removable Nut

Overall Height: ISO

Gap: .031" (0.8mm)

Center Electrode

Material: Nickel

Type: Standard

Size: 2.5mm

Projection: Projected

Ground Electrode

Material: Nickel

Type: Standard

Quantity: 1

Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

Brand: NGK

Heat Range: 6

Longevity: 30k Miles

Frequently Asked Questions

• What is the NGK BPR6EFS Spark Plug used for? The NGK BPR6EFS Spark Plug is a standard spark plug designed to promote heat dissipation and efficient spark plug operation with its copper core. It is listed for popular engines including Indmar, Marine Power, MerCruiser, OMC, Redline, Volvo Penta, inboard engines, and Boston Whaler jet boat engines.
• What are the key specifications of the NGK BPR6EFS Spark Plug? The NGK BPR6EFS has a 14mm thread size, 1.25mm thread pitch, tapered seat, 18mm reach, and 5/8-inch (16mm) hex size. It has a 0.031-inch (0.8mm) gap, 5K Ohm resistor, nickel center and ground electrodes, and a heat range of 6.
• What is the spark plug gap for the NGK BPR6EFS? The specified gap for the NGK BPR6EFS Spark Plug is 0.031 inches (0.8mm). The plug uses a projected, standard-type 2.5mm nickel center electrode and a standard nickel ground electrode.
• Which marine engines can use the NGK BPR6EFS Spark Plug? The product description lists the NGK BPR6EFS for Indmar, Marine Power, MerCruiser, OMC, Redline, and Volvo Penta engines, as well as inboard engines and Boston Whaler jet boat engines. Verify your specific engine and maintenance manual to confirm the correct spark plug before use.
• Is the NGK BPR6EFS Spark Plug sold individually? Yes. The NGK BPR6EFS Spark Plug is sold individually. The product description also lists a removable-nut terminal, a resistor value of 5K Ohm, and a stated longevity of 30k miles.
• What spark plug does the NGK BPR6EFS replace? The NGK BPR6EFS is listed as a replacement for Mercury Marine part number 33-816336Q. Always compare the existing part number and verify the recommended spark plug in your engine or maintenance manual before installation.