NGK Spark Plugs NGK: V-Power Plug 7558

NGK ZFR5F Spark Plug

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Actual OE or equivalent replacement spark plug.

Part Number: ZFR5F

Resistance: 5000 Ohm

Ground Electrode Core Material: Nickel

Center Electrode Core Material: Copper

Pre-Gap Size: 0.32"

Hex Size: 5/8"

Insulator Height: 50.50 mm

Seat Type: Flat

Interchangeable with:

Mercury

33-8M0204728

33-8M0057936

Fits most Mercury EFI 4-Stroke engines 65 HP - 150 HP

Frequently Asked Questions

• What is the NGK ZFR5F Spark Plug used for? The NGK ZFR5F Spark Plug is an NGK V-Power spark plug designed as an actual OE or equivalent replacement. It is specified to fit most Mercury EFI 4-Stroke engines from 65 HP through 150 HP and features a nickel ground electrode core and copper center electrode core.
• Which Mercury engines does the NGK ZFR5F Spark Plug fit? The NGK ZFR5F is listed for most Mercury EFI 4-Stroke engines rated from 65 HP to 150 HP. Because the description specifies "most" applications rather than every engine in this horsepower range, verify your engine application before ordering.
• What is the pre-gap size of the NGK ZFR5F Spark Plug? The NGK ZFR5F Spark Plug has a listed pre-gap size of 0.32". The product also has a 5/8" hex size, a flat seat type, and an insulator height of 50.50 mm.
• What are the specifications of the NGK ZFR5F Spark Plug? The NGK ZFR5F has a resistance of 5000 Ohm, a nickel ground electrode core, and a copper center electrode core. Its listed pre-gap size is 0.32", hex size is 5/8", insulator height is 50.50 mm, and seat type is flat.
• Which Mercury spark plugs are interchangeable with the NGK ZFR5F? The NGK ZFR5F Spark Plug is listed as interchangeable with Mercury 33-8M0204728 and Mercury 33-8M0057936. The product description identifies these Mercury part numbers as interchangeable applications for the ZFR5F.
• Is the NGK ZFR5F an OE replacement spark plug? Yes. The NGK ZFR5F is described as an actual OE or equivalent replacement spark plug. NGK also identifies its V-Power spark plugs as offering reliable performance and improved ignitability compared with standard nickel plugs.