Product Overview
SPARK PLUG STK #4291
ZFR6F-11 NGK Spark Plug 4291
Resistance: 5000 Ohms
Ground Electrode Tip Design: Standard
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Nickel w/ V-groove
Pre-Gap Size: .044 in
Ground Electrode Quantity: 1
Hex Size: 5/8 in
Insulator Height: 50.50 mm
Manufacturer Heat Range: 6
Seat Type: Flat
Reach: .75 in
Thread Diameter: 14.00 mm
