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Iridium ix spark plug
Part # 7397 | Line Code: NGK


Not Fitted / Universal

Product Details
Hex Size 5/8"
Seat Type Tapered
Resistor Type Yes
Electrical Terminal Type Non-Removable
Thread Diameter 14.0
Ground Electrode Quantity 1
Center Electrode Tip Material Iridium
Reach 17.5
Ground Configuration Standard
Resistance 5000
Manufacturer Heat Range 5
Ground Electrode Core Material Nickel Core
Center Electrode Core Material Copper Core
Insulator Height 53.00
Gap Size 0.040
Ground Electrode Tip Design Taper Cut
Stock Number 7397
Part Number TR5IX
Heavy Duty Supplier Yes

Features & Benefits
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Application Summary

DOD/EAG 1992-88; FORD/LIN/MERC 2012-74; GM 2014-75; JAG 1988-77; MAZ 2009-94; M-BENZ 1993-84; VOL 1990-76, I/O - 2005-94 INDMAR, 2000-98 MARINE PWR, 2006-00 MERC, 1998-87 OMC
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