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Spark Plugs

Iridium ix spark plug
Part # 3521 | Line Code: NGK

Not Fitted / Universal

Product Details
Hex Size 5/8"
Resistor Type Yes
Electrical Terminal Type Removable
Ground Electrode Quantity 1
Center Electrode Tip Material Iridium
Manufacturer Heat Range 9
Ground Configuration Standard
Resistance 5000
Thread Diameter 10.0
Ground Electrode Core Material Nickel Core
Center Electrode Core Material Copper Core
Gap Size 0.032
Seat Type Gasket
Reach 0.75
Insulator Height 50.00
Ground Electrode Tip Design Taper Cut
Stock Number 3521
Part Number CR9EIX
Heavy Duty Supplier Yes
Part Terminology Spark Plug

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

ATV - 2002-98 ATK, 2003-01 CANNONDALE, M/C - 2006 APRILIA, 2008-03 DUCATI, 2003 HON, 2009-88 KAW, 2003-99 MV AUGUSTA, 2003-99 MZ, 2008-92 SUZ, 2004-00 TRIUMPH, 2007 VESPA, 2008-94 YAM, PWC - 2009-03 KAW, SNOW - 2008-03 YAM
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