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|Center Electrode Core Material:||Copper Core|
|Center Electrode Tip Material:||Iridium|
|Electrode Core Material:||Iridium|
|Electrode Tip Material:||Iridium|
|Gap Size:||0.032 in|
|Ground Electrode Core Material:||Nickel Core|
|Ground Electrode Quantity:||1|
|Ground Electrode Tip Design:||Taper Cut|
|Ground Strap Quantity:||1|
|Manufacturer Heat Range:||7|
|Shorty Spark Plug:||No|
|Thread Diameter:||10 mm|
|Wrench Diameter:||5/8 in|
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Q:I need a NGK CR7E. How does the plug I need differ from the NGK CR7EIX ?
A:The differences of NGK Nickel Spark Plug (CR7E) - Part No. 4578 from NGK Iridium IX Spark Plug (CR7EIX) - Part No. 7385 is in NGK Nickel Spark Plug (CR7E) , its Electrode Core and Tip Material is made of nickel and its Tip Configuration is Stud. While in NGK Iridium IX Spark Plug (CR7EIX), its Electrode Core and Tip Material is made of Iridium and its Tip Configuration is Loose. For compatibility of this part with your vehicle please provide the year, make, model and engine size of your vehicle application or you can contact us directly at 1-877-ADVANCE (238-2623) or visit your nearest Advance Auto Parts store for further assistance.
A:I have a 2010 Yamaha Majesty (YP400). Yamaha uses a CR7E. I have been using the CR7EIX without any issues. The Main difference is, The Iridium has a Harder and Smaller tip than the Stock. Iridium is used in New Vehicles (From manufacturer. The Smaller tip requires less power to fire. Iridium doesn't wear out as fast.