NGK ITR4A-15 - Alternative spark plugs

Replacement spark plugs for NGK ITR4A-15:

Brand Model
Autolite XP606
Champion 9404
Denso 5325
Denso IT16
NGK stk 5599

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The Spark Plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.