Denso Sk20hr11 (3421) - Iridium Long Life Plugs; Buick Cadillac Infini, Single
Price:
$ 12
- Condition: New
Seller notes
Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug Single Plug Denso # 3421 Extra Long Life Iridium Plug 0.7mm Fine Wire Iridium-Tipped Center Electrode Platinum Tipped Ground Electrode Product Description Iridium plugs have an extremely long life as Iridium is 6x harder and 8x stronger than platinum. Because of the strength and hardness of iridium, there is virtually no electrode wear. This combined with a platinum tipped ground electrode, creates a spark plug that is almost imperv...
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