Suggested Retail: $9.40. ACDelco GM Original Equipment Iridium Spark Plug - ACDelco Professional Iridium Spark Plugs are high-quality replacements ideal for various vehicles. They feature an iridium composition that provides a high melting point and wear resistance. The plugs are designed to meet fit, form, and function expectations, offering excellent engine idle stability and smooth performance. Their suppressor seal meters spark energy for long electrode life, and an iridium fine-wire electrode helps burn away carbon deposits. Brand: ACDelco Model: ‎41-108 -- LOT STICKER: TCE-BOX-BOXTCED0971-ITEM-3f5fcbb5___LPNNG4BSMRR7W ACDelco GM Original Equipment 41108 Iridium Spark Plug -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.