Hi Rickey, I am pleased to assist you. Yes, these are already pre-gapped at the .043 setting as indicated in the "Fitment Information" for the 2012 GMC Acadia 6 Cyl 3.6L. If this is the setting specified for your vehicle, you can use the link below to order while the part is in stock. Your order will come with a 30-day post-purchase price match guarantee. I hope this helps and enjoy shopping! https://www.carparts.com/spark-plug/ac-delco/set-ac17-6?can=CPGG4850_CSQA_20241031

Hi James, thank you for reaching out. If you mean pre-gapped, then yes. You can use this link to order the part and take advantage of our low price for this item: https://www.carparts.com/spark-plug/ac-delco/set-ac17-6?can=CPAP3648_CSQA_20240310 I hope this helps. Happy shopping.

Hi Russ, I'm glad to assist you. These are already pre-gapped to the factory 0.042 setting. Click on the link below for direct ordering to take advantage of our limited stocks. I hope this helps, and happy shopping. https://www.carparts.com/spark-plug/ac-delco/set-ac17-6?can=CPAE1047_CSQA_20231115

Hi Robert, thank you for reaching out. The iridium AC Delco 41-103 spark plugs are better than the platinum AC Delco AC17 spark plugs. However, if you're on a budget yet want an upgrade, a platinum spark plug is the answer. Should you decide to get the iridium spark plugs, you can use this link to order the AC Delco® Iridium series spark plug set and take advantage of our low price: https://www.carparts.com/details/Chevrolet/Trailblazer/AC_Delco/Spark_Plug/2003/LS/6_Cyl_4-dot-2L/SET-AC41-103-6.html?can=CPAP3648_CSQA_20230708 If you want the RapidFire Performance Platinum series, you can use this link to order the set at a low price today: https://www.carparts.com/spark-plug/ac-delco/set-ac17-6?can=CPAP3648_CSQA_20230708 I hope this helps. Enjoy shopping.

Hi Ricardo, thank you for reaching out. These are long spark plugs. If your vehicle information matches this product, you can use this link to order the part and take advantage of our low price for this item: https://www.carparts.com/spark-plug/ac-delco/set-ac17-6?can=CPAP3648_CSQA_20230628 I hope this helps. Enjoy shopping.