This plug fits all civilian (12 volt) GM 6.2, and 6.5 diesels with flat blade terminals. Heats fast like the 9g, but will not swell or burnout. Comes with a 1yr warranty. "Replace your plugs in sets whenever possible. If you are running AC 9g plugs it is advisable to upgrade NOW before they swell and get stuck. Also if you have found degraded starting performance after "upgrading" to AC 60g, I think you'll be surprised at how well these will work. I've found these to be the best performing plugs on the market!" - JK When ordering plugs only, we generally ship via USPS Priority Mail. Please be sure to note if US Mail does not deliver to shipping address given.

This plug fits ONLY 24 volt GM/AMG 6.2 and 6.5 military diesels with the narrow flat blade terminals.   Heats fast like the 9g, but will not swell or burnout. Comes with a 1yr warranty.

"Replace your plugs in sets whenever possible. If you are running AC 9g plugs it is advisable to upgrade NOW before they swell and get stuck. Also if you have found degraded starting performance after "upgrading" to AC 60g, I think you'll be surprised at how well these will work. I've found these to be the best performing plugs on the market!" - JK

When ordering plugs only, we generally ship via USPS Priority Mail. Please be sure to note if US Mail does not deliver to shipping address given.

Buy a set of 8ea and $ave!

This plug fits all civilian (12 volt) GM 6.2, and 6.5 diesels with flat blade terminals. Heats fast like the 9g, but will not swell or burnout. Comes with a 1 yr warranty.

"Replace your plugs in sets whenever possible. If you are running AC 9g plugs it is advisable to upgrade NOW before they swell and get stuck. Also if you have found degraded starting performance after "upgrading" to AC 60g, I think you'll be surprised at how well these will work. I've found these to be the best performing plugs on the market!" - JK

When ordering plugs only, we generally ship via USPS Priority Mail. Please be sure to note if US Mail does not deliver to shipping address given.