|ACDELCO R42XLS Specifications|
|Center Electrode Core Material||Copper|
|Center Electrode Tip Material||Nickel Alloy|
|Ground Electrode Tip Design||Standard|
|Hex Size (IN)||13/16|
|Insulator Height (in)||2.224|
|Insulator Height (mm)||56.49|
|Manufacturer Heat Range||2|
|Pre-Gap Size (IN)||0.035|
|Pre-Gap Size (MM)||0.89|
|Thread Diameter (IN)||0.551|
|Thread Diameter (MM)||14||
|Professional; Conventional; Pre-Set Gap: 0.035"|
|ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance.|
Features & Benefits:
- A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling.
- Hot-tip insulator heats fast and fires hot.
- The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber.
Which ACDELCO Spark Plug Is Right For You?
|Material / Series
||Lifespan / Durability
||Performance / Ignitability
|| Efficiency / Fuel Economy
|Copper / Nickel
ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
|GM ORIGINAL EQUIPMENT
|GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors.
|ACDELCO GOLD (PROFESSIONAL)
|ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors.
Closeout Inventory Warranty Information:Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).Regular Inventory Warranty Information:24 Month / Unlimited Mile Limited WarrantyWarranty Details