hi all i have an 09 sierra with the 4.8 vortec.
its time for new spark plugs but im a bit confused.
acdelco no longer makes the 41-985 plugs ive read their new part number is 41-110 however when i go on the rock auto website it lists 41-162 for my truck. i have done alot of looking online including the acdelco website. i cant figre out if they are different plugs or if its just another updated part number. im pretty sure the are all iridium plugs so i dont think thats the difference.
thanks for any advice on this.
its time for new spark plugs but im a bit confused.
acdelco no longer makes the 41-985 plugs ive read their new part number is 41-110 however when i go on the rock auto website it lists 41-162 for my truck. i have done alot of looking online including the acdelco website. i cant figre out if they are different plugs or if its just another updated part number. im pretty sure the are all iridium plugs so i dont think thats the difference.
thanks for any advice on this.