Bosch (4005) HR8DPX Platinum Plus Spark Plug, Pack of 1
Exclusive platinum technology in the center electrode for quicker starts, smoother acceleration and increased fuel efficiency
Tapered, yttrium enhanced v-profile ground electrode provides a 25% longer performance life
Lower ignition voltage requirement provides reliable cold weather starting and superior operation under all driving conditions
Factory-set gap ¿ once the proper gap is set, there's no need to re-gap
Contains one spark plug
Product Review
Product Description
Bosch Platinum Plus spark plug has exclusive platinum technology with yttrium enhanced ground electrode for quicker starts, smoother acceleration and increased fuel efficiency.
Product Details
Bosch (4005) HR8DPX Platinum Plus Spark Plug, Pack of 1
This review is from: Bosch (4005) HR8DPX Platinum Plus Spark Plug, Pack of 1 (Misc.)
Put these in my 98 K3500 4WD and so far so good. I will update this reivew after some time has passed. These are not gapped per the factory spec, I checked but you are not supposed to change them, I did not and the truck is runnig great.
Help other customers find the most helpful reviews