Bosch conventional Nickel-Copper Spark Plugs are designed to deliver performance and value. Heavy-duty yttrium-enhanced nickel center electrode with copper core provides a longer lasting copper core spark plug. Engineered to meet or exceed Original Equipment specifications for nickel-copper core spark plugs.
Features & Benefits:- Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
- Copper core provides broader heat range to resist pre-ignition and fouling
- Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
- Angled, ribbed insulator design prevents misfire due to flash-over
- Metal glass fused resistor maximizes interference suppression
 Which BOSCH Spark Plug Is Right For You?
| Material / Series |
Lifespan / Durability |
Performance / Ignitability |
Efficiency / Fuel Economy |
Copper / Nickel
 |
★★ |
★ |
|
Platinum
 |
★★★★ |
★★★★ |
★★ |
Double Platinum
 |
★★★★★ |
★★★ |
★★ |
Iridium
 |
★★★★★★ |
★★★★★ |
★★★ |
Double Iridium
 |
★★★★★★★ |
★★★★★ |
★★★ |
Double Iridium Pin-to-Pin
 |
★★★★★★★ |
★★★★ |
★★★ |
 Additional Resources
Diagram of Proper Torquing
Spark Plug Condition Identification
Spark Plug Gap Illustrations
Spark Plug Temperature Curves-Heat Range
|
| OEM / Interchange Numbers: WR8DC |
