Super Plus WR9DC+
The Bosch Super Plus Spark Plug utilizes an yttrium enhanced copper core center electrode, making it one of the longest lasting copper core spark plug on the market – by 50% versus even OE plugs.
Bosch Super Plus also features a tapered, v-profile ground electrode for improved cold starts and better fuel ignitability.
Center Electrode Core Material: Nickel-Yttrium and Copper – Center Electrode Tip Material: Nickel-Yttrium – Ground Electrode Tip Material: Nickel-Chromium
Features and Benefits:
- OE-Equivalent and direct fit application.
- Heavy-duty yttrium-enhanced copper core center electrode.
- Tapered, v-profile nickel chromium ground electrode.
- Nickel-plated rolled threads.
- Metal glass fused resistor.
- Angular, five-ribbed insulator design.
- Electrode gap is factory set and never requires adjustment.
- Anti-seize and corrosion protection.
Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines
Part #’s
12-12-1-272-128 / 12 12 1 272 128 / 12121272128
73-90-6-010-110 / 73 90 6 010 110 / 73906010110
Bosch Part #’s WR9DS / 7911 / 90919-01065
