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Platinum; w/ washered seat
Platinum core technology provides quicker starts, smoother acceleration, and improved fuel efficiency.
  • Platinum center electrode, heat-fused into an extended insulator Reaches self-cleaning temperature only seconds after starting
  • Tapered, yttrium-enhanced v-profile ground electrode Extends service life by 25% vs. original Bosch Platinum, reduces electrode temperature, and improves access to air/fuel mixture
  • Nickel-plated rolled threads For complete anti-seize and corrosion protection
  • Lower ignition voltage requirements vs. other plug designs for reliable cold weather starts and superior operation under all driving conditions

Spark Plug Type Performance Differences

Alternate/OEM Part Number(s): WR9FP

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

Regular Inventory Warranty Information:
12 Months