Mercedes-Benz C300 Spark Plug Replacement

Gap 0.032in; Plug Type RER8YC

Gap 0.032"

Gap 0.032in; Plug Type RER8WYPB4

Gap 0.032"

Gap 0.035 Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)

Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset

Gap 0.032"

Gap 0.032" OE Equivalent Design 91,000 mi OE Mfr Recommended Service Interval

Gap 0.028" Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs. 50,000 mi OE Mfr Recommended Service Interval

Gap 0.032 O.E. Recommended Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap

Specially indexed spark plug. Do not use alternatives. Gap 0.028" Actual OE Manufacturer; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs. 46,500 mi OE Mfr Recommended Service Interval

Specially indexed spark plug. Do not use alternatives. Gap 0.028" OE Equivalent Design; OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs. 60,000 mi OE Mfr Recommended Service Interval