Saturn Astra Spark Plug Replacement

Gap 0.035in; Plug Type RC12MCC4

Gap 0.044 DENSO is O.E. Manufacturer / Resistor Plug OE

Gap 0.028" OE Equivalent Design 25,000 mi OE Mfr Recommended Service Interval

Gap 0.035in; Plug Type RC12PMB3

Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset

Gap 0.028"

Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

Gap 0.035in; Plug Type RC12PMPB4

Gap 0.035in; Plug Type RC12WMPB4

Gap 0.028"

Gap 0.044 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)

Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology

Gap 0.028" Sell Out and Reorder IZFR5G (Stock # 5887)

Gap 0.044 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap

Gap 0.028"

Gap 0.044 Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap

Gap 0.028"