Pontiac G3 Spark Plug Replacement

Gap 0.042in; Plug Type RC9MC4

Gap 0.036" OE Equivalent Design* 37,500 mi OE Mfr Recommended Service Interval

Gap 0.044 O.E. Recommended Resistor Plug

Gap 0.042in; Plug Type RC12PMC4

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

Gap 0.036"

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

Gap 0.042in; Plug Type RC10PLPB4

Gap 0.042in; Plug Type RC10WMPB4

Gap 0.036"

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

Gap 0.036"

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

Gap 0.036"

Gap 0.036"

Single; Plug Type 7IR6Y; [Available While Supplies Last];0.043 in. Plug Gap