MG MGB Spark Plug Replacement

Gap 0.025in; Plug Type L92YC

Resistor Type Gap 0.024in ; Plug Type RN9YC

Gap 0.032 O.E. Recommended Standard Plug with Patented U-Groove Design

Non-Resistor Type Gap 0.024in OE Type ; Plug Type N9YC

Original Center Electrode Material is Copper/Nickel

Gap 0.032 O.E. Recommended Resistor Plug with Patented U-Groove Design

Gap 0.025"

Gap 0.025" OE Equivalent Design

Gap 0.025"

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

Gap 0.024in; Plug Type RN9PYP

Gap 0.024in; Plug Type RN8WYPB3

Gap 0.025"

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