Jaguar XJ12 Spark Plug Replacement

Gap 0.035in OE Type ; Plug Type RS9YC

Resistor Type Gap 0.025in ; Plug Type RN9YC

Non-Resistor Type Gap 0.025in ; Plug Type N9YC

Original Center Electrode Material is Copper/Nickel

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

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

Gap 0.025"

Gap 0.025" OE Equivalent Design

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

Gap 0.035" OE Equivalent Design

Gap 0.025" OE Equivalent Design

Gap 0.035" OE Equivalent Design 30,000 mi OE Mfr Recommended Service Interval

Gap 0.025"

Gap 0.035" OE Equivalent Design

w/ Lucas Distibutor

Gap 0.025"

Gap: .025/0.6mm Enhanced Tapered Ground Electrode w/ Platinum Chip

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

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

Gap 0.025in; Plug Type RN9PYP

Gap 0.035in; Plug Type RS9PYP4

Gap 0.035in; Plug Type RS8WYPB5

Gap 0.025in; Plug Type RN8WYPB3

Gap 0.025"

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

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 0.032 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 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology