INFINITI QX4 Spark Plug Replacement

For City Driving Original Center Electrode Material is Copper/Nickel Gap 0.044 in

Gap 0.040in; Plug Type RC12YC

For Sustained High Speed Driving To 11/1997 Original Center Electrode Material is Copper/Nickel Gap 0.04 in

Gap 0.044in; Plug Type REC10YC4

Gap 0.044 Resistor Plug with Patented U-Groove Design

Gap .043 (in); Auto

Gap 0.040in; Plug Type RC12PYC

Gap 0.039"

Production: 09/1996-06/1997

Gap 0.044"

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

Production: 09/1996-06/1997

For City Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

For Sustained High Speed Driving To 11/1997 Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset

Gap 0.044"

For Sustained High Speed Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

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

Production: 07/1997-10/1997

Gap 0.044in OE Type ; Plug Type REC10PYPB4

Production: 09/1996-06/1997

Gap 0.044 Resistor Plug with Patented U-Groove Design

For Sustained High Speed Driving To 11/1997 Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset

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

For Sustained High Speed Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

For City Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

Gap 0.044"

Gap 0.040in; Plug Type RC11PYPB4

Gap 0.039" Actual OE Manufacturer 105,000 mi OE Mfr Recommended Service Interval

For City Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

For Sustained High Speed Driving To 11/1997 Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset

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

Gap 0.044"

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

Gap 0.040in; Plug Type RC12WYPB4

For Sustained High Speed Driving Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset

Gap 0.044"

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

Gap 0.044 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap

Gap 0.044"

Gap 0.044in; Plug Type REC10WYPB4

Gap .040 (in)

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 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

Gap .040 (in)

Production: 11/1997-

Gap 0.044"

Gap 0.044"

Gap 0.044"

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

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

Gap 0.044" Actual OE Manufacturer 105,000 mi OE Mfr Recommended Service Interval

Production: 09/1996-06/1997

Production: 09/1996-06/1997