Chevrolet P20 Spark Plug Replacement

w/o HEI Gap 0.035" OE Equivalent Design

Gap 0.035in OE Type ; Plug Type RV12YC

Gap 0.045in; Plug Type RV15YC4

Light Duty Gap 0.045in OE Type ; Plug Type RV17YC

Gap 0.035 O.E. Recommended Resistor Plug with Patented U-Groove Design

Gap 0.044 O.E. Recommended Resistor Plug with Patented U-Groove Design

Gap 0.035 O.E. Recommended Resistor Plug with Patented U-Groove Design

Light Duty Gap 0.045" OE Equivalent Design

Gap 0.060" OE Equivalent Design

Gap 0.035" OE Equivalent Design

w/o HEI Gap 0.035" OE Equivalent Design

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

Gap 0.045in; Plug Type RV17PMC4

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

Gap .045 (in); Auto

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

Gap 0.035"

Light Duty Gap 0.045"

w/o HEI Gap 0.035"

Gap: .045; Light Duty 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 0.045in; Plug Type RV17PMP4

Gap .035 (in); Auto

Gap 0.035"

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

Gap 0.060"

Light Duty Gap 0.045"

w/o HEI Gap 0.035"

Gap 0.035"

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 .035 (in)

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

14mm Thread; .460 in. Reach; Heat Range 6; Each;0.040 in. Plug Gap

Single; Plug Type 6IR5Y; [Available While Supplies Last];0.035 in. Plug Gap

14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0576S-4]; 8 Pack;0.040 in. Plug Gap

Stock Heat Range; 0.032 in. Gap; 5/8 in. Hex Size; .460 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; 8 Pack Of PN[0576];0.040 in. Plug Gap