GMC C3500 Spark Plug Replacement

Heavy Duty; Gap 0.045" OE Equivalent Design

GM Original Equipment Conventional; Gap .045; Light Duty

Gap 0.045in OE Type ; Plug Type RV12YC

Gap 0.035in OE Type ; Plug Type RV15YC4

Gap 0.060in; Plug Type RS14YC6

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

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

Gap 0.060 Resistor Plug with Patented U-Groove Design

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

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

Gap 0.045" OE Equivalent Design

Heavy Duty; Gap 0.045" OE Equivalent Design

Gap 0.035" OE Equivalent Design

Gap 0.060in; Plug Type RS14PYC6

Gap 0.060"

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

Gap 0.035in; Plug Type RV17PMC4

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

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

Gap .035 (in); Auto

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

Gap 0.060"

Heavy Duty; Gap 0.045"

Gap 0.045"

Gap 0.035"

Gap 0.060in OE Type ; Plug Type RS14PYP5

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

Gap: .040/1.0mm Enhanced Tapered Ground Electrode w/ Platinum Chip

Gap: .035 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 .060 (in)

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

Gap 0.060in OE Type ; Plug Type RS14PMPB5

Gap 0.035in; Plug Type RV17PMP4

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

Gap .035 (in); Auto

Gap 0.035"

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

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

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

Gap 0.060in; Plug Type RS12WMPB4

Gap 0.050 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap

Gap 0.045"

Gap 0.035"

Heavy Duty; Gap 0.045"

Gap 0.060"

Gap 0.060in; Plug Type RS14WYPB5

Gap .040 (in)

Gap .060 (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)

Rapidfire

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 0.060" OE Equivalent Design* 100,000 mi OE Mfr Recommended Service Interval

Gap .035 (in)

Gap .035 (in)

Gap 0.060"

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

Gap 0.060"

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

Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap Available While Supplies Last

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

14mm Thread; .708 in. Reach; Heat Range 6; 4 Pack;0.045 in. Plug Gap

Double Platinum Shorty; Individual;0.060 in. Plug Gap

14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;0.035 in. Plug Gap

14mm Thread; .708 in. Reach; Heat Range 6; 8 Pack;0.045 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

14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0574S-4]; 8 Pack;0.035 in. Plug Gap