Buick Roadmaster Spark Plug Replacement

Resistor Type Gap 0.035in ; Plug Type RJ6C

Gap 0.045in OE Type ; Plug Type RV15YC4

Non-Resistor Type Gap 0.035in OE Type ; Plug Type J6C

Non-Resistor Type Gap 0.025in OE Type ; Plug Type J11C

Gap 0.035in; Plug Type RJ14YC

Gap 0.050in; Plug Type RS14YC6

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

Gap 0.027 O.E. Recommended Resistor Plug with Patented U-Groove Design

Resistor Type Gap 0.025in ; Plug Type RJ12C

Gap 0.060 O.E. Recommended 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

Gap .050 (in); Auto

Gap 0.035" OE Equivalent Design

Gap 0.035" OE Equivalent Design

Gap 0.035" OE Equivalent Design

Gap 0.050in; Plug Type RS14PYC6

Gap 0.050"

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

Original Center Electrode and Ground Electrode Material is Platinum 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

OE Style; Auto

Gap 0.050"

Gap 0.045"

Gap 0.035"

Gap .035 (in)

Gap: .045/1.1mm 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 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

Gap 0.045in; Plug Type RV17PMP4

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

Gap 0.050in OE Type ; Plug Type RS14PYPB5

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 Material is Copper/Nickel Do Not Gap, Gap is Preset

Gap 0.050 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap

Gap 0.035"

Gap 0.050"

Gap 0.035"

Gap 0.035"

Gap 0.045"

Gap 0.050in; Plug Type RS14WYPB5

Gap .050 (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 .035 (in)

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

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

Gap 0.050" OE Equivalent Design

Gap 0.050"

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;0.060 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;0.060 in. Plug Gap

14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0574S-4]; 8 Pack;0.045 in. Plug Gap