Cadillac Seville Spark Plug Replacement

Plug Type RJ18YC6 Gap .060 OE Type

Gap 0.060in OE Type ; Plug Type RV15YC6

Gap 0.060 O.E. Recommended Resistor Plug with Patented U-Groove Design

Original Center Electrode Material is Copper/Nickel Gap 0.06 in

GM Original Equipment Conventional; Gap .060

Gap 0.060in OE Type ; Plug Type RS14YC6

Gap 0.050in; Plug Type RS12YC

Gap 0.060 O.E. Recommended Resistor Plug with Patented U-Groove Design

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

Gap 0.060 O.E. Recommended Resistor Plug with Patented U-Groove Design

OE Style; Auto

Gap 0.060" OE Equivalent Design

Gap 0.060" OE Equivalent Design

Gap 0.060" OE Equivalent Design

w/ Conventional Design

Gap 0.060in; Plug Type RS14PYC6

Gap 0.050"

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

Gap 0.050in; Plug Type RS10PYC

Gap 0.060in; Plug Type RN14PMC5

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

Platinum Performance

w/ Standard Plug

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

w/ Conventional Design

Gap 0.050"

Gap 0.060"

Gap 0.060"

Gap: .080/2.0mm Enhanced Tapered Ground Electrode w/ Platinum Chip

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

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

Gap: .050/1.3mm 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 .050 (in)

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

w/ Platinum Design

Gap .060 (in)

Gap 0.060in; Plug Type RN14PMP5

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 0.060in; Plug Type RS14PYPB5

Gap 0.060in; Plug Type RS10PYP

Gap 0.050in OE Type ; Plug Type RS12PYPB5

Gap 0.060in; Plug Type RS8WYPB5

Gap 0.050in; Plug Type RS12WYPB4

Original Center 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 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"; Interchangeable with SP-439-AX; Plug Material: Double Platinum

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

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

Gap .060 (in)

Gap 0.060"

Gap 0.060"

Gap 0.050"

Gap 0.060in; Plug Type RS14WYPB5

GM Original Equipment Double Platinum; Gap 0.060in

Gap .050 (in)

OE Style

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"

Gap 0.050" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval

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

Platinum Performance

w/ Platinum Design

Platinum Plug

Gap 0.050"

Gap 0.050"

Platinum Performance

Platinum Plug

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

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; .708 in. Reach; Heat Range 6; 8 Pack;0.060 in. Plug Gap