Gap: .050; Type - Standard Service Plug; Plug Material: Copper; -409
Gap 0.054in; Plug Type RS10LC
Original Center Electrode Material is Copper/Nickel Gap 0.044 in
Original Center Electrode Material is Copper/Nickel Gap 0.044 in
Original Center Electrode Material is Copper/Nickel Gap 0.034 in
with 14mm Diameter Threads Gap 0.035in OE Type ; Plug Type RV12YC
Original Center Electrode Material is Copper/Nickel
Type - Alternative Plug; Gap: .035; Plug Material: Platinum
Gap 0.044in OE Type ; Plug Type RV15YC4
Gap 0.044in OE Type ; Plug Type RS14YC
Gap 0.044in OE Type ; Plug Type RV17YC
Gap 0.044in OE Type ; Plug Type RC14YC
Gap 0.050in OE Type ; Plug Type RS14LC
Gap 0.035in OE Type ; Plug Type RF11YC
Gap 0.054in; Plug Type RS12YC
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
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 0.032 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.032 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 0.034" OE Equivalent Design
Gap 0.044" OE Equivalent Design
Gap 0.044" OE Equivalent Design
Replaces Original Half Thread Design; Auto
Gap 0.034" OE Equivalent Design
Gap 0.054" OE Equivalent Design 30,000 mi OE Mfr Recommended Service Interval
Gap 0.044" OE Equivalent Design
Gap 0.050" OE Equivalent Design 30,000 mi OE Mfr Recommended Service Interval
Gap 0.035 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.035 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.054"
Gap 0.044in; Plug Type RS10PYC
Gap 0.050in; Plug Type RS14ZPYC5
.050 Gap OE half thread design replaced by full thread design Use until inventory is depleted
Gap 0.034in; Plug Type RS14PMC4
Gap 0.034in; Plug Type RS10PYC4
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Gap 0.050in; Plug Type RE10PMC5
Gap 0.044in; Plug Type RV17PMC4
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Obsolete; OE half thread design replaced by full thread design .050"/1.3mm
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
OE Style; Auto
Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.044in; Plug Type RS14PYPB
Gap 0.054in; Plug Type RS12PLP
with 14 mm Diameter Threads Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Gap 0.054"
Gap 0.034"
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Gap 0.044"
Gap 0.044"
Gap 0.050"
Gap 0.054"
Gap 0.044"
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
California; Gap: .060 Enhanced Tapered Ground Electrode w/ Platinum Chip
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap: .054/1.4mm Enhanced Tapered Ground Electrode w/ Platinum Chip
Gap: .044 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
Type - Standard Service Plug; Gap: .044; Plug Material: Copper
Gap 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Gap .054 (in)
Gap 0.044in; Plug Type RV17PMP4
Gap 0.050in; Plug Type RS14ZPYPB
Gap 0.044in; Plug Type RC12PYP
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
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap .035 (in); Auto
Gap 0.050in OE Type ; Plug Type RES11PYP5
Gap 0.054in; Plug Type RS12PYPB5
Gap 0.050"
Gap 0.054in; Plug Type RS12WYPB4
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
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Original Center Electrode Material is Copper/Nickel Do Not Gap, Gap is Preset
Original Center 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
Gap 0.044in; Plug Type RC12WYPB4
Gap 0.050 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.050 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.040 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.060 Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.050in; Plug Type RE10WYPB5
Gap .044 (in)
Gap 0.044"
Gap 0.044"
Gap 0.044"
Gap 0.054"
Gap 0.050"
Gap 0.034"
Gap 0.050"
Gap 0.034"
Gap 0.054"
Gap 0.044in; Plug Type RS14WYPB5
Gap 0.050in; Plug Type RS14WLPB5
Gap .054 (in)
Gap .050 (in)
Gap .054 (in)
Replaces Original Half Thread Design
Gap 0.040 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 Iridium Power - Performance Upgrade with Worlds 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 0.044 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 0.044 Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Gap 0.054" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
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
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 0.034"
Gap 0.054"
14mm Thread; .460 in. Reach; Heat Range 6; Each;0.035 in. Plug Gap
Single; Plug Type 16IR5Y; [Available While Supplies Last];0.035 in. Plug Gap
Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap Available While Supplies Last
Single; Plug Type 5IR5Y; 14 mm. Thread; 0.9840 Reach
14mm Thread; .708 in. Reach; Heat Range 6; 4 Pack;0.054 in. Plug Gap
Double Platinum Shorty; Individual;0.054 in. Plug Gap
Standard; Shorty Plug For Headers; 4 Pack;0.044 in. Plug Gap
14mm Thread; .460 in. Reach; Heat Range 6; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;0.043 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;0.054 in. Plug Gap
14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0576S-4]; 8 Pack;0.035 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];0.035 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
Browse our selection of quality spark plug parts designed specifically for your Mercury Cougar. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
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