Original Center Electrode Material is Copper/Nickel Gap 0.034 in
Gap 0.054in; Plug Type RS12YC
Gap 0.032 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.060 Resistor Plug with Patented U-Groove Design
Gap 0.054" OE Equivalent Design 30,000 mi OE Mfr Recommended Service Interval
Gap 0.054in; Plug Type RS10PYC4
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.054"
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap: .054/1.4mm 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
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Original Center Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.054in; Plug Type RS12PYPB5
Gap 0.054in; Plug Type RS12WYPB4
Original Center 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 O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap
Gap 0.054"
Gap .054 (in)
Gap 0.044 Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap
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 0.054"
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 0.054"
Gap 0.054"
14mm Thread; .708 in. Reach; Heat Range 6; 4 Pack;0.054 in. Plug Gap
14mm Thread; .708 in. Reach; Heat Range 6; 8 Pack;0.054 in. Plug Gap
Browse our selection of quality spark plug parts designed specifically for your Lincoln Mark VIII. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Anniversary · Base · LSC
Coupe · Sedan
V8 4.6L
Automatic
