Gap 0.032in OE Type ; Plug Type RC12YC
Gap 0.032 O.E. Recommended Standard Plug with Patented U-Groove Design
Gap 0.032 Resistor Plug with Patented U-Groove Design
Gap 0.032 O.E. Recommended Resistor Plug with Patented U-Groove Design
Gap 0.032" OE Equivalent Design 30,000 mi OE Mfr Recommended Service Interval
Gap 0.032"
Gap 0.032in; Plug Type RC12PYC
Gap 0.032"
Optional Original Center Electrode Material is Copper/Nickel 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 0.040 Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
Original Center Electrode and Ground Electrode Material is Platinum Do Not Gap, Gap is Preset
Gap 0.032in; Plug Type RC12WYPB4
Gap 0.044 Platinum Plug - Long Life Platinum Plug with Taper Tip & Patented U-Groove Design
Gap .032 (in)
Gap 0.032"
Gap 0.039"
Gap .040 (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)
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 0.039"
Gap 0.039" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval Sell Out and Reorder IFR5E11 (Stock # 7994)
Gap .040 (in)
Gap 0.039"
Gap 0.039" OE Equivalent Design 100,000 mi OE Mfr Recommended Service Interval
Browse our selection of quality spark plug parts designed specifically for your Mercedes-Benz S420. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base
Sedan
V8 4.2L
Automatic
