Ram 4500 Spark Plug Replacement

2 Plugs Per Cylinder Required Gap 0.043in ; Plug Type REC12MCC4

Gap 0.044 Resistor Plug with Patented U-Groove Design

Dual Plug; 16 Req'd Gap 0.044"

Twin Spark System Gap 0.044"

Gap 0.040 Qty 2 Per Cyl. Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

Dual Plug; 16 Req'd Gap 0.044"

2 Plugs Per Cylinder Required Gap 0.043in ; Plug Type REC12WMPB5

with Dual Spark Plugs Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset

with Dual Spark Plugs Original Center Electrode Material is Iridium Do Not Gap, Gap is Preset

Gap 0.044 Qty 2 Per Cyl. 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

Twin Spark System Gap 0.044" OE Equivalent Design 96,000 mi OE Mfr Recommended Service Interval

Dual Plug; 16 Req'd Gap 0.044"

Gap 0.044 O.E. Recommended Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap

Right Cylinder Head;Supersedes part # 68138239AC