Ford F-350 Super Duty Spark Plug Replacement

Gap 0.054in; Plug Type RS9YC

Gap 0.054"

Gap 0.054in; Plug Type RS10PYC

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

2 Plugs Per Cylinder Required Gap 0.044in ; Plug Type RES8PYB5

Gap 0.054"

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

Do Not Gap, Gap is Preset

Do Not Gap, Gap is Preset

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

2 Plugs Per Cylinder Required Gap 0.044in ; Plug Type RES9PYP4

with OE Brown Coil Boots Cam Cover Date After 10/9/2007 Match to Original with 12mm Diameter Threads Below Seat Gap 0.044in OE Type ; Plug Type RET9ZPMPB

Gap 0.054in; Plug Type RS12PYPB5

Dual Plug; 16 Req'd Gap 0.044"

New engine style with brown coil boots only (NGK N/A for old engine design with black coil boots) Gap 0.044"

Gap 0.054in; Plug Type RS8WYPB5

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

Do Not Gap, Gap is Preset

New engine style with brown coil boots only (NGK N/A for old engine design with black coil boots) Gap 0.044"

with OE Brown Coil Boots Cam Cover Date After 10/9/2007 Match to Original with 12mm Diameter Threads Below Seat Gap 0.044in ; Plug Type RET8ZWYPB

2 Plugs Per Cylinder Required Gap 0.044in ; Plug Type RE10WYPB5

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

Gap 0.054"

Dual Plug; 16 Req'd Gap 0.044"

Do Not Gap, is Preset 360- Laser-Welded Iridium Tip Center Electrode; Solid Inconel Nickel Bridge Ground Electrode

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)

w/ Black Ignition Coil Boot; Do Not Gap, is Preset 360- Laser-Welded Iridium Tip Center Electrode; Solid Inconel Nickel Bridge Ground Electrode

Dual Plug; 16 Req'd Gap 0.044"

Gap 0.054" OE Equivalent Design 60,000 mi OE Mfr Recommended Service Interval-Severe Service, 100,000 mi OE Mfr Recommended Service Interval-Normal Service

Dual Plug; 16 Req'd Gap 0.044" OE Equivalent Design 60,000 mi OE Mfr Recommended Service Interval-Severe Service, 100,000 mi OE Mfr Recommended Service Interval-Normal Service

Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology

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 0.052" OE Equivalent Design* 60,000 mi (Severe) / 90,000 mi (Normal) OE Mfr Recommended Service Interval

Gap 0.040 Qty 2 Per Cyl. Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology

Gap 0.052"

Dual Plug; 16 Req'd Gap 0.044"

Gap 0.054"

Gap 0.054"

Gap 0.044in OE Type ; Plug Type 7989 Enhanced over OE Design; One-piece shell; Uses standard 5/8in hex plug socket

Production: 10/09/2007-, w/ Brown Coil Boots

Production: 10/09/2007-, w/ Brown Coil Boots

New engine style with brown coil boots only (NGK N/A for old engine design with black coil boots) Gap 0.044" OE Equivalent Design* 60,000 mi OE Mfr Recommended Service Interval-Severe Service, 100,000 mi OE Mfr Recommended Service Interval-Normal Service

Production: -12/01/2007, w/ Black Coil Boots

1 Piece C-Cut Design; Copper Electrode; Standard Length; 16mm Thread Size; 8 Pack;Set Plug Gap To Manufacturers Recommended Setting

1 Piece; 1 Heat Range Step Colder Than Stock; 9/16in. Hex Size; Resistor; 1.04in. Reach; Tapered Seat Type; 1.25mm Thread Pitch; 12mm Thread Size; 8 Pack;Set Plug Gap To Manufacturers Recommended Setting

1 Pc Design; 1 Range Colder Than PN[8160]; 9/16 in. Hex; 13/16 in. Reach; Resistor; Tapered Seat; 1.25mm Thread Pitch; 16mm Thread Size; 8 Pack Of PN[346C1];Set Plug Gap To Manufacturers Recommended Setting