1998 Lincoln Navigator Spark Plug

Part Number: W0133-1890639

Notes: Platinum Twin-Tip

Product Remark: PT16TT ND

Features:

• Platinum center electrode
• Platinum ground electrode
• Premium shell construction with machine-rolled threads
• Sustained spark performance over 60,000 miles
• Reduced secondary required voltage, increased ignition efficiency DENSO engineering studies show that Double Platinum plugs can run longer with reduced erosion, minimizing spark gap growth throughout the life of the plug.

Part Number: W0133-1632073

Notes: Iridium Power

Product Remark: Iridium IT16

Features:

• Tapered cut, U-Groove ground electrode
• 0.4mm iridium center electrode
• 360-degree laser welding assembly process
• Required ignition voltage reduced
• Unsurpassed center electrode durability
• Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.

Part Number: W0133-1642286

Notes: U-Groove

Features:

• 100 percent pre-fired to ensure reliable operation
• Patented U-Grove ground electrode
• Bonded; center electrode and insulator for a gas-tight seal
• Copper core center electrode for superior thermal conductivity
• Unique five-rib insulator reduces flashover
• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for t

Part Number: W0133-1635906

Notes: Double Platinum 

Product Remark: PT16EPR-L13 ND

Features:

• Platinum center electrode
• Platinum ground electrode
• Premium shell construction with machine-rolled threads
• Sustained spark performance over 60,000 miles
• Reduced secondary required voltage, increased ignition efficiency DENSO engineering studies show that Double Platinum plugs can run longer with reduced erosion, minimizing spark gap growth throughout the life of the plug.

Part Number: 5655-05169631

Notes: Iridium Power -- Gap 0.044; Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Iridium Alloy (90% Iridium)

Part Number: 5655-05445067

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

Part Number: 5655-05169545

Notes: Platinum TT -- Gap 0.040; Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

Part Number: 5655-05052086

Notes: U-Groove Conventional -- Gap 0.060; Resistor Plug with Patented U-Groove Design

Features:

• T16EPR-U15
• Increases engine performance and throttle response
• Efficient fuel consumption
• Improved cold-starting
• Stable combustion during idling