1957 Jaguar XK140 Spark Plug

Part Number: 15651-07972736

Notes: Spark Plug -- Gap: .025; Enhanced Tapered Ground Electrode With Platinum Chip

Features:

• Meets or exceeds OEM specifications
• Rigorous quality control measures
• 12-month SKP limited warranty

Part Number: 15651-05008399

Notes: GM Original Equipment Conventional -- New; Gap .025

Part Number: 15651-07456005

Notes: Professional Double Platinum -- New; 8:1 :1 Compression Ratio; C -Type Head; Gap 0.025in

Part Number: 15651-09182996

Notes: Copper Resistor Spark Plug -- .025 Gap; OE Style

Features:

• Autolite Copper Core plugs are designed to meet or exceed OES design requirements.

Part Number: 15651-09183076

Notes: Double Platinum Spark Plug -- .025 Gap

Features:

• Autolite Double Platinum plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug.

Part Number: 15651-03651194

Notes: Iridium Spark Plug -- Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; .025 Gap

Features:

• Our best spark plug! Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition.

Part Number: 15651-09183039

Notes: Platinum Spark Plug -- .025 Gap

Features:

• Autolite Platinum plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability.

Part Number: 15651-09023645

Notes: Champion Iridium -- Plug Type RN8WYPB3; 8 :1 Compression Ratio; C -Type Head; Gap 0.025in

Part Number: 15651-09023601

Notes: Copper Plus -- Plug Type L82C; 7 :1 Compression Ratio; Non-Resistor Type; Gap 0.025in; OE Type

Part Number: 15651-09023594

Notes: Copper Plus -- Plug Type N3C; 9 :1 Compression Ratio; D -Type Head; Non-Resistor Type; Gap 0.025in

Part Number: 15651-05218447

Notes: Copper Plus -- Plug Type N7YC; 8 :1 Compression Ratio; C -Type Head; Gap 0.025in

Part Number: 15651-05027564

Notes: Copper Plus -- Plug Type RN3C; 9 :1 Compression Ratio; D -Type Head; Resistor Type; Gap 0.025in

Part Number: 15651-09023495

Notes: Copper Plus -- Plug Type RN7YC; 8 :1 Compression Ratio; C -Type Head; Resistor Type; Gap 0.025in

Part Number: 15651-05627886

Notes: Double Platinum Power -- Plug Type RN9PYP; 8 :1 Compression Ratio; C -Type Head; Gap 0.025in

Part Number: 15651-05048445

Notes: Copper Resistor Spark Plug -- OE Style; .025"/0.6mm; Plug Material: Copper

Features:

• Standard Copper Core Spark Plug Tested to Ford specifications for performance and emissions.
• Resistant to oxidation and arc erosion.
• Multi-rib insulator protects against misfire.
• Service interval of up to 60,000 miles.
• Nickel-Alloy Spark Plug Feature electrodes engineered for extended life without platinum enhancements.
• Nickel-plated shell for corrosion resistance.
• Non-Extended-Tip Spark Plug Used in most older-model car engines and some current-model truck engines.
• Commercial and small engine applications.
• Extended-Tip Spark Plug Fits most automotive as well as many specialty applications.
• Used in most modern engines.
• Helps prevent fouling at low speeds.
• Provides self-cleaning action at higher speeds.
• Extra-Extended-Tip Spark Plug Used in certain specially designed engines.
• Projects farther into combustion chamber to achieve optimum spark location.
• Platinum-Tip Spark Plug Used for conventional distributor-equipped and coil-on-plug ignition systems found in many Ford, Lincoln and Mercury vehicles.
• High melting point provides excellent resistance to erosion.
• Provides service intervals from 60,000 to 100,000 miles.
• Available as replacement spark plugs for older model-year vehicles.
• Designated by the letters P or E in the part number suffix on plug body and box.
• Helps realize extended service intervals of 60,000 to 100,000 miles
• Fine-Wire Double-Platinum Spark Plug Enhanced electrode wear vs single platinum.
• 2 to 3 times more platinum vs single platinum reduces the required firing voltage, resulting in diminished erosion of the platinum and increased resistance to fouling.
• Fits most automotive and many specialty applications.
• Designated by the letters F or FE in the part number suffix on plug body and box.
• 0.8 mm fine-wire design.
• Includes a platinum pad on both electrodes.
• Proprietary platinum pad on side wire electrode.
• Service interval of up to 100,000 miles.
• Platinum-Iridium Spark Plug Can be used in any engine regardless of ignition system.
• Iridium-enhanced center electrode.
• interval of up to 100,000 miles.
• High-Strength Steel High Thread Spark Plug 0.8 mm fine-wire design.
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Part Number: 15651-03398994

Notes: SUPER