Best Yttrium Tungsten Electrode

Bosch (4478) WGR8DQP Platinum +4 Spark Plug, Pack of 1

Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance.
Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life.
Electrode gap is factory set to provide ease of installation - never requires adjustment.
Never requires gapping, the electrode gap is factory-set and never requires adjustment.
Provides ease of installation - never requires adjustment.

Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance.
Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life.
Electrode gap is factory set to provide ease of installation - never requires adjustment.
Never requires gapping, the electrode gap is factory-set and never requires adjustment.
Provides ease of installation - never requires adjustment.

Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance.
Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life.
Electrode gap is factory set to provide ease of installation - never requires adjustment.
Never requires gapping, the electrode gap is factory-set and never requires adjustment.
Provides ease of installation - never requires adjustment.

Revolutionary surface air gap firing technology featuring two yttrium-enhanced ground electrodes delivers a longer, more powerful spark for optimum engine performance.
Two yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for more efficient combustion...plus a longer performance life.
More platinum in the center electrode further increases performance life.
Electrode gap is factory set to provide ease of installation never requires adjustment.
Provides ease of installation -- never requires adjustment.

Revolutionary surface air gap firing technology featuring two yttrium-enhanced ground electrodes delivers a longer, more powerful spark for optimum engine performance.
Two yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for more efficient combustion...plus a longer performance life.
More platinum in the center electrode further increases performance life.
Electrode gap is factory set to provide ease of installation never requires adjustment.
Provides ease of installation -- never requires adjustment.

360 Degree Continuous Laser Welded Platinum Center Electrode Featuring Fine Wire Design.
Copper Core Ground Electrode. Large, Copper Core Center Electrode.
Tapered Yttrium Enhanced Ground Electrode.
Nickel-Plated Shell With Rolled Threads. Promotes Durability And Long Life.

Full platinum tip ensures virtually no gap erosion for long plug life.
Yttrium enhanced, high nickel alloy side electrode maintains precise gap to increase plug life.
Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts, quicker acceleration, and improved fuel economy.
Platinum alloy pad on ground electrode provides extended durability and service life and platinum-to-platinum firing.
Nickel-plated steel shell for long-life corrosion resistance.

MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions.
IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer.
CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life.
high nickel alloy side electrode maintains precise gap.
AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs.

Full platinum tip ensures virtually no gap erosion for long plug life.
Yttrium enhanced, high nickel alloy side electrode maintains precise gap to increase plug life.
Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts, quicker acceleration, and improved fuel economy.
Platinum alloy pad on ground electrode provides extended durability and service life and platinum-to-platinum firing.
Nickel-plated steel shell for long-life corrosion resistance.

Full platinum tip ensures virtually no gap erosion for long plug life.
Yttrium enhanced, high nickel alloy side electrode maintains precise gap to increase plug life.
Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts, quicker acceleration, and improved fuel economy.
Platinum alloy pad on ground electrode provides extended durability and service life and platinum-to-platinum firing.
Nickel-plated steel shell for long-life corrosion resistance.

Tapered, v-profile nickel chromium ground electrode for improved cold starts and fuel ignitability.
Heavy-duty, yttrium enhanced copper core center electrode for reliability and performance.