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Infiniti FX45 Spark Plug

We have 6 Items In-stock. Select a year to continue.
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Infiniti FX45 Spark Plug, NGK Iridium IX Spark Plug - Direct Fit

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$9.82 $11.59 You Save $1.77 (15%)
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NGK LFR5AIX-11 IRIDIUM IX SPARK PLUG, SOLD INDIVIDUALLY

NGK Iridium IX Spark Plug improves throttle response and superior anti fouling that deliver an outstanding acceleration, high fuel efficiency and durability with its ultimate design, technology and performance.

Specifications:
  • 14 mm thread size
  • 26.5 mm reach
  • 16 mm hex size
  • Gasket seat style
  • Resistor plug type
  • Solid terminal nut
  • Projected tip
  • Fine wire 0.6 mm iridium center electrode
  • Tapered cut ground electrode
  • One ground strap quantity
  • Heat range 5

Features:
  • Iridium alloy has extremely high melting point making it perfect for today's high-tech and high performance engines
  • Fine Iridium tip that ensures high durability and a consistently stable spark
  • Trivalent metal plating offers superior anti-corrosion and anti-seizing properties


  • Brand SKU#: NGK 4469
  • Series: NGK Iridium IX
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Iridium
  • Gap Size: 1.1 mm
  • Notes: Ships to U.S. addresses only. Cannot be shipped internationally.
  • Reach: 26.5 mm
  • Thread Size: 14 mm
  • Warranty: 60-day NGK limited warranty
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Fits the following Infiniti FX45 Years

  • 2003-2008 | Base | 8 Cyl 4.5L
Customer Review: (see review/s)

Infiniti FX45 Spark Plug, Denso Platinum TT Spark Plug - Direct Fit

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$5.76 $6.80 You Save $1.04 (15%)
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Denso Platinum TT OE Replacement Spark Plug

Denso is the world's leading provider of high quality automotive merchandises which are engineered from the modernized facilities and equipments. Denso's proficiencies with their products are better than rivals as they initially built them along with their strict and valued standards.

Denso Platinum Twin Tip Spark Plugs features revolutionary twin tip design that provides better ignitability for a more powerful and fuel-efficient combustion yielding better engine performance in terms of power and fuel economy.

Features:

  • Improves mileage and reduces carbon emissions
  • Provides additional power and quicker starts

Item Details:

  • .63 in. hex size
  • Platinum alloy 1.1 mm fine wire center electrode
  • Titanium enhanced 1.5 mm fine wire ground electrode
  • Gasket seat style
  • Solid terminal nut
  • Brand SKU#: Denso PKH16TT
  • Series: Denso Platinum TT
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Gap Size: 1.1 mm
  • Heat Range: 16
  • Reach: 26.5 mm
  • Thread Size: 14 mm
  • Warranty: 1 year Denso limited warranty
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Fits the following Infiniti FX45 Years

  • 2003-2008 | Base | 8 Cyl 4.5L

Infiniti FX45 Spark Plug, Bosch Platinum+4 Spark Plug - Direct Fit

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$15.27 $18.02 You Save $2.75 (15%)
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BOSCH PREMIUM CLASS PLATINUM+4 SPARK PLUG

Bosch Premium Class Platinum+4 Spark Plug contains the most platinum in the Bosch Platinum Plug Series and has a unique firing technology that combines the advantages of surface air gap technology and 4 yttrium enhanced ground electrodes.

Specifications:
  • 14 mm thread size
  • 26.5 mm reach
  • 16 mm hex size
  • Platinum plug
  • Gasket seat style
  • Interference suppression resistor
  • Surface air gap plug
  • Heat fused platinum center electrode
  • 4 ground electrodes
  • Heat range 8

Features:
  • Reduces the voltage necessary to jump the gap as well as quenching
  • Provides multiple radial spark paths and surface air gap design that creates optimal exposure of the air/fuel mixture to the enhanced ignition spark
  • Yttrium-enhancement of the ground electrodes further extend plug life
  • Designed to reach self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency
  • Brand SKU#: Bosch 4431
  • Series: Bosch Platinum+4
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Reach: 26.5 mm
  • Thread Size: 14 mm
  • Warranty: 1 year or 12,000-mile Bosch limited warranty
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Fits the following Infiniti FX45 Years

  • 2003-2008 | Base | 8 Cyl 4.5L

Infiniti FX45 Spark Plug, AC Delco Professional Platinum Spark Plug - Direct Fit

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$8.27 $9.76 You Save $1.49 (15%)
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AC DELCO PROFESSIONAL PLATINUM SPARK PLUG, SOLD INDIVIDUALLY

AC Delco Professional Platinum Spark Plugs are perfect for engines that run on conventional plugs, and newer engines that require platinum plugs. Provides up to 100,000 miles of service before requiring replacement.

Features:
  • Constructed from top quality materials to help the engine run clean and longer
  • Copper core center electrode for improved heat transfer to the tip
  • Engineered to high standards and tested under extreme conditions to exceed OE specifications


  • Brand SKU#: AC Delco 41-835
  • Series: AC Delco Professional Platinum
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Warranty: 100,000-mile AC Delco limited warranty
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Fits the following Infiniti FX45 Years

  • 2003-2008 | Base | 8 Cyl 4.5L

Infiniti FX45 Spark Plug, Pulstar Iridium Pulse Spark Plug - Direct Fit

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$14.95 $17.64 You Save $2.69 (15%)
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Availability: In Stock
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PULSTAR IRIDIUM PULSE SPARK PLUG, SOLD INDIVIDUALLY

Pulstar Pulse Spark Plug contains integrated electrical capacitor that focuses on the energy of the plug. Its electrical energy delivers the fuel mixture far beyond the typical conventional spark plugs and produces not only better fuel efficiency, but also increased torque and horsepower.

Specifications:
  • 14 mm thread size
  • 26.5 mm reach
  • 16 mm hex size
  • 1.14 mm gap
  • 0.5 mm fine-wire iridium tipped center electrode with copper core
  • Gasket seat
  • Resistor
  • Nickel alloy ground electrode

Features:
  • Latest in performance ignition technology
  • Provides up to 12 percent more horsepower and torque plus livelier throttle response than conventional spark plugs
  • Allows more efficient burning of fuel and generates a much larger spark at twice the speed than ordinary spark plugs
  • Promotes an increased gas mileage and greater horsepower to the wheels
  • Reduces carbon dioxide emissions and provides cleaner exhaust and more efficient combustion
  • Uses an internal circuit that delivers up to 1,000,000 watts of peak power that increases peak spark current by up to 20,000 times that of a traditional spark plug


  • Brand SKU#: Pulstar DG1H10
  • Series: Pulstar Iridium Pulse
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Iridium
  • Gap Size: 1.14 mm
  • Reach: 26.5 mm
  • Thread Size: 14 mm
  • Warranty: Lifetime Pulstar limited warranty
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Fits the following Infiniti FX45 Years

  • 2004-2008 | Base | 8 Cyl 4.5L

Infiniti FX45 Spark Plug, E3 DiamondFire Spark Plug - Direct Fit

Best Seller
$5.95 $8.99 You Save $3.04 (34%)
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Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 25.4 mm reach, 0.62 in. hex size, gasket seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel alloy electrode tip material, projected insulator type; Guaranteed to provide more power while using less fuel, quicker starts and less fouling than competitive standard spark plugs.
  • Brand SKU#: E3 E3.68
  • Series: E3 DiamondFire
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Product Class: Fuel Saver
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Reach: 25.4 mm
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
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Fits the following Infiniti FX45 Years

  • 2003-2008 | Base | 8 Cyl 4.5L

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