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Audi A8 Spark Plug

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Audi A8 Spark Plug, Denso Platinum TT Spark Plug - Direct Fit

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$4.47 $5.27 You Save $0.80 (15%)
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DENSO PREMIUM CLASS PLATINUM TWIN TIP SPARK PLUG

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

Specification:
  • 14 mm thread size
  • 18 mm reach
  • 0.63 in. hex size
  • 0.04 in. gap size
  • Tapered seat style
  • Resistor plug type
  • Platinum alloy 1.1 mm fine wire center electrode
  • Titanium enhanced 1.5 mm fine wire ground electrode
  • Solid terminal nut
  • Heat range 20

Features:
  • Greatly improves mileage
  • Provides more power and faster starts
  • Reduce carbon emissions


  • Sku#: NP4512
  • Brand: Denso
  • Series: Denso Platinum TT
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Electrode Tip Material: Platinum
  • Gap Size: 1.02 mm
  • Reach: 18 mm
  • Thread Size: 14 mm
  • Anticipated Ship Out Time: 1-2 Business Days
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Fits the following Audi A8 Years

  • 1997-1999 | Base | 8 Cyl 3.7L

Audi A8 Spark Plug, Bosch Super Spark Plug - Direct Fit

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$14.03 $16.56 You Save $2.53 (15%)
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BOSCH REGULAR CLASS PLATINUM MULTI-GROUND SPARK PLUG

Bosch Regular Class Platinum Multi-Ground Spark Plug provides multiple radial spark paths and surface air gap design that creates optimal plug life.

Specifications:
  • 14 mm thread size
  • 17.55 mm reach
  • 16 mm hex size
  • Tapered seat style
  • Interference suppression resistor
  • Surface air gap plug
  • Copper core center electrode
  • 4 ground electrodes
  • Heat range 7

Features:
  • Unique firing technology that combines the advantage of surface air gap technology and yttrium enhanced ground electrodes


  • Sku#: BS7411
  • Brand: Bosch
  • Series: Bosch Super
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Reach: 17.55 mm
  • Thread Size: 14 mm
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 1 year or 12,000-mile Bosch limited warranty
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Fits the following Audi A8 Years

  • 1997-1999 | Base | 8 Cyl 3.7L

Audi A8 Spark Plug, AC Delco RapidFire Performance Platinum Spark Plug - Direct Fit

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$5.94 $7.01 You Save $1.07 (15%)
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AC DELCO SPARK PLUG ASSEMBLY, SOLD INDIVIDUALLY -- Constructed from top quality materials to help the engine run clean and longer; Features a copper-core center electrode for improved heat transfer to the tip; Hot-tip insulators heats fast and fires hot to promote longer electrode life for miles of dependable performance; Nickel-chrome alloy sheathing on the ground and center electrodes offers maximum resistance against wear from spark erosion and the corrosive environment of the combustion chamber; Engineered to high standards and tested under extreme conditions to exceed OE specifications; Replaces OE number 25171347.
  • Sku#: AC8
  • Brand: AC Delco
  • Series: AC Delco RapidFire Performance Platinum
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Electrode Tip Material: Platinum
  • Gap Size: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 100,000-mile AC Delco limited warranty
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Fits the following Audi A8 Years

  • 1997-1999 | Base | 8 Cyl 3.7L

Audi A8 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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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
  • 18 mm reach
  • 16 mm hex size
  • 1.14 mm gap
  • 0.5 mm fine-wire iridium tipped center electrode with copper core
  • Tapered 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


  • Sku#: PSTRAD1H10
  • Brand: Pulstar
  • Series: Pulstar Iridium Pulse
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Electrode Tip Material: Iridium
  • Gap Size: 1.14 mm
  • Reach: 18 mm
  • Thread Size: 14 mm
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Lifetime Pulstar limited warranty
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Fits the following Audi A8 Years

  • 1997-1999 | Base | 8 Cyl 3.7L

Audi A8 Spark Plug, Motorcraft Suppressor Spark Plug - Direct Fit

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$8.39 $9.90 You Save $1.51 (15%)
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MOTORCRAFT SUPPRESSOR SPARK PLUG, FINEWIRE PLATINUM, SOLD INDIVIDUALLY

0.05 in. gap size, standard service plug; Delivers maximum voltage to the spark plug while maximizing performance and increases engine life; Resists corrosion and abrasion; Reduces the chance of misfire.


  • Sku#: MISP500
  • Brand: Motorcraft
  • Series: Motorcraft Suppressor
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Electrode Tip Material: Platinum
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 1 year or 12,000-mile Motorcraft limited warranty
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Fits the following Audi A8 Years

  • 1999 | Base | 8 Cyl 3.7L

Audi A8 Spark Plug, Champion Double Platinum Spark Plug - Direct Fit

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$7.70 $9.09 You Save $1.39 (15%)
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CHAMPION DOUBLE PLATINUM SPARK PLUG, SOLD INDIVIDUALLY

Champion Double Platinum Power Spark Plugs use a fine-wire and V-trimmed center electrode to create a sharper spark focus than conventional plugs. With their exclusive Heat-Active alloy, they are designed to reach operating temperatures quickly and maintain stable temperatures under varying engine loads. It is widely designed for distributorless ignition systems, these Champion Double Platinum Power spark plugs can maximize fuel efficiency and spark energy.

Specifications:
  • 14 mm thread diameter
  • platinum tipped ground electrode
  • platinum tipped center electrode
  • Projected core nose
  • Heat range 12

Features:
  • Platinum tipped for superior erosion resistance and spark for better performance
  • Engineered with triple sealed interior and copper core to reduce failure from heat and stress


  • Sku#: C337963
  • Brand: Champion
  • Series: Champion Double Platinum
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Electrode Tip Material: Platinum
  • Reach: 14 mm
  • Thread Size: 18 mm
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 1-year Champion limited warranty
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Fits the following Audi A8 Years

  • 1997-1999 | Base | 8 Cyl 3.7L

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