Audi A4 Spark Plug

Bosch
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.

Platinum+4

Fits the following 1997-2001 Audi A4 submodels:

• 1998-2001: Base; 6 Cyl 2.8L;
• 1998-1998: Avant; 6 Cyl 2.8L;

• 1997-1997: Base; 6 Cyl 2.8L; "AHA"

Fits 1 more submodels. (Show all) Show less info

DENSO Iridium Power® Spark Plug

DENSO Iridium Power® spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most grueling pressures and temperatures.

DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment.

This breakthrough was matched to one of DENSO's most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.
Features

• Tapered cut, U-Groove ground electrode
• 0.4mm iridium center electrode
• 360-degree laser welding assembly process

Benefits

• 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.

Warranty Information: 12 month - 12,000 mile limited warranty against defects in material and workmanship

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Iridium IK20

Fits the following 1997-2006 Audi A4 submodels:

• 2003-2006: Cabriolet; 4 Cyl 1.8L;
• 2004-2005: Avant; 4 Cyl 1.8L;

• 1997-2005: Base; 4 Cyl 1.8L;

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NGK BKR6EGP G-POWER PLATINUM SPARK PLUG, SOLD INDIVIDUALLY

NGK G-Power Spark Plug is a world class design that gives better fuel efficiency, lower emissions, and quicker starts.

Specifications:

• 14 mm thread size
• 19 mm reach
• 16 mm hex size
• Gasket seat style
• Resistor plug type
• Solid terminal nut
• JIS height
• Projected tip
• Platinum tipped center electrode
• Trapezoid beveled cut ground electrode
• Heat range 6

Features:

• Extremely durable under high heat
• Trivalent metal plating offers superior anti-corrosion and anti-seizing properties

Fits the following 1996-2004 Audi A4 submodels:

• 2004-2004: Avant; 6 Cyl 3.0L;
• 2003-2004: Cabriolet; 6 Cyl 3.0L;

• 2002-2004: Base; 6 Cyl 3.0L;

• 1996-2001: Base; 6 Cyl 2.8L;

• 1999-1999: Base; 4 Cyl 1.8L;

• 1997-1997: Base; 6 Cyl 2.8L; "AHA"

Fits 4 more submodels. (Show all) Show less info

AC DELCO RAPIDFIRE PERFORMANCE PLATINUM SPARK PLUG, SOLD INDIVIDUALLY

AC Delco Rapidfire Performance Platinum Spark Plugs offer longer life and improved efficiency over time. It fits engines that run conventional plugs, as well as newer vehicles that require platinum plugs.

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

Fits the following 1997-2004 Audi A4 submodels:

• 2004-2004: Cabriolet; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged"
• 2002-2004: Base; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2001-2001: Base; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged, VIN C"

• 2000-2001: Base; 6 Cyl 2.8L; "GAS, FI, ATQ, Naturally Aspirated, VIN H"

• 2000-2000: Base; 4 Cyl 1.8L; "GAS, FI, ATW, Turbocharged, VIN C"

• 1998-1999: Base; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN D"

• 1997-1999: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"

• 1998-1998: Avant; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN D"

• 1997-1997: Base; 6 Cyl 2.8L; "GAS, FI, AFC, Naturally Aspirated, VIN A"

• 1997-1997: Base; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN A"

Fits 8 more submodels. (Show all) Show less info

MOTORCRAFT SUPPRESSOR SPARK PLUG, FINEWIRE PLATINUM, SOLD INDIVIDUALLY

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

Fits the following 1996-2004 Audi A4 submodels:

• 2004-2004: Avant; 6 Cyl 3.0L;
• 2003-2004: Cabriolet; 6 Cyl 3.0L;

• 2002-2004: Base; 6 Cyl 3.0L;

• 1996-1996: Base; 6 Cyl 2.8L;

Fits 2 more submodels. (Show all) Show less info

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
• 19 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

Fits the following 2011-2012 Audi A4 submodels:

• 2011-2012: Base; 4 Cyl 2.0L; "FI"

ACCEL U-GROOVE PERFORMANCE SPARK PLUG -- 14 mm thread size, 0.750 in. reach, 5/8 in. wrench diameter, heat range 4; Resistor type, copper electrode core/tip material, projected insulator type, gasket seat style; Constructed with a five-rib, highly purified Alumina insulator that prevents arcing at plug boot and provides superior strength and thermal conductivity, a copper-glass seal that bonds insulator to electrode for a gas-tight seal, and a copper-core center electrode that comes with nickel chrome sheel for superior electrical conductivity and maximum heat dissipation; Its electric heat seal ensures stable heat range for uniform performance; The plug's machine rolled threads guarantee trouble free installation and removal, protecting the expensive cylinder heads; Features a unique U-groove ground electrode developed to meet the demand for improved ignitability and increased fuel combustion resulting in less flame dissipation; Gives the flame a groove to grow in that creates a larger flame front for a more complete combustion even in the case of lean air-fuel mixture; Produces greater firing energy without increasing spark plug gap and larger spark nucleus that stimulates faster combustion; Provides an increase in performance with improved throttle response, greater fuel efficiency and reduced emissions; With 90-day Accel limited warranty.

Fits the following 1996-1996 Audi A4 submodels:

• 1996-1996: All Submodels; All Engines;

CHAMPION SINGLE PLATINUM POWER PLUG, SOLD INDIVIDUALLY

Champion Single Platinum Power Plugs reduce and maintain gap growth and proper gap. The voltage needed to fire them remains consistent, reducing the chance of misfire.

Specifications:

• 14 mm thread diameter
• V-trimmed ground electrode
• Gasket seat
• Projected tip

Features:

• Center and side electrodes are tapered for performance while platinum tip on center electrode guarantees extended plug life

Fits the following 1996-2005 Audi A4 submodels:

• 2005-2005: Base; 6 Cyl 3.0L; "GAS, FI, BGN, Naturally Aspirated"
• 2005-2005: Cabriolet; 6 Cyl 3.0L; "GAS, FI, BGN, Naturally Aspirated"

• 2004-2005: Avant; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2003-2005: Cabriolet; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2002-2005: Base; 4 Cyl 1.8L; "GAS, FI, AMB, Turbocharged, VIN C"

• 2004-2004: Avant; 6 Cyl 3.0L; "GAS, FI, AVK, Naturally Aspirated, VIN T"

• 2003-2004: Cabriolet; 6 Cyl 3.0L; "GAS, FI, AVK, Naturally Aspirated, VIN T"

• 2002-2004: Base; 6 Cyl 3.0L; "GAS, FI, AVK, Naturally Aspirated, VIN T"

• 2001-2001: Base; 4 Cyl 1.8L; "GAS, FI, AWM, Turbocharged, VIN C"

• 2000-2001: Base; 6 Cyl 2.8L; "GAS, FI, ATQ, Naturally Aspirated, VIN H"

• 2000-2000: Base; 4 Cyl 1.8L; "GAS, FI, ATW, Turbocharged, VIN C"

• 1998-1999: Base; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN D"

• 1997-1999: Base; 4 Cyl 1.8L; "GAS, FI, AEB, Turbocharged, VIN B"

• 1998-1998: Avant; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN D"

• 1997-1997: Base; 6 Cyl 2.8L; "GAS, FI, AHA, Naturally Aspirated, VIN A"

• 1996-1997: Base; 6 Cyl 2.8L; "GAS, FI, AFC, Naturally Aspirated, VIN A"

Fits 14 more submodels. (Show all) Show less info

E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 19 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.

Fits the following 2002-2004 Audi A4 submodels:

• 2004-2004: Avant; 6 Cyl 3.0L;
• 2003-2004: Cabriolet; 6 Cyl 3.0L;

• 2002-2004: Base; 6 Cyl 3.0L;

Fits 1 more submodels. (Show all) Show less info