Audi A4 Spark Plugs
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NGK®Laser Iridium™ Spark PlugLaser Iridium™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Manufactured with both laser welded Iridium center electrode tip and a platinum disc welded to the...Laser welded Iridium center electrode tipPlatinum disc welded to backside of ground electrode provides long life$7.71 - $21.04 - Denso®Iridium TT™ Spark PlugIridium TT™ Spark Plug by Denso®. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you waste your time and gas running...Designed to replace your factory spark plugsManufactured to stringent quality standards$6.73 - $14.99
- NGK®HX™ Ruthenium Spark PlugHX™ Ruthenium Spark Plug by NGK®. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket NGK Ruthenium HX™. The ultimate high ignitability spark plugs from NGK. Modern...DFE & PSPE™ tip designsSuperior oxidation resistance$10.85 - $11.40
- Denso®Iridium Long-Life™ Spark PlugIridium Long-Life™ Spark Plug by Denso®. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement in ignitability...Manufactured to boost your engine’s performanceEngineered utilizing the finest materials and equipment$6.57 - $16.77
- TRQ®Spark Plug SetSpark Plug Set by TRQ®. This top-notch TRQ spark plug set is made to fix spark plug problems easily. With its help, you will restore your vehicle's quick starting. Plus, installing it is a simple task.Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$30.95 - $103.95Save: up to 6%$29.09 - $98.75
- NGK®Iridium IX™ Spark PlugIridium IX™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior...Fine Iridium tip ensures high durability and a consistently stable sparkIridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines$6.85 - $8.48
- NGK®Laser Platinum™ Spark PlugLaser Platinum™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Laser Iridium™ spark plugs provide superior ignitability and long service life. Smallest tip diameter...Laser welded Platinum center electrode tipPlatinum disc welded to backside of ground electrode provides long life$5.94 - $16.37
- Denso®Original U-Groove Spark PlugOriginal U-Groove Spark Plug by Denso®. Denso's patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the U shape. The ball of fire created in the U-Groove develops a larger and hotter...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$1.67 - $6.28
- Denso®Iridium Power™ Spark PlugIridium Power™ Spark Plug by Denso®. Iridium Power™ best demonstrates its performance improvement during acceleration. The world's smallest center electrode and specially shaped ground electrode delivers maximum spark energy while...OE quality parts from top original equipment and aftermarket manufacturerThe finest quality at a great price$6.31 - $39.41
- Champion®Copper Plus Spark PlugCopper Plus Spark Plug by Champion®. Built with nickel alloy center and ground electrodes, these spark plugs provide extra durability for long-lasting service life, while the extrusion of copper into the core of their center electrode...Dependable and durableBuilt to ISO and SAE standards for proven performance$1.23 - $33.55
- ACDelco®Gold Rapidfire Spark PlugsGold Rapidfire Spark Plugs by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.99 - $6.07Save: 15%$5.09 - $5.16
- ACDelco®GM Original Equipment™ Spark PlugsGM Original Equipment™ Spark Plugs by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.94 - $29.05Save: up to 17%$2.48 - $24.11
- Denso®Platinum TT™ Spark PlugPlatinum TT™ Spark Plug by Denso®. The Platinum TT™ concept originated from Denso's latest original equipment spark plug technology, the Super Ignition Plug (SIP). Until recently, this Titanium Enhanced Twin-Tip design could only be...Designed to replace your factory spark plugsManufactured to stringent quality standards$3.39 - $7.28
- Bosch®OE Specialty Nickel Spark PlugOE Specialty Nickel Spark Plug by Bosch®. Replace your worn out spark plugs with Bosch spark plugs and experience miles of worry-free driving. OE Specialty Spark Plugs ensure safe and reliable performance, same as your OE plugs, so you...Designed to meet or exceed OE specificationsMatch the fit, form, and function of the OE design$1.56 - $14.36
- ACDelco®Professional™ Spark PlugProfessional™ Spark Plug by ACDelco®. Designed for today’s most popular autos, as well as several marine applications, ACDelco’s Rapidfire® Platinum Spark Plugs fit engines using conventional plugs, as well as newer vehicles...Ribless insulator that improves the plug-to-boot sealTapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage$2.31 - $20.38Save: up to 17%$1.94 - $17.32
- Champion®Iridium Spark PlugIridium Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology, Champion spark plugs provide enhanced ignition and longer life.Iridium center electrodes and "laser-locked" platinum ground electrodes ensure maximum lifeFine-wire electrode and platinum V-trimmed ground electrode produce the sharpest spark focus$5.70 - $14.45
- Autolite®Iridium XP™ Spark PlugIridium XP™ Spark Plug by Autolite®. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking design, this product guarantees to deliver...Wise investment to get an efficient ignition system upgradeWill provide improved ignitability and engine performance$4.95 - $5.54
- DIY Solutions®Spark Plug SetSpark Plug Set by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to quality, reliability and...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$26.47 - $193.75
- Denso®Double Platinum™ Spark PlugDouble Platinum™ Spark Plug by Denso®. Denso Double Platinum plug features platinum on both the center and ground electrodes. This precious metal fights corrosion and erosion, ensuring superior spark performance and maximum spark plug...1.1 mm platinum center electrodeTitanium-enhanced alloy ground electrode$6.36 - $8.98
- ACDelco®GM Original Equipment™ Double Platinum Spark PlugGM Original Equipment™ Double Platinum Spark Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$9.41 - $9.77Save: 15%$8.01 - $8.30
- Champion®Platinum Power™ Spark PlugPlatinum Power™ Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology, Champion spark plugs provide enhanced ignition and longer life.Platinum center electrode reduces gap growth, lowering the voltage requirements, in turn reducing the chance of misfireThin center electrode and v-trimmed ground electrode enhance ignitability and reduce quenching$1.43 - $12.59
- NGK®Standard Nickel Spark PlugStandard Nickel Spark Plug by NGK®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$1.76 - $21.65
- Bosch®OE Specialty Platinum Spark PlugOE Specialty Platinum Spark Plug by Bosch®. Only Bosch uses a platinum center electrode that’s heat-fused into a ceramic insulator. All Bosch Platinum Series Spark Plugs reach self-cleaning temperature faster for quicker starts,...Manufactured to boost your engine’s performanceEngineered utilizing the finest materials and equipment$2.50 - $18.46
- ACDelco®Gold Double Platinum Spark PlugGold Double Platinum Spark Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.41 - $9.77Save: 15%$8.01 - $8.30
- E3®Spark PlugSpark Plug by E3®. For a more efficient and complete burn, go with the super sturdy plugs by E3. The advanced DiamondFire plug features a diamond-shaped electrode that ensures rapid and complete combustion, enabling power output and...Advanced DiamondFire electrode designProduces a faster burn$6.49 - $6.99
- Denso®Spark PlugSpark Plug by Denso®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better...Fully Projected Insulator Reduces Carbon FoulingMachine Rolled Threads Prevent Seizing or Cross Threading During Installation and Removal$2.60 - $24.13
- Bosch®OE Fine Wire Double Iridium Spark PlugOE Fine Wire Double Iridium Spark Plug by Bosch®. Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced OE spark plug technology. The ultra-fine wire design and laser...Double Iridium electrodes – iridium firing pin and iridium ground electrode inlay offer higher performanceOE Replacement: meets or exceeds manufacturer design requirements for modern gasoline engines to provide OE fit, form and function$6.17 - $17.42
- Bosch®Super Plus™ Spark PlugSuper Plus™ Spark Plug by Bosch®. Replace your worn out spark plugs with Bosch spark plugs and experience miles of worry-free driving. OE Specialty Spark Plugs ensure safe and reliable performance, same as your OE plugs, so you can...Designed to meet or exceed OE specificationsMatch the fit, form, and function of the OE design$1.40 - $32.76
- Champion®Double Platinum Spark PlugDouble Platinum Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology, Champion spark plugs provide enhanced ignition and longer life.Platinum Tipped Center Electrode and Platinum Pad on Ground Electrode Provides Long Life and Minimal WearTapered Electrodes Create a Sharper Spark Focus and Reduce Quenching$3.35 - $10.78
- SKP®Spark PlugSpark Plug by SKP®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better than...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$4.09 - $8.11
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Although the reliability of the Audi A4 can only be compared to its exquisite beauty, it is not uncommon for proud A4 owners to notice that all of a sudden their near-perfect vehicle started to consume more fuel, and its acceleration got slow. These problems are often caused by faulty spark plugs that either do not fire at all or produce sparks that are too weak to ignite the full volume of the mixture of fuel and air. Fortunately, spark plugs are easy to replace: it won’t take you a lot of time and effort to do it on your own.
When deciding on a spark plug to buy, bear in mind that plugs with electrode tips made of copper are usually cheaper, but have limited longevity and average reliability. Plugs that feature such metals as nickel, palladium and platinum are normally more expensive, but offer longer lifetimes and generate stronger sparks. The gap between the electrodes is extremely important for the performance of your vehicle: the wider the gap, the stronger the sparks produced by the plug. In our store, you will find a wide variety of Audi A4 spark plugs that were manufactured by renowned aftermarket companies : there is not a thing that we haven’t taken the utmost care of.
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