{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2009 Audi S8
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2009 Audi S8

2009 Audi S8 Spark Plugs

Refine by:

Shop Catalog

Showing 1 - 15 of 17 results
Display item:
15
30
45
Sort by:
Platinum Series Spark Plug, Sold individually
Autolite®
Platinum Series Spark Plug, Sold individually
Part Number: ALTAP3923
Guaranteed to Fit
$9.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Standard Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Nickel Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 4-year Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 0.75 in. ReachSeries : Platinum SeriesGap Size : 0.04 in.Thread Size : 14 mm
Iridium XP Series Spark Plug, Sold individually
Autolite®
Iridium XP Series Spark Plug, Sold individually
Part Number: ALTXP3923
Guaranteed to Fit
$14.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Fine Wire Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Platinum Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeElectrode Tip Material : Iridium Electrode TipQuantity Sold : Sold individuallyWarranty : Lifetime Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 0.75 in. ReachSeries : Iridium XP SeriesGap Size : 0.04 in.Thread Size : 14 mm
Iridium Long Life Series Spark Plug, Sold individually
Denso®
Iridium Long Life Series Spark Plug, Sold individually
Part Number: NP3471
Guaranteed to Fit
$21.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 5000 Resistance; 16 mm Hex Size; (3) Electrode Ground; Platinum Chip Ground Electrode Tip Design; Nickel Ground Electrode Core Material; Multi-Electrode Ground Configuration; Flat Seat TypeSpark Plug Code : SK20BR11Electrode Tip Material : Iridium Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachGap Size : 1.1 mmSeries : Iridium Long Life SeriesHeat Range : 20Thread Size : 14 mm
Laser platinum Series Spark Plug, Sold individually
NGK®
Laser platinum Series Spark Plug, Sold individually
Part Number: NG5547
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : Platinum ZUSpark Plug Code : PFR6WTGElectrode Tip Material : Platinum Electrode TipReplaces OE Number : 3471, 5547, 101905621A, K6RTJPPQuantity Sold : Sold individuallyWarranty : 60-day NGK limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachGap Size : 0.04 in.Recommended Use : OE ReplacementProduct Fit : Direct FitSeries : Laser platinum SeriesInterchange Part Number : 3471, 5547, 101905621A, K6RTJPPHeat Range : 6Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Sold individually
AC Delco®
Professional Conventional Series Spark Plug, Sold individually
Part Number: AC41-602
Guaranteed to Fit
$9.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L FI, DOHC, 40 Valve
Product Details
Notes : 5/8 in. hex size; Gasket seat styleElectrode Tip Material : Nickel alloy Electrode TipReplaces OE Number : 05614062, 05614285, 5614062, 5614285, FR1LSQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachGap Size : 0.035 in.Series : Professional Conventional SeriesHeat Range : 1Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Set of 10
AC Delco®
Professional Conventional Series Spark Plug, Set of 10
Part Number: SET-AC41-602-10
Guaranteed to Fit
$30.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L FI, DOHC, 40 Valve
Product Details
Electrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Set of 10Warranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachSeries : Professional Conventional SeriesGap Size : 0.035 in.Heat Range : 1Thread Size : 14 mm thread size
Iridium Power Series Spark Plug, Sold individually
Denso®
Iridium Power Series Spark Plug, Sold individually
Part Number: NP5304
Guaranteed to Fit
$14.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 5/8 in. hex size; Removable nut terminal type; Gasket seat style; ISO overall height; Machine rolled threads; 0.4 mm center electrode; Iridium power electrode configurationSpark Plug Code : IK20Quantity Sold : Sold individuallyWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachSeries : Iridium Power SeriesGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Iridium Power Series Spark Plug, Set of 10
Denso®
Iridium Power Series Spark Plug, Set of 10
Part Number: SET-NP5304-10
Guaranteed to Fit
$73.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Spark Plug Code : IK20Quantity Sold : Set of 10Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachSeries : Iridium Power SeriesGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
Iridium Power Series Spark Plug, Set of 12
Denso®
Iridium Power Series Spark Plug, Set of 12
Part Number: SET-NP5304-12
Guaranteed to Fit
$85.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Spark Plug Code : IK20Quantity Sold : Set of 12Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 19 mm ReachSeries : Iridium Power SeriesGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
RapidFire Performance Platinum Series Spark Plug, Sold individually
AC Delco®
RapidFire Performance Platinum Series Spark Plug, Sold individually
Part Number: AC18
Guaranteed to Fit
$11.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Spark Plug Code : 18Quantity Sold : Sold individuallyWarranty : 3 year, unlimited-mileage AC Delco warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : RapidFire Performance Platinum Series
RapidFire Performance Platinum Series Spark Plug, Set of 10
AC Delco®
RapidFire Performance Platinum Series Spark Plug, Set of 10
Part Number: SET-AC18-10
Guaranteed to Fit
$50.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Spark Plug Code : 18Quantity Sold : Set of 10Warranty : 3 year, unlimited-mileage AC Delco warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : RapidFire Performance Platinum Series
Iridium TT Series Spark Plug, Sold individually
Denso®
Iridium TT Series Spark Plug, Sold individually
Part Number: NP4702
Guaranteed to Fit
$14.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 16 mm Hex Size; (1) Ground Electrode; Flat Seat Type; Platinum Twin-Tip Ground Electrode Tip Design; Twin-Tip ConfigurationElectrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year or 12,000-mile Denso limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Nickel Copper Alloy Electrode CoreReach : 0.75 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementSeries : Iridium TT SeriesHeat Range : 20Thread Size : 0.55 in.
Iridium TT Series Spark Plug, Set of 10
Denso®
Iridium TT Series Spark Plug, Set of 10
Part Number: SET-NP4702-10
Guaranteed to Fit
$77.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Electrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Set of 10Warranty : 1-year or 12,000-mile Denso limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Nickel Copper Alloy Electrode CoreReach : 0.75 in. ReachSeries : Iridium TT SeriesGap Size : 0.04 in.Heat Range : 20Recommended Use : OE ReplacementThread Size : 0.55 in.
Iridium TT Series Spark Plug, Set of 12
Denso®
Iridium TT Series Spark Plug, Set of 12
Part Number: SET-NP4702-12
Guaranteed to Fit
$90.99
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Electrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Set of 12Warranty : 1-year or 12,000-mile Denso limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Nickel Copper Alloy Electrode CoreReach : 0.75 in. ReachSeries : Iridium TT SeriesGap Size : 0.04 in.Heat Range : 20Recommended Use : OE ReplacementThread Size : 0.55 in.
Platinum Series Spark Plug, Set of 10
Autolite®
Platinum Series Spark Plug, Set of 10
Part Number: SET-ALTAP3923-10
Guaranteed to Fit
$37.49
Vehicle Fitment
  • 2009 Audi S8 Base 10 Cyl 5.2L
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Standard Center Electrode Design; Mid Projection Tip Configuration; Stud Electrical Terminal Type; Nickel Ground Electrode Core Material; Tapered Ground Electrode Tip Design; Nickel Ground Electrode Tip Material; Ceramic Insulator Material; Flat Seat TypeComponents : (10) Spark PlugElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 10Warranty : 4-year Autolite limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material : Copper Electrode CoreReach : 0.75 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementProduct Fit : Direct FitSeries : Platinum SeriesThread Size : 14 mm
Page 1 of 2 | Showing 1 - 15 of 17 results

Top Rated Products

Autolite Platinum Series Spark Plug, Sold individually
$9.49( Review)
My car parts came in a timely fashion I have no complaints
Victoria W.
VERIFIED PURCHASER
Autolite Iridium XP Series Spark Plug, Sold individually
$14.49( Review)
Great quality the only issue with these is that u have to gap them instead of checkinSee More
Yasun A.
VERIFIED PURCHASER
AC Delco Professional Conventional Series Spark Plug, Sold individually
$9.99( Review)
It did everything that I needed it to do. Made a good replacement for the spark plugsSee More
Mackenzy R.
VERIFIED PURCHASER

Popular Products

Helpful Automotive Resources

A Short Course on Ignition Systems
A Short Course on Ignition SystemsLet’s see how this is done. The role of spark plugs is integral in the operation of the ignition systems as they ignite the air/fuel mixture—at exactly the right instant.
Why Won’t My Car Start?
Why Won’t My Car Start?Automotive professionals break down no-start situations into two separate categories: crank-no-start and no-crank-no-start.
P0354 Code: Ignition Coil “D” Primary/Secondary Circuit
P0354 Code: Ignition Coil “D” Primary/Secondary CircuitIn an engine with a COP ignition system, each cylinder comes with its own ignition coil that sits on top of the spark plug. The computer monitors the circuit between it and every ignition coil for faults. It will file a trouble code depending on the cylinder that experienced a
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.