{
    "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
}
0
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Select your vehicle

Lexus RX350 Spark Plugs

Refine by:
See All

Shop Catalog

Showing 1 - 15 of 29 results
Display item:
15
30
45
Sort by:
12-Piece Kit Ignition Coil with Spark Plugs, 6 Cylinder, 2.5/3.0/3.5/4.0L Engines
DriveWire
12-Piece Kit Ignition Coil with Spark Plugs, 6 Cylinder, 2.5/3.0/3.5/4.0L Engines
Part Number: KIT-052523-16
Vehicle Info Required to Guarantee Fit
$114.99
Product Details
Components : (6) Ignition Coil and (6) Spark PlugRecommended Use : OE ReplacementProduct Fit : Direct FitReplaces OE Number : 5052, 48726, 50099, 230480, 230525, 250099, 368111, 521894, 522092, 1788311, 1788491, 6731309, 9212089, 9212122, 92120896, 92192089, 92840876, 2505307329, 9091902251, 9091902255, 9191902251, 72951034800, 1IC130, 26C1034, 4T9, 5C1653, 5C1658, 5C1737, 90919A2002, 90919A2004, 90919A2005, 90919A2007, 90919A2013, 90919C2001, 90919C2004, 90919T2004, C1596, C1596VC, C1601, C16016, C1601DLGKIT, C1601SPEC, C1601VC, C1680, C701, CUF487, E987, EBC1039, EBC1214, EBC1832, GN10366, IC567, IC567SB, IGC0176Interchange Part Number : UF487, 5052, 48726, 50099, 230480, 230525, 250099, 368111, 521894, 522092, 1788311, 1788491, 6731309, 9212089, 9212122, 92120896, 92192089, 92840876, 2505307329, 9091902251, 9091902255, 9191902251, 72951034800, 1IC130, 26C1034, 4T9, 5C1653, 5C1658, 5C1737, 90919A2002, 90919A2004, 90919A2005, 90919A2007, 90919A2013, 90919C2001, 90919C2004, 90919T2004, C1596, C1596VC, C1601, C16016, C1601DLGKIT, C1601SPEC, C1601VC, C1680, C701, CUF487, E987, EBC1039, EBC1214, EBC1832, GN10366, IC567, IC567SBWarranty : 1-year DriveWire unlimited-mileage warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Quantity Sold : Kit
AP5325 Platinum Series Spark Plug, Sold individually
Autolite®
AP5325 Platinum Series Spark Plug, Sold individually
Part Number: ALTAP5325
Vehicle Info Required to Guarantee Fit
$9.99
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 TypeSeries : Platinum SeriesElectrode 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 : 1 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
94122 Ruthenium HX Series Spark Plug, Sold individually
NGK®
94122 Ruthenium HX Series Spark Plug, Sold individually
Part Number: NG94122
Vehicle Info Required to Guarantee Fit
$18.99
Product Details
Notes : 1.25 mm Thread Pitch; 16 mm Hex Size; 0.6 mm Projected Fine Wire Ruthenium Center Electrode; 5000 Ohms Resistance; (1) Fine Wire Platinum Ground Electrode; Gasket Seat Type; Solid Terminal TypeSeries : Ruthenium HX SeriesElectrode Tip Material : Ruthenium Electrode TipReplaces OE Number : 94122, 12120035915, 9091901235, 12290RBJ003, 22401AA580, 31312691, A132E6281SQuantity 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 : 26.5 mm ReachGap Size : 0.04 in.Interchange Part Number : 94122, 12120035915, 9091901235, 12290RBJ003, 22401AA580, 31312691, A132E6281SHeat Range : 6Thread Size : 14 mm thread size
SET-NG94122-6 Ruthenium HX Series Spark Plug, Set of 6
NGK®
SET-NG94122-6 Ruthenium HX Series Spark Plug, Set of 6
Part Number: SET-NG94122-6
Vehicle Info Required to Guarantee Fit
$68.49
Product Details
Series : Ruthenium HX SeriesElectrode Tip Material : Ruthenium Electrode TipReplaces OE Number : 94122, 12120035915, 9091901235, 12290RBJ003, 22401AA580, 31312691, A132E6281SQuantity Sold : Set of 6Warranty : 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 : 26.5 mm ReachGap Size : 0.04 in.Interchange Part Number : 94122, 12120035915, 9091901235, 12290RBJ003, 22401AA580, 31312691, A132E6281SHeat Range : 6Thread Size : 14 mm thread size
5344 Iridium Power Series Spark Plug, Sold individually
Denso®
5344 Iridium Power Series Spark Plug, Sold individually
Part Number: NP5344
Vehicle Info Required to Guarantee Fit
$14.99
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 configurationSeries : Iridium Power SeriesSpark Plug Code : IFR6D10Replaces OE Number : IKH20Quantity 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 : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
SET-NP5344-6 Iridium Power Series Spark Plug, Set of 6
Denso®
SET-NP5344-6 Iridium Power Series Spark Plug, Set of 6
Part Number: SET-NP5344-6
Vehicle Info Required to Guarantee Fit
$51.99
Product Details
Series : Iridium Power SeriesSpark Plug Code : IFR6D10Quantity Sold : Set of 6Warranty : 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 : 26.5 mm ReachGap Size : 1.1 mmHeat Range : 20Thread Size : 14 mm thread size
XP5325 Iridium XP Series Spark Plug, Sold individually
Autolite®
XP5325 Iridium XP Series Spark Plug, Sold individually
Part Number: ALTXP5325
Vehicle Info Required to Guarantee Fit
$13.99
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 TypeSeries : Iridium XP SeriesElectrode 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 : 1 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
4506 Platinum TT Series Spark Plug, Sold individually
Denso®
4506 Platinum TT Series Spark Plug, Sold individually
Part Number: NP4506
Vehicle Info Required to Guarantee Fit
$13.49
Product Details
Notes : 16 mm Hex Size; (1) Ground Electrode; Flat Seat Type; Titanium Enhanced Twin-Tip Ground Electrode Tip Design; Twin-Tip ConfigurationSeries : Platinum TT SeriesElectrode Tip Material : Platinum 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 : 1.04 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementHeat Range : 20Thread Size : 0.55 in.
SET-NP4506-6 Platinum TT Series Spark Plug, Set of 6
Denso®
SET-NP4506-6 Platinum TT Series Spark Plug, Set of 6
Part Number: SET-NP4506-6
Vehicle Info Required to Guarantee Fit
$43.99
Product Details
Series : Platinum TT SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 6Warranty : 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 : 1.04 in. ReachGap Size : 0.04 in.Heat Range : 20Recommended Use : OE ReplacementThread Size : 0.55 in.
LFR6AIX-11 Iridium IX Series Spark Plug, Sold individually
NGK®
LFR6AIX-11 Iridium IX Series Spark Plug, Sold individually
Part Number: NGLFR6AIX11
Vehicle Info Required to Guarantee Fit
$13.99
Product Details
Notes : 5000 Ohms Resistance; 50.5 mm Insulator Height; 5/8 in. Hex Size; (1) Standard Ground Electrode; Nickel Core Ground Electrode Material; Taper Cut Core Design; Flat Seat; Non-Removable Nut Terminal TypeSeries : Iridium IX SeriesElectrode Tip Material : Iridium Electrode TipQuantity 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 : 26.5 mm ReachGap Size : 0.04 in.Heat Range : 6Thread Size : 14 mm
SET-NGLFR6AIX11-6 Iridium IX Series Spark Plug, Set of 6
NGK®
SET-NGLFR6AIX11-6 Iridium IX Series Spark Plug, Set of 6
Part Number: SET-NGLFR6AIX11-6
Vehicle Info Required to Guarantee Fit
$58.49
Product Details
Series : Iridium IX SeriesElectrode Tip Material : Iridium Electrode TipQuantity Sold : Set of 6Warranty : 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 : 26.5 mm ReachGap Size : 0.04 in.Heat Range : 6Thread Size : 14 mm
41-801 Professional Platinum Series Spark Plug, Sold individually
AC Delco®
41-801 Professional Platinum Series Spark Plug, Sold individually
Part Number: AC41-801
Vehicle Info Required to Guarantee Fit
$14.49
Product Details
Notes : Requires 2 plugs per cylinderSeries : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Sold individuallyWarranty : 7-year or unlimited mile 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.

Electrode Core Material : Copper Electrode CoreReach : 0.75 in. ReachGap Size : OE ReplacementHeat Range : 10Thread Size : 0.551 mm thread size
SET-AC41-801-6 Professional Platinum Series Spark Plug, Set of 6
AC Delco®
SET-AC41-801-6 Professional Platinum Series Spark Plug, Set of 6
Part Number: SET-AC41-801-6
Vehicle Info Required to Guarantee Fit
$48.49
Product Details
Series : Professional Platinum SeriesElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 6Warranty : 7-year or unlimited mile 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.

Electrode Core Material : Copper Electrode CoreReach : 0.75 in. ReachGap Size : OE ReplacementHeat Range : 10Thread Size : 0.551 mm thread size
3491 Iridium Long Life Series Spark Plug, Sold individually
Denso®
3491 Iridium Long Life Series Spark Plug, Sold individually
Part Number: NP3491
Vehicle Info Required to Guarantee Fit
$22.99
Product Details
Series : Iridium Long Life SeriesSpark Plug Code : FK20HBR8Electrode Tip Material : Iridium-Rhodium Alloy 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 Core
SET-NP3491-6 Iridium Long Life Series Spark Plug, Set of 6
Denso®
SET-NP3491-6 Iridium Long Life Series Spark Plug, Set of 6
Part Number: SET-NP3491-6
Vehicle Info Required to Guarantee Fit
$93.99
Product Details
Series : Iridium Long Life SeriesSpark Plug Code : FK20HBR8Electrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Set of 6Warranty : 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 Core
Page 1 of 2 | Showing 1 - 15 of 29 results

Top Rated Products

DriveWire 12-Piece Kit Ignition Coil with Spark Plugs, 6 Cylinder, 2.5/3.0/3.5/4.0L Engines
$114.99( Review)
Very satisfied
Jimmy A.
VERIFIED PURCHASER
Denso SET-NP5344-6 Iridium Power Series Spark Plug, Set of 6
$51.99( Review)
The plugs work perfectly
Gary T.
VERIFIED PURCHASER

Product Questions & Answers

Denso SET-NP3491-6 Iridium Long Life Series Spark Plug, Set of 6
$93.99
Q:what is recommended life of these plugs?
Jim W.
A:BEST ANSWERHi Jim, thanks for initiating contact. According to the search results, these Iridium plugs have a recommended service life of up to 100,000 miles which is about 3 times longer than conventional spark plugs. Their iridium and platinum construction allows them to withstand extreme conditions for extended periods. If your vehicle information matches this product, use the link below to order while the part is in stock. Your order will come with a 30-day post-purchase price match guarantee. Enjoy shopping! https://www.carparts.com/spark-plug/denso/set-np3491-6?can=CPGG4850_CSQA_20240712 Show less
Grace G.
 
1 Question, 1 AnswerView all Q&As >