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2021 GMC Yukon XL
2021 GMC Yukon XL Spark Plugs
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Part Number: NGLTR5IX11
Guaranteed to Fit
$13.49
Vehicle Fitment
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L
Product Details
Notes : 5000 Ohms Resistance; 53 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: 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.
Part Number: C339777
Guaranteed to Fit
$11.99
Vehicle Fitment
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
Product Details
Series : Champion Iridium SeriesQuantity Sold : Sold individuallyWarranty : 7-year, unlimited-mileage or recommended change interval Champion limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: NG90220
Guaranteed to Fit
$14.99
Vehicle Fitment
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L
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; Tapered Seat Type; Solid Terminal TypeSeries : Ruthenium HX SeriesElectrode Tip Material : Ruthenium Electrode TipReplaces OE Number : SP490, 90220, 41108, 12620540, AYFS22FM, 8125980040, L3Y218110Quantity Sold : Sold individuallyWarranty : 60-day NGK limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: AC41114
Guaranteed to Fit
$12.99
Vehicle Fitment
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L enginedesignationname: L87, Eng.VIN: L
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
Product Details
Notes : 0.98 in. Thread Reach; 14 mm Hex Size; 25.3 mm Insulator Height; 4000-7500 Ohms Resistance; (1) Ground Electrode; Iridium Ground Electrode Tip; Iridium Material Grade; Fine Wire Center Electrode Design; Conical Seat TypeSeries : Professional Iridium SeriesReplaces OE Number : 12622441Quantity Sold : Sold individuallyWarranty : 7-year or unlimited mile AC Delco warrantyProp 65 Warning :
WARNING: 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.
Part Number: SET-AC41114-8
Guaranteed to Fit
$68.99
Vehicle Fitment
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L enginedesignationname: L87, Eng.VIN: L
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L enginedesignationname: L84, Eng.VIN: D
Product Details
Series : Professional Iridium SeriesReplaces OE Number : 12622441Quantity Sold : Set of 8Warranty : 7-year or unlimited mile AC Delco warrantyProp 65 Warning :
WARNING: 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.
Part Number: SET-C339777-8
Guaranteed to Fit
$68.49
Vehicle Fitment
- 2021 GMC Yukon XL Denali 8 Cyl 6.2L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL SLT 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL AT4 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
- 2021 GMC Yukon XL SLE 8 Cyl 5.3L OE Type; Plug Type Res14Wmpb4
Product Details
Components : (8) Spark PlugSeries : Champion Iridium SeriesQuantity Sold : Set of 8Warranty : 7-year, unlimited-mileage or recommended change interval Champion limited warrantyProp 65 Warning :
WARNING: 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.
Page 1 of 1 | Showing 1 - 6 of 6 results
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AC DelcoProfessional Iridium Series Spark Plug, Sold individuallyManufacturer #41-114
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AC DELCO PROFESSIONAL IRIDIUM SPARK PLUG
Ignite your engine with the platinum build, precise fit and prolonged performance of AC Delco’s Professional Platinum Spark Plug. Established in 1899, AC Delco manufactures original GM parts and premium OE replace...
ChampionChampion Iridium Series Spark Plug, Sold individuallyManufacturer #9777
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CHAMPION SPARK PLUG
Enhance your vehicle's performance with the robust and reliable Champion Spark Plug.
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NGKIridium IX Series Spark Plug, Sold individuallyManufacturer #LTR5IX-11
( Reviews) Questions, Answers
NGK IRIDIUM IX SPARK PLUG
Designed for high-temperature engines and ideal for performance enthusiasts, NGK Iridium IX spark plug provides improved throttle response, high-ignitibility and superior anti-fouling. It delivers excellent durability, fuel effic...
Product Questions & Answers
Q:Are these pre-gaped ?
Ricardo R.
A:BEST ANSWERHi Ricardo, I'm glad to assist you. Yes. It is pre-gapped already (0.04 inches). If your car/truck appears in the vehicle fitment information below (upon selecting the year, make, model, submodel, and engine size), it is a guaranteed fit part. Grab our lowest price for a set and click the link below to buy it later. Happy shopping!
https://www.carparts.com/spark-plug/ac-delco/set-ac41114-8?can=cpje1043_CSQA_20240307 Show less
Jeonino E.
1 Question, 1 AnswerView all Q&As >
Q:Are these spark plugs pre gapped?
Gonzo
A:BEST ANSWERHi John, I'll be glad to assist you. Yes, the pre-gap is 0.04 inches. You can use the link below to order the part and take advantage of the limited stock available. Happy shopping!
https://www.carparts.com/spark-plug/ac-delco/ac41114?can=cpab2020_20220323 Show less
Andrew B.
1 Question, 1 AnswerView all Q&As >
Helpful Automotive Resources
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?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 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)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.