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2004 GMC Sierra 2500 HD
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2004 GMC Sierra 2500 HD

2004 GMC Sierra 2500 HD Spark Plugs

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Platinum Series Spark Plug, Sold individually
Autolite®
Platinum Series Spark Plug, Sold individually
Part Number: ALTAP5245
Guaranteed to Fit
$9.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Standard Center Electrode Design; Long 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; Tapered 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 : 0.68 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
Professional Platinum Series Spark Plug, Sold individually
AC Delco®
Professional Platinum Series Spark Plug, Sold individually
Part Number: AC41-979
Guaranteed to Fit
$13.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L Gap .060
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L Gap .060
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L Gap .060
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L Gap .060
Product Details
Series : 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 CoreGap Size : OE Replacement
Iridium XP Series Spark Plug, Sold individually
Autolite®
Iridium XP Series Spark Plug, Sold individually
Part Number: ALTXP5245
Guaranteed to Fit
$5.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Notes : 4000 82 Resistance; 5/8 in. Hex Size; (1) Ground Electrode Quantity; Fine Wire Center Electrode Design; Long 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; Tapered 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 : 0.68 in. ReachGap Size : 0.04 in.Thread Size : 14 mm
Professional Conventional Series Spark Plug, Sold individually
AC Delco®
Professional Conventional Series Spark Plug, Sold individually
Part Number: ACR44LTSM
Guaranteed to Fit
$2.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L FI, CNG
Product Details
Notes : 5/8 in. hex size; Tapered seat styleSeries : Professional Conventional SeriesSpark Plug Code : R44LTSMElectrode Tip Material : Nickel alloy Electrode TipQuantity 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 : 17.55 mm ReachGap Size : 0.06 in.Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Set of 8
AC Delco®
Professional Conventional Series Spark Plug, Set of 8
Part Number: SET-ACR44LTSM-8
Guaranteed to Fit
$26.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L FI, CNG
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L FI, CNG
Product Details
Series : Professional Conventional SeriesSpark Plug Code : R44LTSMElectrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Set of 8Warranty : 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 : 17.55 mm ReachGap Size : 0.06 in.Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Sold individually
AC Delco®
Professional Conventional Series Spark Plug, Sold individually
Part Number: ACMR43LTS
Guaranteed to Fit
$2.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
Product Details
Notes : 0.67 in. Thread Reach; 16 mm Hex Size; 2500-12000 Ohms Resistance; (1) Ground Electrode; Nickel Ground Electrode Tip; Tapered Seat TypeSeries : Professional Conventional SeriesSpark Plug Code : MR43LTSElectrode Tip Material : Nickel alloy Electrode TipReplaces OE Number : 5614210, 19355201Quantity 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 : 18 mm ReachGap Size : 1.14 mmInterchange Part Number : 5614210, 19355201Heat Range : 3Thread Size : 14 mm thread size
Professional Conventional Series Spark Plug, Set of 8
AC Delco®
Professional Conventional Series Spark Plug, Set of 8
Part Number: SET-ACMR43LTS-8
Guaranteed to Fit
$26.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
Product Details
Series : Professional Conventional SeriesSpark Plug Code : MR43LTSElectrode Tip Material : Nickel alloy Electrode TipReplaces OE Number : 5614210, 19355201Quantity Sold : Set of 8Warranty : 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 : 18 mm ReachGap Size : 1.14 mmInterchange Part Number : 5614210, 19355201Heat Range : 3Thread 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: AC14
Guaranteed to Fit
$4.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Notes : 5/8 in. hex size; Tapered spark plug seat style; Nickel Alloy ground electrode core material; Single platinum electrode configurationSeries : RapidFire Performance Platinum SeriesSpark Plug Code : 14Electrode Tip Material : Platinum Electrode TipReplaces OE Number : 19308033Quantity 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.

Electrode Core Material : Copper Electrode CoreReach : 0.68 in. ReachGap Size : 0.062 in.Thread Size : 14 mm thread size
RapidFire Performance Platinum Series Spark Plug, Set of 8
AC Delco®
RapidFire Performance Platinum Series Spark Plug, Set of 8
Part Number: SET-AC14-8
Guaranteed to Fit
$38.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Series : RapidFire Performance Platinum SeriesSpark Plug Code : 14Electrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 8Warranty : 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.

Electrode Core Material : Copper Electrode CoreReach : 0.68 in. ReachGap Size : 0.062 in.Thread Size : 14 mm thread size
Platinum TT Series Spark Plug, Sold individually
Denso®
Platinum TT Series Spark Plug, Sold individually
Part Number: NP4511
Guaranteed to Fit
$11.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
Product Details
Notes : 5/8 in. hex size; Solid terminal type; Tapered seat style; Twin tip design; Titanium enhanced ground electrode; Machine rolled threadsSeries : Platinum TT SeriesSpark Plug Code : PT16TTElectrode Tip Material : Platinum 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 : 18 mm ReachGap Size : 1 mmHeat Range : 16Thread Size : 14 mm thread size
Platinum TT Series Spark Plug, Set of 8
Denso®
Platinum TT Series Spark Plug, Set of 8
Part Number: SET-NP4511-8
Guaranteed to Fit
$40.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Series : Platinum TT SeriesSpark Plug Code : PT16TTElectrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 8Warranty : 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 : 18 mm ReachGap Size : 1 mmHeat Range : 16Thread Size : 14 mm thread size
Platinum TT Series Spark Plug, Set of 10
Denso®
Platinum TT Series Spark Plug, Set of 10
Part Number: SET-NP4511-10
Guaranteed to Fit
$47.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
Product Details
Series : Platinum TT SeriesSpark Plug Code : PT16TTElectrode Tip Material : Platinum Electrode TipQuantity 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 : 18 mm ReachGap Size : 1 mmHeat Range : 16Thread Size : 14 mm thread size
Iridium TT Series Spark Plug, Sold individually
Denso®
Iridium TT Series Spark Plug, Sold individually
Part Number: NP4713
Guaranteed to Fit
$14.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
Product Details
Notes : 16 mm Hex Size; (1) Ground Electrode; Tapered Seat Type; Platinum Twin-Tip Ground Electrode Tip Design; Twin-Tip ConfigurationSeries : Iridium TT SeriesElectrode 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 : 0.71 in. ReachGap Size : 0.04 in.Recommended Use : OE ReplacementHeat Range : 16Thread Size : 0.55 in.
Iridium TT Series Spark Plug, Set of 8
Denso®
Iridium TT Series Spark Plug, Set of 8
Part Number: SET-NP4713-8
Guaranteed to Fit
$65.99
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
Product Details
Series : Iridium TT SeriesElectrode Tip Material : Iridium-Rhodium Alloy Electrode TipQuantity Sold : Set of 8Warranty : 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 : 0.71 in. ReachGap Size : 0.04 in.Heat Range : 16Recommended Use : OE ReplacementThread Size : 0.55 in.
Iridium TT Series Spark Plug, Set of 10
Denso®
Iridium TT Series Spark Plug, Set of 10
Part Number: SET-NP4713-10
Guaranteed to Fit
$79.49
Vehicle Fitment
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD Base 8 Cyl 8.1L
  • 2004 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD WT 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
  • 2004 GMC Sierra 2500 HD SLE 8 Cyl 8.1L
Product Details
Series : Iridium TT SeriesElectrode 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 : 0.71 in. ReachGap Size : 0.04 in.Heat Range : 16Recommended Use : OE ReplacementThread Size : 0.55 in.
Page 1 of 4 | Showing 1 - 15 of 54 results

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Product Questions & Answers

Denso Iridium TT Series Spark Plug, Set of 8
$65.99
Q:Gap size usa ?
Marc n.
A:BEST ANSWERHi Marc, I'm glad to assist you. As noted in the details below, these spark plugs have a gap size of 0.04 inches. Still, for us to check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, and engine size). The VIN would be helpful. Show less
Jeonino E.
 
1 Question, 1 AnswerView all Q&As >

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