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1999 GMC Sierra 1500
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1999 GMC Sierra 1500

1999 GMC Sierra 1500 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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L
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
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L Gap .060
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L Gap .060
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L 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
Professional Platinum Series Spark Plug, Set of 6
AC Delco®
Professional Platinum Series Spark Plug, Set of 6
Part Number: SET-AC41-979-6
Guaranteed to Fit
$47.99
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L Gap .060
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L Gap .060
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L Gap .060
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 CoreGap Size : OE Replacement
Platinum Series Spark Plug, Sold individually
Autolite®
Platinum Series Spark Plug, Sold individually
Part Number: ALTAP605
Guaranteed to Fit
$2.99
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L
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; 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 : 0.06 in.Thread Size : 14 mm
Platinum Series Spark Plug, Sold individually
Bosch®
Platinum Series Spark Plug, Sold individually
Part Number: BS6703
Guaranteed to Fit
$3.99
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L
Product Details
Notes : 1.25 mm Thread Pitch; 16 mm Hex Size; Gasket Seat Type; Removable Nut Terminal Type; 0.6 mm Center Electrode Size; Fine Wire Type; Projected; (1) Standard; Taper-Cut Shape; With ResistorSeries : Platinum SeriesElectrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Sold individuallyWarranty : 1-year Bosch 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.

Promotions : European Vehicle PartsElectrode Core Material : Platinum Electrode CoreReach : 17.5 mm ReachGap Size : 1.5 mmHeat Range : 9Thread Size : 14 mm
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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L
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
Iridium XP Series Spark Plug, Sold individually
Autolite®
Iridium XP Series Spark Plug, Sold individually
Part Number: ALTXP605
Guaranteed to Fit
$5.99
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L
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; 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 : 0.06 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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L FI
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L FI
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L FI
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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L FI
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L FI
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L FI
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L FI
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: ACR44LTS6
Guaranteed to Fit
$8.49
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L FI
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L FI
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L FI
Product Details
Notes : 5/8 in. hex size; Tapered seat styleSeries : Professional Conventional SeriesSpark Plug Code : R44LTS6Electrode 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 6
AC Delco®
Professional Conventional Series Spark Plug, Set of 6
Part Number: SET-ACR44LTS6-6
Guaranteed to Fit
$22.49
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L FI
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L FI
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L FI
Product Details
Series : Professional Conventional SeriesSpark Plug Code : R44LTS6Electrode Tip Material : Nickel alloy Electrode TipQuantity Sold : Set of 6Warranty : 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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L
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
  • 1999 GMC Sierra 1500 SL 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 1999 GMC Sierra 1500 SLE 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SL 8 Cyl 4.8L
  • 1999 GMC Sierra 1500 SLT 8 Cyl 4.8L
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
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L
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 6
AC Delco®
RapidFire Performance Platinum Series Spark Plug, Set of 6
Part Number: SET-AC14-6
Guaranteed to Fit
$31.99
Vehicle Fitment
  • 1999 GMC Sierra 1500 SLE 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SL 6 Cyl 4.3L
  • 1999 GMC Sierra 1500 SLT 6 Cyl 4.3L
Product Details
Series : RapidFire Performance Platinum SeriesSpark Plug Code : 14Electrode Tip Material : Platinum Electrode TipQuantity Sold : Set of 6Warranty : 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
Page 1 of 5 | Showing 1 - 15 of 72 results

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AC Delco Professional Conventional Series Spark Plug, Set of 8
$26.99
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Mike T.
A:BEST ANSWERHi Mike, I'm glad to assist you. Yes, they will. Click on the link below for direct ordering to take advantage of our limited stocks. I hope this helps, and happy shopping. https://www.carparts.com/spark-plug/ac-delco/set-acmr43lts-8?can=CPAE1047_CSQA_20230903 Show less
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AC Delco RapidFire Performance Platinum Series Spark Plug, Set of 6
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Q:What number champion plug goes into this 1990 Buick LeSabre 3.8 motor ? Show Less
Joe C.
A:BEST ANSWERHi Joseph, I'm glad to assist you. We do not have a brand Champion. This AC Delco brand is our best buy since it has a 3-year, unlimited-mileage AC Delco warranty. You get the set for only $28.49. Grab our best seller for a quality spark plug, and click the link below to buy it today. Happy shopping! https://www.carparts.com/spark-plug/ac-delco/set-ac14-6?can=cpje1043_CSQA_20240726 Show less
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