Top 5 Delco Spark Plugs – Automotive Replacement Spark Plugs

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1. QuickSilver

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Quicksilver 898264001 AC Delco MR43T Spark Plug, 1-Pack

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QuickSilver #ad - Copper core provides great heat transfer and helps maximize plug durability. Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over†and misfires. Nickel-chrome alloy sheathing to help prevent corrosion on center electrode.
BrandQuickSilver #ad
ManufacturerACDelco #ad
Height2.9 Inches
Length5.9 Inches
Weight0.1 Pounds
Width4.7 Inches
Part Number898264001
Model898264001

2. ACDelco

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ACDelco R44LTS6 Professional Conventional Spark Plug Pack of 1

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ACDelco #ad - Black onyx coating helps reduce corrosion. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires. Available for use in Marine applications. Copper core provides great heat transfer and helps maximize plug durability.
BrandACDelco #ad
ManufacturerACDelco #ad
Height1.7 Inches
Length4.4 Inches
Weight0.02 Pounds
Width3.8 Inches
Part NumberR44LTS6
ModelR44LTS6
Warranty24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

3. ACDelco

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ACDelco Gold R45 Conventional Spark Plug

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ACDelco #ad - Black onyx coating helps reduce corrosion. Some acdelco gold parts may have formerly appeared as ACDelco Professional. Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires. Available for use in Marine applications. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. Copper core provides great heat transfer and helps maximize plug durability. Premium aftermarket replacement part. Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models.
BrandACDelco #ad
ManufacturerACDelco #ad
Height1.7 Inches
Length4.4 Inches
Weight0.1 Pounds
Width3.8 Inches
Part NumberR45
ModelR45
Warranty24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

4. ACDelco

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ACDelco 41-993 Professional Iridium Spark Plug Pack of 4

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ACDelco #ad - Iridium offers better engine idle stability and smoother performance. Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy. Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration. One piece suppressor seal blocks radio frequencies that can affect vehicle electronics. Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage.
BrandACDelco #ad
ManufacturerACDelco #ad
Weight0.8 Pounds
Part Number41-993
Model41-993
WarrantyFor warranty information about this product, please click here

5. ACDelco

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ACDelco -12680072 41-110 Professional Iridium Spark Plug Pack of 4

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ACDelco #ad - Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration. Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage. Iridium offers better engine idle stability and smoother performance. One piece suppressor seal blocks radio frequencies that can affect vehicle electronics. Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy.
BrandACDelco #ad
ManufacturerACDelco #ad
Height1 Inches
Length4.4 Inches
Weight0.4 Pounds
Width3.5 Inches
Part Number12680072
Model12680072
Warranty100,000 Miles / Unlimited Months (Parts Only)