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- Conventional Spark Plug
Part TypeSpark Plug
BrandACDELCO
Package Height1.0
Package Width1.0
Package Length3.0
Weight0.145 PG
Part CategoryReplacement Parts
Gap Size (Mm)0.86
Pre-Gap Size0.86
Programming RequiredNo
Reach (Mm)19.05
Ground Electrode Quantity1
Approximate Resistor Value (K Ohms)2-20k ohms
Gap Size0.033 in (0.838 mm)
Ground ConfigurationStandard
Signs Of Wear & Troubleshooting - Section 1 - Bullet 1Your engine having trouble starting, hesitating, or cutting out
Center Electrode Core MaterialCopper
Faq - Answer 8Yes, ACDelco has marine spark plugs for many applications.
Ground Electrode Core MaterialNickel Alloy
Signs Of Wear & Troubleshooting - Section 1 - HeaderSigns of wear for spark plugs include but are not limited to:
Faq - Answer 7No, cleaning your old spark plugs is not recommended. Dirty, fouled spark plugs may also have broken or chipped insulator tips, worn electrodes, or worn or missing side wires. These conditions severely affect spark plug performance. Replace your dirty, fouled spark plugs with new ACDelco spark plugs.
Faq - Answer 6Yes, pre-ignition can cause serious damage to your engine. Pre-ignition is the ignition of fuel before the actual spark occurs, which causes a rapid temperature rise in the combustion chamber that can damage engine components and melt spark plug electrodes. Causes of pre-ignition include but are not limited to a buildup of deposits that can become incandescent in the combustion chamber, improper installation torque being applied to spark plugs, and having spark plugs with a heat range that is too hot for the engine's operating condition.
Hex Size0.813 in (20.65 mm)
Faq - Answer 5Not always, but you should inspect your spark plug wires for wear when replacing your spark plugs. Refer to your vehicle owner's manual or contact the manufacturer for more information.
Faq - Answer 4Yes. When ACDelco spark plugs are manufactured, they are pre-gapped to the correct gap specification.
Faq - Answer 3A No, diesel engines do not use spark plugs.
Faq - Answer 2Yes, if it is the scheduled time for spark plug replacement. It is okay to replace one spark plug if it is fouled or damaged prior to scheduled maintenance, provided the source of the damage is found and corrected.
Hex Size (In)13/16
Faq - Answer 1Yes, this interval depends on what type of spark plug your vehicle requires. Refer to your owner's manual or contact your vehicle's manufacturer for more information.
Features & Benefits - Bullet 6Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Seat TypeGasket
Center Electrode Tip MaterialNickel Alloy
Features & Benefits - Bullet 2Copper core provides great heat transfer and helps optimize plug durability
Features & Benefits - Bullet 3Available for use in Marine applications
Resistor TypeYes
Features & Benefits - Bullet 4Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features & Benefits - Bullet 5Premium aftermarket replacement part
Product DescriptionACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These conventional spark plugs are designed for reliability and efficient performance. They offer high-quality copper cores and outstanding suppression characteristics. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for GM fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Manufacturer Heat Range3
Features &#38; Benefits - Bullet 1Black Onyx coating helps reduce corrosion
Reach19.05
Ground Electrode Tip DesignStandard
Width (In)0.9
Thread SizeM14 - 1.25
Thread Diameter (Mm)14
Thread Diameter (In).55
Faq - Question 8Does ACDelco have marine spark plugs?
Faq - Question 7Can I just clean my spark plugs instead of replacing them?
Height (In)0.9
Faq - Question 6What is pre-ignition and can it damage my engine?
Faq - Question 5When I replace my spark plugs, should I also replace my spark plug wires?
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 2Lack of acceleration or loss of speed when driving uphill under load
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 3Cracks in the upper or lower portion of the spark plug insulator
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 4Chipped or broken insulator tips
Length (In)3.1
Faq - Question 4Are ACDelco spark plugs pre-gapped?
Faq - Question 3Do diesel engines use spark plugs?
Weight (Lb)0.4
Faq - Question 2Should I change all of my vehicle's spark plugs at the same time?
Faq - Question 1Is there a recommended interval for changing my vehicle's spark plugs?
Vendor Part NumberR43XL
Package Qty1
Package TypeEA
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