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- Conventional Spark Plug
Part TypeSpark Plug
BrandACDELCO
Package Height1.0
Package Width1.1
Package Length3.6
Weight0.16 PG
Hex TypeHex
Gap Size (Mm)0.64
Ground ConfigurationStandard
Center Electrode Core MaterialCopper
Reach (Mm)12.57
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. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for 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 a ppeared as ACDelco Professional. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Center Electrode DesignStandard
Pack Of1
Width (In)3.59
Thread Diameter (Mm)14
Approximate Resistor Value2-20k ohms
Thread Diameter (In)0.55
Length (In)4.16
Insulator MaterialES703
Thread Size18mm
Part CategoryReplacement Parts
Gap Size0.025 in (0.635 mm)
Pre-Gap Size0.64
Ground Electrode Quantity1
Resistor PlugYes
Washer TypeCrush
Center Electrode Tip MaterialCopper
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 1Your engine having trouble starting, hesitating, or cutting out
Faq - Answer 8Yes, ACDelco has marine spark plugs for many applications.
Signs Of Wear &#38; 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.
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 3Yes. Diesel engines require glow plugs because diesel engines operate differently than gas engines. ACDelco Professional Glow Plugs are specially designed to give diesel engines the heat they need for their cold starts. Contact your local dealer, ACDelco service center, or refer the manufacture’s service information.
Faq - Answer 2Yes, if it is the scheduled time for spark plug replacement.
Hex Size (In)3/4
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 &#38; Benefits - Bullet 6Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Washer(S) IncludedYes
Seat TypeFlat
Insulator Height2.3
Ground Electrode Core MaterialNickel
Features &#38; Benefits - Bullet 2Copper core provides great heat transfer and helps maximize plug durability
Features &#38; Benefits - Bullet 3Available for use in Marine applications
Resistor TypeYes
Features &#38; Benefits - Bullet 4Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features &#38; Benefits - Bullet 5Premium aftermarket replacement part
Manufacturer Heat Range7
Features &#38; Benefits - Bullet 1Black Onyx coating helps reduce corrosion
Reach0.49
Ground Electrode Tip DesignStandard
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 6Chipped or broken insulator tips
Faq - Question 8Does ACDelco have marine spark plugs?
Faq - Question 7Can I just clean my spark plugs instead of replacing them?
Height (In)1.12
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 2Engine misfire
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 3Sluggish engine performance, loss of engine power, or decreased fuel economy
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 4Lack of acceleration or loss of speed when driving uphill under load
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 5Cracks in the upper or lower portion of the spark plug insulator
Part FitmentDirect Fit
Faq - Question 4Are ACDelco spark plugs pre-gapped?
Faq - Question 3Does a diesel engine require a different type of plug than a gas engine?
Weight (Lb)0.4
Faq - Question 2Should I change all of my vehicle's spark plugs at the same time?
Hex Size22.23 MM
Faq - Question 1Is there a recommended interval for changing my vehicle's spark plugs?
Vendor Part NumberC87
Package Qty1
Package TypeEA
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