ACDelco R42LTS Professional Conventional Spark Plug (Pack of 1)

ACDelco R42LTS Professional Conventional Spark Plug (Pack of 1)

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$2.99 Regular price ~~$5.99~~

Quick Overview From the manufacturer True GM Original Equipment and More ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into...

$2.99 Regular price ~~$5.99~~

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From the manufacturer

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True GM Original Equipment and More

ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into more than 90,000 GM OE and other parts.


Original Down To Our Blueprint ACDelco parts appear in more than 2 million GM vehicles each year, which makes us the only GM parts brand to offer the same Original Equipment parts shipped for GM vehicle production.	A Professional Choice ACDelco PROFESSIONAL parts are manufactured to meet expectations for fit, form and function, offering high quality and great value.	The ACDelco Advantage Our ADVANTAGE parts provide a competitively priced, yet quality alternative to unbranded aftermarket components.	It's Our Specialty ACDelco gold-label SPECIALTY parts are engineered to OE expectations for exceptional applications that require enhanced performance, including police vehicles.

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ACDelco Spark Plugs

When it comes to replacing your spark and glow plugs, ACDelco offers a full line of Professional premium aftermarket and Specialty spark and glow plug products. Whether you are choosing from our Iridium, Double Platinum, RAPIDFIRE Single Platinum, Conventional, Glow Plug, Marine, or Outdoor Power Equipment lines, you will know that you are getting a century’s worth of experience and know-how packed into that plug. ACDelco Professional premium aftermarket and Specialty spark and glow plugs fit both GM and non-GM vehicles.

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ACDelco Spark Plugs

Our most common Parts Warranty offers coverage on the majority of our Genuine GM Parts and ACDelco service replacement parts.

Effective on parts purchased April 1, 2018, and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.

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ACDelco Spark Plugs

Visually inspect spark plugs for signs of wear. Follow these steps for removing spark plugs for inspection, servicing or replacement:

Grasp the spark plug boot and gently rotate it 90 degrees counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use a spark plug boot removing tool. DO NOT grab or violently pull spark plug cables.

Brush or air blast dirt away from the well areas before removing spark plugs. CAUTION: Use goggles to protect eyes from debris when applying compressed air to spark plug wells.

Use the correct deep socket size to loosen each spark plug one or two turns. NOTE: To remove spark plugs from aluminum heads, allow the engine to cool. The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal.

Remove each spark plug and place each one in a tray by cylinder number. This will help identify and relate any unusual condition to the cylinder involved.

Apply dielectric grease into the boot area to reduce the chance of exterior tracking on the buttress tower of the spark plug. This grease also promotes a good heat transfer between the spark terminal screw and boot terminal.

Before installing new spark plugs, use a gap guide to make sure your new spark plugs have the correct gap. NOTE: ACDelco Professional Iridium Spark Plugs are pre-gapped during manufacturing. Never attempt to gap an ACDelco Professional Iridium Spark Plug. You could damage the spark plug. Replace any incorrectly gapped ACDelco Professional Iridium Spark Plugs with plugs that are correctly gapped.

Install spark plugs or glow plugs to the proper torque per the manufacturers’ specification.

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ACDelco Spark Plugs

Is there a recommended interval for changing my vehicle’s spark plugs?

Yes, 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.

Should I change all of my vehicle’s spark plugs at the same time?

Yes, 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.

Does a diesel engine require a different type of plug than a gas engine?

Yes. 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. Refer to your owner’s manual or contact your vehicle’s manufacturer for more information.

Are ACDelco spark plugs pre-gapped?

Yes. When ACDelco spark plugs are manufactured, they are pre-gapped to the correct gap specification.

When I replace my spark plugs, should I also replace my spark plug wires?

Not 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.

What is pre-ignition and can it damage my engine?

Yes, 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.

Can I just clean my spark plugs instead of replacing them?

No, 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.

Does ACDelco have marine spark plugs?

Yes, ACDelco has marine spark plugs for many applications.

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FAQ

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.