0) SPARK PLUGS
Item #:
83886091
Product Info
41-908
ACDELCO
0) SPARK PLUGS
ACDelco 41-908 Double Platinum Spark Plug
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 GM OE Iridium Spark Plugs are pre-gapped during manufacturing. Never attempt to gap an ACDelco GM OE Iridium Spark Plug. You could damage the spark plug. Replace any incorrectly gapped ACDelco GM OE Iridium Spark Plugs with plugs that are correctly gapped.Install spark plugs or glow plugs to the proper torque per the manufacturers' specification.- One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
- Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
- Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
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SPARK PLUGS
| Package Quantity | 1 |
| UPC | 707773565261 |
| ACDelco Market Indicator CA - L0 | Y |
| ACDelco Market Indicator US - L0 | Y |
| Approximate Resistor Value (k ohms) | 3-10k ohms |
| Center Electrode Core Material | Copper |
| Center Electrode Design | Standard |
| Center Electrode Tip Material | Platinum |
| Core Nose Length | 0.700 IN |
| Electrical Terminal Type | Non-Removable Nut |
| FAQ - Answer 1 | 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. |
| FAQ - Answer 2 | 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. |
| FAQ - Answer 3 | 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. |
| FAQ - Answer 4 | Yes. When ACDelco spark plugs are manufactured, they are pre-gapped to the correct gap specification. |
| FAQ - Answer 5 | 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. |
| FAQ - Answer 6 | 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. |
| FAQ - Answer 7 | 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. |
| FAQ - Answer 8 | Yes, ACDelco has marine spark plugs for many applications. |
| FAQ - Question 1 | Is there a recommended interval for changing my vehicle's spark plugs? |
| FAQ - Question 2 | Should I change all of my vehicle's spark plugs at the same time? |
| FAQ - Question 3 | Does a diesel engine require a different type of plug than a gas engine? |
| FAQ - Question 4 | Are ACDelco spark plugs pre-gapped? |
| FAQ - Question 5 | When I replace my spark plugs, should I also replace my spark plug wires? |
| FAQ - Question 6 | What is pre-ignition and can it damage my engine? |
| FAQ - Question 7 | Can I just clean my spark plugs instead of replacing them? |
| FAQ - Question 8 | Does ACDelco have marine spark plugs? |
| Features & Benefits - Bullet 1 | One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life |
| Features & Benefits - Bullet 2 | Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system |
| Features & Benefits - Bullet 3 | Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance |
| Features & Benefits - Bullet 4 | Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional |
| Features & Benefits - Bullet 5 | ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors |
| Features & Benefits - Bullet 6 | GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle |
| Features & Benefits - Bullet 7 | GM regularly updates production and service part designs to integrate new materials and technologies |
| Good Maintenance Practices - Section 1 - Bullet 1 | 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 |
| Good Maintenance Practices - Section 1 - Bullet 2 | Brush or air blast dirt away from the well areas before removing spark plugs. C
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