Specifications

• Resistor Plug: Yes
• Center Electrode Material: Iridium
• Thread Reach: 0.689"
• Hex Size: 0.625"
• Hex Size: 16 mm
• Ground Electrode Quantity: 1
• Gap: 0.05"
• Spark Plug Seat Style: Conical
• Heat Range: 16
• Thread Diameter: 0.551"
• Resistance: 4-6 kOhm
• Insulator Height: 2.063"
• Center Electrode Core Material: Copper
• Ground Configuration: Single
• Ground Electrode Core Material: Nickel Alloy Platinum Pad
• Ground Electrode Tip Design: Single Prong

Features

• Manufactured to restore your vehicle’s ignition system
• Designed with your specific vehicle in mind
• Meticulously crafted for an exact fit
• Made to be highly resistant to wear and tear
• Provides the best quality at a great price

Product Details

GM Original Equipment™ Double Platinum Spark Plug (41-987) by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better than the part your vehicle was manufactured with. This product is made from premium materials to serve you for years to come.

Vehicle Fitment Table

FAQ

Will this fit my vehicle?
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

What part number is this?
The listed part number is 41-987.

Is this product designed for direct replacement?
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

Should I confirm fitment before ordering?
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

Common Searches

• GM Original Equipment™ Double Platinum Spark Plug for Buick Lucerne
• 41-987 fitment
• ACDelco GM Original Equipment™ Double Platinum Spark Plug
• 2006 Buick Lucerne GM Original Equipment™ Double Platinum Spark Plug