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Product Information

Product Details
Part No. 41-942
Warranty Details (7 YR REPLACEMENT IF DEFECTIVE)
ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • 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
Specifications
Approximate Resistor Value:
3-10 k

Center Electrode Design:
Standard

Electrical Terminal Type:
Non-Removable Nut

Ground Configuration:
Standard

Ground Electrode Core Material:
Nickel

Ground Electrode Tip Design:
Platinum

Ground Electrode Tip Material:
Platinum

Hex Size:
16

Hex Type:
Hex

Indexed:
No

Insulator Height:
52.07 mm

Pre-Gap Size:
0.05 in

Reach:
17.5 mm

Skirt:
No

Thread Diameter:
0.551 in

Washer Included:
No
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