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Product Information

Product Details
Part No. 41-940
Warranty Details (7 YR REPLACEMENT IF DEFECTIVE)
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

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
  • Approved by US Legal 7/31/19
  • 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
Center Electrode Core Material:
Copper

Center Electrode Tip Material:
Platinum

Ground Configuration:
Pt pad

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Pt pad

Height:
1 in

Hex Size:
16

Insulator Height:
53 mm

Length:
4.1 in

Manufacturer Heat Range:
14

Pre-Gap Size:
1.35 mm

Programming Required:
NO

Reach:
17.5 mm

Resistor Type:
Yes

Seat Type:
Conical

Thread Diameter:
14 mm

Weight:
.52 lb

Width:
3.5 in
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