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ACDelco Iridium Spark Plug: Advanced Technology for Superior Durability

(7 reviews)
Part # 41-168
7 yr replacement if defective
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Product Information

Product Details
Part No. 41-168
Warranty Details (7 YR REPLACEMENT IF DEFECTIVE)
ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are our latest in spark plug technology and an exact replacement for your vehicles original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. ACDelco GM Original Equipment parts are the true OE parts installed during the production of 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:
  • Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components
  • Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
  • Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
  • Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
  • Iridium plugs are laser-welded which provides precision welds, reduces excess debris and wear rate, thus increasing durability
  • 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 Design:
Fine Wire

Center Electrode Insulator Tip Projection:
3 mm

Center Electrode Tip Material:
Iridium

Electrical Terminal Type:
Non-Removable Nut

Grade Type:
Regular

Ground Configuration:
Standard

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Platinum

Hex Size:
16 MM

Hex Type:
Hex

Indexed:
No

Insulator Height:
2.07 in

Insulator Material:
Aluminum Oxide

Manufacturer Heat Range:
14

Pre-Gap Size:
0.040 in

Reach:
25 mm

Resistance:
7000 ohm

Resistor Type:
Yes

Seat Type:
Tapered

Skirt:
No

Thread Diameter:
0.55 in

Washer(s) Included:
No
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4.86 out of 5
7 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
6
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Great price on OEM plugs
Pros
No Pros
Cons
No Cons
Reviewed by 7 Customers
I would buy this product again
Vehicle is running a lot smoother after we purchased GM parts
Bottom Line Yes, I would recommend to a friend
i would buy these plugs again you can't go wrong w ac delco
easy to install
Bottom Line Yes, I would recommend to a friend
OEM for less
Advance always has the right product at the right price.
Bottom Line Yes, I would recommend to a friend
Works!
Great
Great price on OEM plugs
I needed the plugs and they had them for a great price.
Bottom Line Yes, I would recommend to a friend
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