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Product Information

Product Details
Part No. AP5125
Warranty Details (4 YR REPLACEMENT IF DEFECTIVE)
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite delivers unmatched reliability. Designed and engineered in the USA, these spark plugs feature a high nickel alloy side electrode that maintains a precise gap and a full platinum tip that ensures virtually no gap erosion for extended life. The necked-down center electrode fires quicker and cleaner with less voltage, resulting in easier starts, quicker acceleration, and improved fuel economy compared to standard plugs. The tapered seat type further enhances performance and durability. For even greater performance, consider upgrading to Autolite Double Platinum or Iridium XP spark plugs.

Product Features:
  • High nickel alloy side electrode maintains precise gap
  • Full platinum tip assures virtually no gap erosion for long life
  • Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
  • Improved Fuel Economy: Designed to enhance fuel efficiency compared to standard spark plugs.
  • Tapered Seat Type: Enhances overall performance and durability.
Specifications
Center Electrode Core Material:
Platinum

Electrical Terminal Type:
Stud

Center Electrode Tip Material:
Platinum

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Tapered

Ground Electrode Tip Material:
Nickel

Reach:
0.54 in

Reach:
14 mm

Resistance:
4000

Pre-Gap Size:
0.044 in

Pre-Gap Size:
1.1 mm

Thread Diameter:
18 mm

Hex Size:
13/16" in

Hex Size:
21 mm

Seat Type:
Tapered

Resistor Type:
Yes
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