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Product Information

Product Details
Part No. AP5426
Warranty Details (4 YR REPLACEMENT IF DEFECTIVE)
Autolite Platinum spark plugs are crafted for exceptional performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and improved fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator enhances thermal conductivity and insulation for added strength. Designed with a multi-rib insulator to prevent flash-over and a nickel-plated shell for superior corrosion resistance, these spark plugs deliver reliable, long-lasting performance. The extra-long projection of the standard center electrode design, combined with a nickel ground electrode tip, optimizes ignition for better acceleration and reliability. With a tapered seat type and integrated resistor, these performance-grade spark plugs are engineered to meet the demands of your engine while providing excellent value and durability.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • Resistor and Tapered Seat Type: Optimized for superior performance and reliability.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
Extra-Long Projection

Center Electrode Tip Material:
Platinum

Electrical Terminal Type:
Non-Removable Nut

Electrode Tip Material:
Platinum ball

Grade Type:
Performance

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
5/8 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Insulator Type:
Standard

Length:
3.56

Manufacturer Heat Range:
9

Pre-Gap Size:
0.05 in

Reach:
0.982 in

Resistor:
Yes

Resistor Type:
Yes

Rib Configuration:
Standard

Seat Type:
Tapered

Shell Material:
Steel alloy

Side Electrode:
Yes

Skirt:
Yes

Terminal Top Fixed or Threaded:
Fixed

Thread Diameter:
14 mm

Tip Configuration:
Single platinum

Washer(s) Included:
No
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