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Product Information

Product Details
Part No. AP5243
Warranty Details (4 YR REPLACEMENT IF DEFECTIVE)
Autolite Platinum spark plugs are crafted for superior 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, better acceleration, and enhanced fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, ensuring reliable operation, and the nickel-plated shell resists corrosion for long-lasting durability. With a long projection center electrode and tapered seat type, these performance-grade spark plugs deliver consistent results. The combination of platinum and nickel materials in the electrode tips further enhances reliability, making them a dependable choice for maintaining engine efficiency and longevity.

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.
  • Incorporates a long projection center electrode and tapered seat type to ensure consistent performance and reliable engine operation.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
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:
3.022

Manufacturer Heat Range:
10

Pre-Gap Size:
0.04 in

Reach:
0.679 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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