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Product Information

Product Details
Part No. AP5405
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, and enhanced acceleration while improving fuel efficiency. The platinum firing tip prevents gap erosion, extending service life, while the high alumina ceramic insulator provides excellent thermal conductivity and insulation for added strength. Designed with a nickel-plated shell, these spark plugs resist corrosion for long-lasting reliability. The multi-rib insulator prevents flash-over, and the flat gasket seat type enhances consistent and dependable operation. With an extra-long projection center electrode and advanced design, these spark plugs deliver cleaner ignition, contributing to better engine performance and reduced emissions. Perfect for performance-grade applications, Autolite Platinum spark plugs combine innovative materials and engineering to offer exceptional value and reliability for your vehicle.

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.
  • Reliable and Consistent: The gasket seat type enhances the reliability and performance of these premium spark plugs, ensuring consistent and dependable operation.
  • Cleaner Ignition: The advanced design of the Autolite Platinum Spark Plug ensures cleaner ignition, contributing to better engine performance and reduced emissions.
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

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

Manufacturer Heat Range:
9

Pre-Gap Size:
0.05 in

Reach:
0.75 in

Resistor:
Suppressor

Resistor Type:
Yes

Seat Type:
Flat

Skirt:
Yes

Thread Diameter:
14 mm

Tip Configuration:
Special Power

Washer(s) Included:
Yes

Wrench Diameter:
5/8 in
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