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  • Autolite Platinum Spark Plug – AP5426
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Autolite Platinum Spark Plug – AP5426
Autolite Platinum Spark Plug – AP5426
Load image into Gallery viewer, Autolite Platinum Spark Plug – AP5426
Load image into Gallery viewer, Autolite Platinum Spark Plug – AP5426

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Autolite Platinum Spark Plug – AP5426

AUTOLITE
ELE1917
In stock
$11.56 $10.99
Description:The Autolite AP5426 Platinum Spark Plug is engineered to deliver reliable ignition performance, smoother engine starts,...
$10.99
Autolite Platinum Spark Plug – AP5426
Description

Description:
The Autolite AP5426 Platinum Spark Plug is engineered to deliver reliable ignition performance, smoother engine starts, and improved fuel efficiency. Its platinum center electrode firing tip helps resist gap erosion, maintaining consistent spark delivery and extending service life compared to conventional spark plugs.

The copper core center electrode enhances heat transfer to maintain optimal operating temperatures and reduce fouling. A high alumina ceramic insulator provides excellent electrical insulation and thermal conductivity, supporting dependable ignition performance. The multi-rib insulator helps prevent flash-over, while the nickel-plated shell offers corrosion resistance for long-lasting durability.

Autolite platinum spark plugs are designed to provide dependable performance in many gasoline engine applications, helping maintain smooth operation and efficient combustion.

Features:

  • Platinum center electrode firing tip helps prevent gap erosion and extend spark plug life

  • Copper core center electrode improves heat transfer and fouling resistance

  • Multi-rib ceramic insulator helps prevent flash-over for reliable ignition

  • High alumina ceramic insulator enhances durability and heat dissipation

  • Nickel-plated shell helps resist corrosion for longer service life

Product Specifications:

  • Part number: AP5426

  • Brand: Autolite

  • Product type: Platinum spark plug

  • Center electrode core material: Copper

  • Center electrode tip material: Platinum

  • Ground electrode core material: Nickel

  • Ground electrode tip material: Nickel

  • Ground configuration: Single

  • Ground electrode quantity: 1

  • Thread diameter: 14 mm

  • Seat type: Tapered

  • Washer included: No

  • Reach: 24.94 mm

  • Hex size: 16 mm

  • Resistor type: Yes

  • Resistance: 4000 ohms

  • Pre-gap size: 1.27 mm

  • Manufacturer heat range: 9

  • Insulator material: Ceramic

  • Center electrode design: Standard

  • Center electrode projection: Extra-long projection

  • Electrical terminal type: Non-removable nut

  • Skirt: Yes

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All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

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Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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