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  • Autolite Double Platinum Spark Plug – APP3924
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Autolite Double Platinum Spark Plug – APP3924
Autolite Double Platinum Spark Plug – APP3924
Load image into Gallery viewer, Autolite Double Platinum Spark Plug – APP3924
Load image into Gallery viewer, Autolite Double Platinum Spark Plug – APP3924

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Autolite Double Platinum Spark Plug – APP3924

AUTOLITE
ELE1923
In stock
$16.66 $15.99
Description:The Autolite APP3924 Double Platinum Spark Plug is designed to deliver reliable ignition performance, reduced misfires,...
$15.99
Autolite Double Platinum Spark Plug – APP3924
Description

Description:
The Autolite APP3924 Double Platinum Spark Plug is designed to deliver reliable ignition performance, reduced misfires, and extended service life. Featuring a platinum-to-platinum firing design with platinum pads on both the center and ground electrodes, this spark plug helps minimize gap erosion and maintain consistent spark delivery over time.

A copper core center electrode enhances heat transfer, helping maintain optimal operating temperatures and reducing fouling. The yttrium-enhanced ground electrode improves durability under high temperatures and pressure, making it ideal for distributorless ignition system (DIS) engines. The high alumina ceramic insulator provides excellent thermal conductivity and dielectric strength, while the multi-rib insulator helps prevent flash-over for dependable ignition performance.

Autolite double platinum spark plugs are engineered to provide long-lasting durability and reliable ignition for many gasoline engine applications.

Features:

  • Platinum-to-platinum firing design reduces gap erosion and extends service life

  • Copper core center electrode improves heat transfer and fouling resistance

  • Yttrium-enhanced ground electrode improves durability under high heat and pressure

  • High alumina ceramic insulator enhances insulation and thermal conductivity

  • Multi-rib insulator helps prevent flash-over for consistent ignition performance

Product Specifications:

  • Part number: APP3924

  • Brand: Autolite

  • Product type: Double platinum spark plug

  • Center electrode core material: Copper

  • Center electrode tip material: Platinum

  • Ground electrode core material: Nickel

  • Ground electrode tip material: Platinum

  • Ground configuration: Single

  • Ground electrode quantity: 1

  • Thread diameter: 14 mm

  • Seat type: Flat

  • Washer included: Yes

  • Reach: 0.75 in

  • Hex size: 16 mm

  • Resistor type: Yes

  • Resistance: 4000 ohms

  • Pre-gap size: 0.044 in

  • Manufacturer heat range: 9

  • Insulator material: Ceramic

  • Center electrode design: Standard

  • Center electrode projection: Mid projection

  • Electrical terminal type: Non-removable nut

  • Skirt: Yes

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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.

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Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
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Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
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Customers are responsible for return shipping costs unless the item was defective or incorrect.

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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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