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Home / Autolite 3924 Copper Core Spark Plugs - 12 Pack

Autolite 3924 Copper Core Spark Plugs - 12 Pack

$48.77

Free shipping on all orders.

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The Autolite 3924 Copper Core Spark Plugs 12 Pack is designed to deliver reliable ignition, enhanced engine performance, and long-lasting durability for automotive applications. Built with Autolite's trusted technology, these spark plugs ensure efficient combustion and consistent performance for a smooth driving experience.

Features & Benefits:

🔧 Includes 12 Autolite 3924 spark plugs for convenient bulk replacement
🔧 Copper core design provides excellent conductivity for reliable spark
🔧 Durable construction resists wear and fouling for extended service life
🔧 Engineered for optimal heat transfer and dependable ignition performance

Specifications:

Brand & Part Number: Autolite 3924
Quantity: 12 Pack
Plug Type: Copper Core Spark Plug
Thread Size: 14mm
Reach: 19mm (3/4 in)
Hex Size: 5/8 in (16mm)
Heat Range: 6
Seat Type: Gasket
Resistor: Yes

Choose Autolite 3924 spark plugs for dependable ignition, efficient performance, and trusted quality—order this 12 pack today!

Shipping Info

Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.

Returns

30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.

How do I confirm this part fits?

Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.

Are these parts new?

Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.

How fast will my order ship?

In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.

What is your return policy?

Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.