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Description:
The Autolite Racing AR3932 Spark Plug is a high-performance, non-resistor style plug designed for demanding racing and street performance use where consistent ignition and heat control are critical. It features a standard center electrode with a nickel tip and a nickel ground electrode tip, along with a flat seat for secure installation in compatible cylinder heads.
Autolite Racing plugs are engineered with a cut-back ground electrode design to support strong ignitability of the flame kernel and improved heat transfer. The plug also uses anti-corrosive nickel plating to help resist rusting and maintain durability over time. A high alumina multi-rib ceramic insulator supports thermal conductivity and insulation strength while helping reduce flash-over in high-stress conditions. This plug is specified with a short projection and a 0.6 mm pre-gap.
Features:
Autolite® Racing high-performance non-resistor spark plug
Center electrode design: Standard
Center electrode tip material: Nickel
Ground electrode tip design: Standard
Ground electrode tip material: Nickel
Cut-back ground electrode design for improved ignitability and heat transfer
Anti-corrosive nickel plating to resist rusting
High alumina multi-rib ceramic insulator for thermal conductivity and insulation strength
Center electrode projection: Short projection
Seat type: Flat
Hex size: 5/8 in
Thread diameter: 14 mm
Pre-gap size: 0.6 mm
Manufacturer heat range: 15
Resistance (Ohm): 1
Order Processing
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.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
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.
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).
