Skip to content
High-Performance Spark Plug for Racing Applications
The Autolite Spark Plug AR3910X is engineered for racing enthusiasts seeking enhanced ignition performance. This non-resistor spark plug features a yttrium-enhanced alloy construction, ensuring superior durability and efficiency. With a standard length and precise specifications, it is designed to meet the rigorous demands of high-performance engines.
Features
- Cut back ground electrode for improved ignitability
- Anti-corrosive nickel plating for extended lifespan
- Large ground electrode for optimal heat transfer
- Preferred choice among professional car drivers
Specifications
- Manufacturer: Autolite Spark Plugs
- Manufacturer Part Number: AR3910X
- Resistor: No
- Electrode Type: OEM
- Electrode Core Material: Yttrium-Enhanced Alloy
- Electrode Tip Material: OEM
- Insulator Type: Non-Projected
- Thread Size (IN): 0.551 Inch
- Quantity: Single
- Reach: 0.748 Inch
- Seat Type: Gasket
- Wrench Diameter: 5/8 Inch
Shipping & Returns
- This product ships to the US and Canada.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition.
