Auto Plus/Autolite AR3911 Spark Plug

Racing Plug


Part Number AR3911
Add to wishlist Add to compare


Spark Plug; Racing; Without Resistor; Yttrium-Enhanced Alloy; Standard Length; Mid Projection Tip

Since its inception, the Autolite ® brand has provided the automotive aftermarket & Original Equipment manufacturers the highest quality ignition products. We have been in operation for over 100 years & have produced more than 11 Billion spark plugs & glow plugs. Our plugs are specifically designed for each application to meet or exceed OE quality & performance. Autolite makes plugs for Japanese, European & Korean cars as well as plugs for Lawn & Garden & Power Sports. As a leading supplier of spark plugs, ignition wire sets & Coil-on-Plug boots, the Autolite brand has the right ignition products for your vehicle, regardless of make or model, import or domestic.

Resistor: No

Electrode Type: OEM

Electrode Core Material: Copper

Electrode Tip Material: Chromium Nickel Alloy

Insulator Type: Projected

Thread Size (IN): 0.551 Inch

Thread Size (MM): 14 Millimeter

Reach: 3/4 Inch

Seat Type: Gasket

Wrench Diameter: 5/8 Inch

Quantity: Single

– Cut Back Ground Electrode For Improved Ignitability

– Anti-Corrosive Nickel Plating

– Large Ground Electrode For Better Heat Transfer

– Used By Many Professional Car Drivers

– Limited 90 Day Warranty


Weight 0.10500 kg
Dimensions 1.10000 × 3.55000 × 1.05000 cm

Part Number