DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
⚡ Ignite your engine’s full potential with Autolite Racing Spark Plugs!
Autolite AR3910X Racing Spark Plugs deliver professional-grade ignition with a yttrium-enhanced alloy that reduces side wire temperature by 8%, a colder heat range tailored for modified engines, and a corrosion-resistant nickel plating. Designed for durability and faster ignition, these plugs are a top choice for racers and performance enthusiasts seeking reliable, high-performance spark plugs.
| ASIN | B00IAAVU56 |
| Assembly Required | No |
| Brand | Autolite Iridium Ultra |
| Colour | Neutral |
| Core Material | Nickel |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (628) |
| Date First Available | 11 January 2020 |
| Generic Name | Racing Non-Resistor Spark Plug |
| Global Trade Identification Number | 00009100031105 |
| Item Dimensions LxWxH | 36 x 11 x 4 Millimeters |
| Item Weight | 54.4 g |
| Item model number | AR3910X-4PK |
| Manufacturer | FRAM |
| Manufacturer Part Number | AR3910X-4PK |
| Model | AR3910X-4PK |
| Net Quantity | 4.0 Count |
| Position | Center |
| Product Dimensions | 3.56 x 1.14 x 0.41 cm; 54.43 g |
| Thread Size | 14mm X 1.25 |
| Top Material Type | Alloy Steel |
| UPC | 009100031105 |
| Vehicle Service Type | Car |
D**E
Worked well - bought these in bulk for a kart racing weekend. I change them out twice during the weekend of hard racing because I do not want to be that parent that can't get their kid's kart started when it's go time!
L**K
These are like brisk plugs but a quarter of the cost great upgrade for plugs as long as you know your heat range.
J**R
Se las puse a mis dos mini bike COLEMAN una con motor 196cc y otra con 212cc... Jalan demasiado bien... Muy recomendables.
J**E
Best plugs for mini bike motors!
S**R
They are exactly what they should be. They work great in our tillotson engines.
Trustpilot
1 week ago
2 weeks ago