---
product_id: 47342734
title: "Autolite AR3910 High Performance Racing Non-Resistor Spark Plug, Pack of 1"
brand: "autolite iridium ultra"
price: "AR$31257"
currency: ARS
in_stock: true
reviews_count: 3
url: https://www.desertcart.com.ar/products/47342734-autolite-ar3910-high-performance-racing-non-resistor-spark-plug-pack
store_origin: AR
region: Argentina
---

# 8% cooler sidewire temp colder heat range for power nickel anti-corrosive plating Autolite AR3910 High Performance Racing Non-Resistor Spark Plug, Pack of 1

**Brand:** autolite iridium ultra
**Price:** AR$31257
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s full potential with Autolite AR3910!

## Quick Answers

- **What is this?** Autolite AR3910 High Performance Racing Non-Resistor Spark Plug, Pack of 1 by autolite iridium ultra
- **How much does it cost?** AR$31257 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/47342734-autolite-ar3910-high-performance-racing-non-resistor-spark-plug-pack)

## Best For

- autolite iridium ultra enthusiasts

## Why This Product

- Trusted autolite iridium ultra brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat-Resistant Alloy:** Yttrium-enhanced alloy reduces sidewire temperature by 8%, minimizing pre-ignition risks
- • **Race-Proven Durability:** Trusted by professional drivers for peak performance under pressure
- • **Engineered for Power Mods:** Colder heat range designed specifically to handle high-performance, modified engines
- • **Optimized Ignition Efficiency:** Cut-back ground electrode ensures faster, more reliable flame kernel growth
- • **Long-Lasting Corrosion Defense:** Nickel plating protects against rust, extending spark plug lifespan and reliability

## Overview

The Autolite AR3910 High Performance Racing Spark Plug is engineered for professional-grade durability and ignition efficiency. Featuring a yttrium-enhanced alloy that cuts sidewire temperature by 8%, a colder heat range for modified engines, and a corrosion-resistant nickel plating, this spark plug delivers reliable, long-lasting performance trusted by race car drivers worldwide.

## Description

Autolite Racing Spark Plugs are used by many professional race car drivers. These spark plugs contain an Yttrium-Enhanced Alloy, which enables up to 8 percent reduction in side wire temperature for improved durability and less pre-ignition. Autolite racing plugs are available in colder heat ranges than most plug manufacturers to support modified engines and feature a cut background electrode for improved ignitibility and faster flame kernel growth. They are also nickel plated for a long-lasting, corrosion-resistant finish. Since its inception, the Autolite brand has provided the automotive aftermarket and Original Equipment manufacturers the highest quality ignition products. Autolite has been in operation for over 100 years and has produced more than 11 billion spark plugs and glow plugs. These plugs are specifically designed for each application to meet or exceed OE quality and performance. Autolite makes plugs for Japanese, European, and Korean cars as well as plugs for Lawn & Garden and Power Sports. As a leading supplier of spark plugs, the Autolite brand has the right ignition products for your application, regardless of make or model, import or domestic.

## Features

- Replacement racing spark plug used by many professional car drivers
- Specifically designed with colder heat ranges than the factory plug to handle added power
- Contains an Yttrium-enhanced alloy to enable up to 8% reduction in sidewire temperature for improved durability and less pre-ignition
- Features cut back ground electrode for improved ignitability of flame kernel
- Coated in an anti-corrosive nickel plating to prevent rusting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Autolite Iridium Ultra |
| Core Material | Nickel |
| Thread Size | 14mm |
| Top Material Type | Nickel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100017802 |
| Automotive Fit Type | Universal Fit |
| UPC | 009100017802 |
| OEM Part Number | AR3910 |
| Manufacturer | Autolite |
| Model | AR3910 |
| Item Weight | 0.32 ounces |
| Product Dimensions | 1 x 1 x 3.38 inches |
| Item model number | AR3910 |
| Is Discontinued By Manufacturer | Yes |
| Manufacturer Part Number | AR3910 |
| Position | Front, Rear |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Nickel
- **Thread Size:** 14mm
- **Top Material Type:** Nickel
- **Vehicle Service Type:** Car

## Images

![Autolite AR3910 High Performance Racing Non-Resistor Spark Plug, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/61k--Kgq7AL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Five Stars
*by M***F on July 27, 2017*

great plug for racing motors folks

### ⭐⭐⭐⭐⭐ Five Stars
*by N***N on June 8, 2016*

Ok good

### ⭐⭐⭐⭐⭐ Great plugs
*by M***A on February 21, 2023*

NGK all the way. Only plugs I use. Had problems with other plugs. Never with NGK. Highly recommend for for everything.

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**Shop now:** [https://www.desertcart.com.ar/products/47342734-autolite-ar3910-high-performance-racing-non-resistor-spark-plug-pack](https://www.desertcart.com.ar/products/47342734-autolite-ar3910-high-performance-racing-non-resistor-spark-plug-pack)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-16*