---
product_id: 259821119
title: "Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4"
brand: "autolite iridium ultra"
price: "VT9745"
currency: VUV
in_stock: true
category: "Autolite Iridium Ultra"
url: https://www.desertcart.vu/products/259821119-autolite-ar3923-4pk-high-performance-racing-resistor-spark-plug-pack
store_origin: VU
region: Vanuatu
---

# Colder heat range for max performance Anti-corrosive nickel plating for rust defense Yttrium alloy cuts side wire temp by 8% Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4

**Brand:** autolite iridium ultra
**Price:** VT9745
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s true potential with pro-grade spark plugs!

## Quick Answers

- **What is this?** Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 by autolite iridium ultra
- **How much does it cost?** VT9745 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/259821119-autolite-ar3923-4pk-high-performance-racing-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

- • **Durability Boost:** Yttrium-enhanced alloy reduces side wire temperature by 8%, extending spark plug life
- • **Ignition Precision:** Cut back ground electrode improves flame kernel ignitability for faster starts
- • **Corrosion Resistance:** Nickel plating prevents rust, ensuring long-lasting reliability
- • **Race-Proven Performance:** Trusted by professional drivers for peak racing conditions
- • **Optimized Heat Management:** Colder heat range designed to handle intense engine modifications

## Overview

The Autolite AR3923-4PK High Performance Racing Resistor Spark Plug pack features a colder heat range and yttrium-enhanced alloy that reduces side wire temperature by 8%, improving durability and preventing pre-ignition. Its cut back ground electrode enhances ignition efficiency, while anti-corrosive nickel plating protects against rust. Designed for vehicle-specific fitment, these plugs are the choice of professional racers seeking reliable, high-performance ignition.

## Description

Buy Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Replacement racing spark plug used by many professional car drivers
- Specifically designed with colder heat ranges than the factory plug to enable performance modifications and handle intense conditions
- Contains an Yttrium enhanced alloy to enable up to 8% reduction in side wire 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.Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Autolite |
| Brand | Autolite Iridium Ultra |
| Model | AR3923-4PK |
| Product Dimensions | 2.54 x 2.54 x 8.59 cm; 45.36 g |
| Item model number | AR3923-4PK |
| Exterior | Chrome |
| Manufacturer Part Number | AR3923-4PK |
| Position | Front, Rear |
| Item Weight | 45.4 g |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core material:** Nickel
- **Thread size:** 14mm
- **Top material type:** Nickel
- **Vehicle service type:** Car

## Images

![Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 - Image 1](https://m.media-amazon.com/images/I/71Bq-jTkqeL.jpg)
![Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 - Image 2](https://m.media-amazon.com/images/I/71Jo61loCbL.jpg)
![Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 - Image 3](https://m.media-amazon.com/images/I/71NgsXY4epL.jpg)
![Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 - Image 4](https://m.media-amazon.com/images/I/81C0GaELbSL.jpg)
![Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4 - Image 5](https://m.media-amazon.com/images/I/81Qh3Rx2YFL.jpg)

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**Shop now:** [https://www.desertcart.vu/products/259821119-autolite-ar3923-4pk-high-performance-racing-resistor-spark-plug-pack](https://www.desertcart.vu/products/259821119-autolite-ar3923-4pk-high-performance-racing-resistor-spark-plug-pack)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-03*