---
product_id: 465395232
title: "FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug"
brand: "autolite iridium ultra"
price: "R$644"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/465395232-fram-ar3933x-4pk-ar-high-performance-racing-non-resistor-spark
store_origin: BR
region: Brazil
---

# Colder heat range for max performance Yttrium alloy cuts side wire temp by 8% Trusted by pro racers for intense conditions FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug

**Brand:** autolite iridium ultra
**Price:** R$644
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug by autolite iridium ultra
- **How much does it cost?** R$644 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/465395232-fram-ar3933x-4pk-ar-high-performance-racing-non-resistor-spark)

## 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

- • **Pro Driver Approved:** Used by professional racers, ensuring top-tier performance under the most demanding conditions.
- • **Lightweight & Robust:** Crafted with nickel core and alloy steel top for optimal strength at just 54.4g.
- • **Race-Ready Heat Management:** Colder heat range designed to handle extreme engine modifications and prevent overheating.
- • **Yttrium-Enhanced Durability:** Advanced alloy reduces side wire temperature by 8%, extending spark plug life and reliability.
- • **Precision Fit & Easy Install:** Center position plug with no assembly required, compatible with a wide range of vehicles.

## Overview

The FRAM AR3933X-4PK is a high-performance racing spark plug engineered with a colder heat range and yttrium-enhanced alloy to reduce side wire temperature by 8%, delivering superior durability and preventing pre-ignition. Trusted by professional drivers, it offers a precision fit and robust construction for intense racing conditions.

## 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 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Autolite Iridium Ultra |
| Core Material | Nickel |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100031099 |
| UPC | 009100031099 |
| Manufacturer | FRAM |
| Model | AR3933X-4PK |
| Product Dimensions | 12.7 x 2.54 x 2.54 cm; 54.43 g |
| Item model number | AR3933X-4PK |
| Manufacturer Part Number | AR3933X-4PK |
| Position | Center |
| Assembly Required | No |
| Manufacturer | FRAM |
| Country of Origin | USA |
| Item Weight | 54.4 g |

## Product Details

- **Brand:** Autolite Iridium Ultra
- **Core Material:** Nickel
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** Car
- **Global Trade Identification Number:** 00009100031099

## Images

![FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug - Image 1](https://m.media-amazon.com/images/I/71Bq-jTkqeL.jpg)
![FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug - Image 2](https://m.media-amazon.com/images/I/81Qh3Rx2YFL.jpg)
![FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug - Image 3](https://m.media-amazon.com/images/I/81qS1Ks6FcL.jpg)
![FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug - Image 4](https://m.media-amazon.com/images/I/71Jo61loCbL.jpg)
![FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug - Image 5](https://m.media-amazon.com/images/I/81C0GaELbSL.jpg)

## Questions & Answers

**Q: Will this work on a predator 212?**
A: No, they do not fit that model.

**Q: Is this pack of 1 or 4?**
A: These are sold in packs of 4. So if you need a total of 8 spark plugs, add a quantity of 2 to your cart.

**Q: Are these the same as ar3910x?**
A: The 3933 is the standard and the 3910 is the power tip.  Not sure what the difference is.  They are the same heat range.

## Frequently Bought Together

- FRAM AR3933X-4PK Ar High Performance Racing Non-Resistor Spark Plug
- Autolite-AR3910X Ar High Performance Racing Non-Resistor Spark Plug, 4-Pack

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**Shop now:** [https://www.desertcart.com.br/products/465395232-fram-ar3933x-4pk-ar-high-performance-racing-non-resistor-spark](https://www.desertcart.com.br/products/465395232-fram-ar3933x-4pk-ar-high-performance-racing-non-resistor-spark)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-08*