---
product_id: 766634627
title: "Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2)"
brand: "e3"
price: "R$302"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire
store_origin: BR
region: Brazil
---

# Boosts power output by up to 5% Reduces fuel consumption for longer drives DiamondFIRE tech accelerates flame propagation Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2)

**Brand:** e3
**Price:** R$302
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s true potential with DiamondFIRE technology!

## Quick Answers

- **What is this?** Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2) by e3
- **How much does it cost?** R$302 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/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire)

## Best For

- e3 enthusiasts

## Why This Product

- Trusted e3 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Cross-compatible with top brands and backed by a limited lifetime warranty for peace of mind
- • **DiamondFIRE Precision:** Patented dual-leg electrode ensures unmatched heat transfer and performance stability
- • **Race-Ready Power Boost:** Engineered to increase horsepower and torque for that competitive edge
- • **Fuel Efficiency Champion:** Optimizes fuel burn to save you money and reduce emissions
- • **Perfect Fit for Performance:** 14mm thread and taper seat designed specifically for high-performance racing engines

## Overview

The E3.109 Premium Racing Spark Plug features patented DiamondFIRE technology with a dual-leg ground electrode that enhances flame propagation for increased power, improved fuel efficiency, and reduced emissions. Designed specifically for racing applications, it offers a precise 14mm thread and taper seat, ensuring compatibility with major spark plug brands and backed by a limited lifetime warranty for durability.

## Description



## Features

- The information below is per-pack only
- HIGH-PERFORMANCE DESIGN: Built for racing applications, the E3.109 spark plug is engineered to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- DIAMONDFIRE TECHNOLOGY: Features E3’s patented DiamondFIRE ground electrode secured with dual legs for excellent heat transfer and unmatched performance stability
- OPTIMAL ENGINE EFFICIENCY: The patented DiamondFIRE ground electrode design enhances engine stability by promoting faster flame propagation, enabling a more complete burn of the fuel/air mixture
- RACING-SPECIFICATIONS: Specifically designed for high-performance racing applications, this spark plug features a 14mm thread, 0.708” reach, 5/8” hex, and a taper seat
- COMPATIBILITY AND DURABILITY: Cross-compatible with Autolite AR93, AR94; Champion 280, 685, S59YC, S61YC; and NGK 7891, R5724-9; backed by a limited lifetime warranty, ensuring long-lasting durability and reliable performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | E3 Spark Plugs |
| Brand | E3 |
| Item Weight | 3.2 ounces |
| Product Dimensions | 1 x 4 x 6 inches |
| Item model number | E3.109 |
| Manufacturer Part Number | E3.109 |

## Images

![Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/61pQSAimCaL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.com.br/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire](https://www.desertcart.com.br/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-04*