---
product_id: 278039635
title: "E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1)"
brand: "e3"
price: "182 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/278039635-e3-spark-plugs-e3-109-premium-racing-spark-plug-w
store_origin: DK
region: Denmark
---

# DiamondFIRE edge-to-edge spark Up to 5% improved fuel efficiency Optimized for high RPM racing E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1)

**Brand:** e3
**Price:** 182 kr
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1) by e3
- **How much does it cost?** 182 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/278039635-e3-spark-plugs-e3-109-premium-racing-spark-plug-w)

## 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

- • **Cleaner, Greener Ride:** Cuts hydrocarbon emissions, aligning performance with eco-conscious driving.
- • **Precision Engineering:** 14mm thread diameter with 0.708” reach and 5/8” hex for seamless fit in racing engines.
- • **Durability Meets Speed:** Dual-leg ground electrode ensures superior heat transfer and stability under extreme RPMs.
- • **Fuel-Smart Performance:** Engineered to reduce fuel consumption, saving you money and extending your drive.
- • **Race-Ready Power Boost:** Patented DiamondFIRE electrode delivers maximum combustion efficiency for noticeable horsepower gains.

## Overview

The E3.109 Premium Racing Spark Plug features patented DiamondFIRE edge-to-edge electrode technology designed to maximize power output, improve fuel efficiency by up to 5%, and reduce harmful emissions. Built with a 14mm thread diameter, 0.708” reach, and a 5/8” hex, it fits a variety of high-performance racing engines. Its unique dual-leg ground electrode enhances heat transfer and stability, ensuring consistent performance and longer spark plug life under demanding conditions.

## Description

Full description not available

## Features

- High performance racing spark plug for a variety of applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
- Faster flame propagation initiated by ground electrode results in a more complete burn of the fuel and air mixture for smoother acceleration and idle
- Includes one (1) E3.109 spark plug with a limited lifetime warranty
- Crosses with Autolite AR93, AR94; Champion 280, 685, S59YC, S61YC; and NGK 7891, R5724-9

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | E3 Spark Plugs |
| Brand | E3 |
| Model | E3 Spark Plugs Premium Racing Spark Plug with DiamondFIRE Technology |
| Product Dimensions | 2.54 x 10.16 x 15.24 cm; 45.36 g |
| Item model number | E3.109 |
| Exterior | Machined |
| Manufacturer Part Number | E3.109 |
| OEM Part Number | E3.109 |
| Item Weight | 45.4 g |

## Product Details

- **Brand:** E3
- **Core material:** Copper
- **Thread size:** 14 millimeters
- **Top material type:** Copper
- **Vehicle service type:** Motorcycle

## Images

![E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61IDpPrIzML.jpg)
![E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1) - Image 2](https://m.media-amazon.com/images/I/71NnLYKCT7L.jpg)
![E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 1) - Image 3](https://m.media-amazon.com/images/I/51FyQbcdkCL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the gap at 44mm ?**
A: E3.109 is a race plug. The gap for this plug is approximately 25 thousands.

**Q: E-3 spark plug for mtd 951-10292?**
A: E3.22 is the replacement for MTD 951-10292.

**Q: Will this fit my dodge charger RT  2006 with a 5.7 hemi in it if not which E3 plug will it take it?**
A: looked on Google, found that  e3 614 plugs fit the 5.7l hemi

**Q: Do you have a replacement plug for a ngk bpr 2 es ?**
A: No

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.dk/products/278039635-e3-spark-plugs-e3-109-premium-racing-spark-plug-w](https://www.desertcart.dk/products/278039635-e3-spark-plugs-e3-109-premium-racing-spark-plug-w)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-04*