---
product_id: 254844550
title: "E3 Spark Plugs E3.109 Premium Racing Spark Plug (1)"
brand: "e3"
price: "$3527"
currency: MXN
in_stock: false
reviews_count: 5
category: "E3"
url: https://www.desertcart.mx/products/254844550-e3-spark-plugs-e3-109-premium-racing-spark-plug-1
store_origin: MX
region: Mexico
---

# Patented DiamondFIRE electrode Faster, more complete fuel burn Dual-leg heat dissipation E3 Spark Plugs E3.109 Premium Racing Spark Plug (1)

**Brand:** e3
**Price:** $3527
**Availability:** ❌ Out of Stock

## Summary

> 💥 Ignite your engine’s full potential with E3’s DiamondFIRE spark!

## Quick Answers

- **What is this?** E3 Spark Plugs E3.109 Premium Racing Spark Plug (1) by e3
- **How much does it cost?** $3527 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/254844550-e3-spark-plugs-e3-109-premium-racing-spark-plug-1)

## 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:** Durable construction means longer spark plug life and consistent high-RPM reliability.
- • **Heat Mastery Design:** Dual-leg electrode ensures superior heat transfer for peak engine performance.
- • **Race-Ready Power Boost:** Unlock up to 10 extra horsepower with patented DiamondFIRE tech.
- • **Plug & Play Compatibility:** Direct replacement for top brands like Champion, Autolite, and NGK—no guesswork needed.
- • **Fuel Efficiency Gamechanger:** Experience smoother acceleration and better mileage with faster flame propagation.

## Overview

The E3.109 Premium Racing Spark Plug features patented DiamondFIRE technology with a dual-leg ground electrode for superior heat transfer and faster, more complete combustion. Designed for racing and high-performance engines, it delivers up to 10 extra horsepower, improved fuel efficiency, and longer spark plug life. Compatible with major OEMs like Champion, Autolite, and NGK, this 14mm taper seat plug ensures easy installation and reliable performance under extreme conditions.

## Description

"The E3.109 premium racing spark plug is a 14mm, 0.708-inch reach plug with a taper seat and projected nose cone, primarily used in racing applications. This high performance spark plug features our patented DiamondFIRE ground electrode, which provides greater power, faster starts, better fuel efficiency, and lower emissions in long-term use. The electrode is secured to the shell with 2 legs to help facilitate heat transfer, and to withstand the intensity of high RPM racing engines. The edge to edge design provides increased efficiency and a faster, more complete burn, which make for optimal performance. The E3.109 spark plug is a replacement for CHAMPION plugs 280, 685, S59YC, and S61YC, as well as Autolite AR93 and AR94, and NGK 7891 and R5724-9.E3 Spark Plugs racing spark plugs offer near-perfect combustion with their patented electrode design that allows for better growth. The DiamondFire design ensures that your vehicle runs at optimal performance, with a dramatic increase in power over an extended spark plug life.Key Features- DiamondFIRE ground electrode maximizes horsepower- Provides a more complete burn of available fuel and improves fuel efficiency- Two-leg design offers excellent heat dissipation"

Review: I've been a mechanic since 1975, what people don't understand is that they don't have to put the spark plus that they call for in your lawnmower. I use the E3 plug. My lawnmower starts easy an I use less gas. Clean the plug an it will last a long time.
Review: Good plugs, gave me 10 more hp and good gas mileage

## Features

- PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 2 legs that help facilitate excellent heat transfer and increase turbulence in the cylinder
- SMOOTHER ACCELERATION: Fast flame propagation initiated by the ground electrode results in a more complete burn of the fuel and air mixture
- WHAT'S INCLUDED: One (1) E3.109 spark plug. Features 14mm thread diameter; 0.708-inch thread reach plug with taper seat; 5/8-inch hex size
- CROSS-REFERENCE: Autolite AR93 and AR94; Champion 280, 685, S59YC, and S61YC; NGK 7891 and R5724-9
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01JLYM1D4 |
| Brand | E3 |
| Customer Reviews | 4.2 4.2 out of 5 stars (57) |
| Date First Available | 3 Aug. 2016 |
| Exterior | Machined |
| Item Weight | 45.4 g |
| Item model number | E3.109 |
| Manufacturer | E3 Spark Plugs |
| Manufacturer part number | E3.109 |
| Model | E3 Spark Plugs Premium Racing Spark Plug with DiamondFIRE Technology |
| OEM Part Number | E3.109 |
| Product Dimensions | 2.54 x 10.16 x 15.24 cm; 45.36 g |

## Product Details

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

## Images

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

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***E on 31 May 2024*

I've been a mechanic since 1975, what people don't understand is that they don't have to put the spark plus that they call for in your lawnmower. I use the E3 plug. My lawnmower starts easy an I use less gas. Clean the plug an it will last a long time.

### ⭐⭐⭐⭐⭐ Review
*by R***E on 30 January 2025*

Good plugs, gave me 10 more hp and good gas mileage

### ⭐⭐⭐⭐⭐ Review
*by G***P on 7 October 2023*

Work very well w cold air intake and a performance chip added about 50 more hourse power

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**Shop now:** [https://www.desertcart.mx/products/254844550-e3-spark-plugs-e3-109-premium-racing-spark-plug-1](https://www.desertcart.mx/products/254844550-e3-spark-plugs-e3-109-premium-racing-spark-plug-1)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-04*