---
product_id: 22781911
title: "Denso (5309) IXU24 Iridium Power Spark Plug, (Pack of 1)"
brand: "denso"
price: "€ 15.31"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/22781911-denso-5309-ixu24-iridium-power-spark-plug-pack-of-1
store_origin: IE
region: Ireland
---

# 0.4mm iridium electrode - max spark efficiency U-groove & taper cut electrode - faster flame growth 360° laser welding - unmatched durability Denso (5309) IXU24 Iridium Power Spark Plug, (Pack of 1)

**Brand:** denso
**Price:** € 15.31
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with precision and power!

## Quick Answers

- **What is this?** Denso (5309) IXU24 Iridium Power Spark Plug, (Pack of 1) by denso
- **How much does it cost?** € 15.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/22781911-denso-5309-ixu24-iridium-power-spark-plug-pack-of-1)

## Best For

- denso enthusiasts

## Why This Product

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

## Key Features

- • **Optimized for UTVs:** Specifically engineered thread size (12mm) and design tailored for UTV vehicle service.
- • **Unrivaled Durability:** DENSO’s patented 360-degree laser welding ensures a rock-solid bond and long-lasting performance.
- • **Rapid Flame Expansion:** Innovative U-groove and taper cut ground electrode accelerates spark flame growth.
- • **Precision Ignition Power:** World’s smallest 0.4mm iridium center electrode for peak firing potential.
- • **Lightweight & Machined Exterior:** Sleek, machined finish with only 1.44 ounces for easy installation and premium feel.

## Overview

The Denso IXU24 Iridium Power Spark Plug features a razor-thin 0.4mm iridium center electrode for maximum ignition efficiency, combined with a U-groove and taper cut ground electrode for faster spark flame growth. Its patented 360-degree laser welding guarantees exceptional durability and structural strength, making it an ideal high-performance spark plug designed specifically for UTVs.

## Description

Increased performance with World's smallest Iridium Center Electrode (0.4mm). To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required voltage.

## Features

- 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential
- U-groove and taper cut ground electrode: provides faster spark flame growth and lessens heat quenching
- DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Denso |
| Core Material | Iridium |
| Thread Size | 12mm |
| Vehicle Service Type | UTV |
| Global Trade Identification Number | 00042511053090 |
| UPC | 042511053090 042511530942 |
| OEM Part Number | DENS7 |
| Manufacturer | Denso |
| Model | IXU24 |
| Item Weight | 1.44 ounces |
| Product Dimensions | 9.35 x 5.51 x 3.07 inches |
| Item model number | IXU24 |
| Batteries | Lithium Metal batteries required. |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | IXU24 |
| Position | Left |

## Product Details

- **Brand:** Denso
- **Core Material:** Iridium
- **Thread Size:** 12mm
- **Vehicle Service Type:** UTV
- **Global Trade Identification Number:** 00042511053090

## Images

![Denso (5309) IXU24 Iridium Power Spark Plug, (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/51dpipPDWpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Proven durability, direct fit replacement, better throttle response
*by C***O on December 27, 2011*

Denso Iridium Spark Plugs, IXU24Tested on Ducati Monster 696These are a direct replacement for NGK DCP8RE or Champion RA6HC spark plugs, which are used on a variety of motorcycles mostly the air-cooled Ducati L-Twin engines, such as the one in my Ducati Monster 696.The fine wire tip is 0.4mm in diameter, which many people confuse as the gap. The OEM gap for my DCP8RE plugs was listed as 0.7-0.8mm, however many people on the Internet recommended 0.9mm as a minimum gap when using Iridium spark plugs. They recommended upgrading the spark plug wires as well to handle the higher voltage for jumping that larger gap.Fine wire iridium plugs are mainly used on automotive engines due to their hardness, resistance to erosion, and overall durability in order to survive 100k miles. Since Ducati motorcycles are rather high maintenance (7500 mile interval for valve adjustments and timing belt replacements), copper plugs are used. I have never had copper plugs last longer than 10k-15k miles before the center electrode showed significant erosion.On a motorcycle, the fine wire iridium plug is supposed to require less voltage to arc across the gap, which means a larger gap is needed/required/recommended. I set my IXU24's at 0.9mm and installed Magnecor 2582 spark plug wires. These wires have a 8.5mm insulation versus the original 6.7mm wires from Ducati.I did not notice an easier time starting the 696, although it is inherently troublesome to start below 50 degrees F. Once the engine fired up and remained idling, the throttle response was slightly better with these Denso iridium spark plugs. I did not notice any increase in power though, and the Magnecor wires did nothing for throttle response or power either. The Denso Iridium plugs by themselves did improve throttle response slightly.I recommend upgrading to the Iridium plugs for reduced maintenance and more consistent spark. I use OEM iridiums on my Ford modular engines and firmly believe in their capabilities.These directly replace the factory plugs. Note that the terminal is threaded, but it comes from Denso with the standard spark plug terminal screwed on. Some plugs like the NGK copper, have a permanent terminal end. Bottom line is that you're good to go with the IXU24 plugs.Overall: 5/5 stars, less expensive than OEM Ducati spark plugs (although 3 times more expensive than OE-replacement NGK copper plugs), proven durability on automotive engines, slightly better throttle response, direct fit.

### ⭐⭐⭐⭐⭐ Amazing
*by M***L on June 12, 2024*

My 2011 Ducati Monster 796 had a lot of backfire and rough running to low speeds..below 3000 rpm. Now it runs perfectly...low speed is steady...high speed is very strong. Highly recommended

### ⭐⭐⭐⭐⭐ My go-to spark plug
*by C***P on December 7, 2018*

I bought this specific spark plug for my (bone stock) 2011 HD Road King. I was having pinging issue under certain conditions. After researching the issue and from previous experiences, I decided to try one heat range cooler spark plug. This is an old school fix, but it worked perfectly. No plug fouling or dark discoloration. It cut back on the pinging dramatically.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-03*