---
product_id: 14671984
title: "5325 Denso Iridium Spark Plug. Part # IT16"
brand: "denso"
price: "£17.48"
currency: GBP
in_stock: true
reviews_count: 1
url: https://www.desertcart.co.uk/products/14671984-5325-denso-iridium-spark-plug-part-it16
store_origin: GB
region: United Kingdom
---

# 4mm Iridium Center Electrode Tapered Cut U-groove Enhanced Performance 5325 Denso Iridium Spark Plug. Part # IT16

**Brand:** denso
**Price:** £17.48
**Availability:** ✅ In Stock

## Summary

> Ignite Your Drive! 🚗💨

## Quick Answers

- **What is this?** 5325 Denso Iridium Spark Plug. Part # IT16 by denso
- **How much does it cost?** £17.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/14671984-5325-denso-iridium-spark-plug-part-it16)

## 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

- • **Easy Installation:** Designed for a hassle-free fit, making upgrades a breeze for any DIY enthusiast.
- • **Enhanced Performance:** Boost your vehicle's performance with improved throttle response and fuel efficiency.
- • **Precision Engineering:** Tapered cut U-groove design ensures optimal fuel combustion.
- • **Long-Lasting Durability:** Iridium construction offers exceptional longevity, reducing the need for frequent replacements.
- • **Unleash Your Engine's Potential:** Experience superior ignition efficiency with the 4mm iridium center electrode.

## Overview

The Denso 5325 Iridium Spark Plug (Part # IT16) features a 4mm iridium center electrode and a tapered cut U-groove ground electrode, designed to enhance ignition efficiency and engine performance while providing long-lasting durability.

## Description

Denso's Iridium power spark plugs help your vehicle achieve unparalleled performance. It alters the belief that a mere spark plug can add power and mileage. This is done by combining an ultra-fine 0.4mm diameter Iridium center electrode with a tapered cut

Review: good plug - I ordered this plug to replace standard plugs that came in vehicle. fit was perfect and performance was good as well. would recomend to a friend

## Features

- Denso Part# IT16
- 0.4mm Iridium Center Electrode
- Tapered Cut U-groove Ground Electrode

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000M6XNZQ |
| Brand | Denso |
| Brand Name | Denso |
| Compatible with Vehicle Type | UTV |
| Core Material | Iridium |
| Customer Reviews | 4.5 out of 5 stars 14 Reviews |
| Gap Size | 1.1 Millimeters |
| Item Weight | 0.11 Pounds |
| Manufacturer | Denso Sales California, Inc. |
| Manufacturer Part Number | 5325 |
| Model Number | it16 |
| Number of Items | 1 |
| Thread Size | 1.25mm |
| Top Material Type | Nickel |
| UPC | 309258375237 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | UTV |

## Images

![5325 Denso Iridium Spark Plug. Part # IT16 - Image 1](https://m.media-amazon.com/images/I/51NiuwUS0bL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good plug
*by E***O on August 5, 2012*

I ordered this plug to replace standard plugs that came in vehicle. fit was perfect and performance was good as well. would recomend to a friend

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**Shop now:** [https://www.desertcart.co.uk/products/14671984-5325-denso-iridium-spark-plug-part-it16](https://www.desertcart.co.uk/products/14671984-5325-denso-iridium-spark-plug-part-it16)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-26*