---
product_id: 2482051
title: "HKS 50003-M45XL M-Series Super Fire Racing Spark Plug"
brand: "hks"
price: "€ 37.53"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hks"
url: https://www.desertcart.ie/products/2482051-hks-50003-m45xl-m-series-super-fire-racing-spark-plug
store_origin: IE
region: Ireland
---

# Platinum Chip Outer Electrode 0.6mm Iridium Alloy Electrode Anti-Vibration Shortened Electrode HKS 50003-M45XL M-Series Super Fire Racing Spark Plug

**Brand:** hks
**Price:** € 37.53
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with precision and power – don’t just drive, dominate!

## Quick Answers

- **What is this?** HKS 50003-M45XL M-Series Super Fire Racing Spark Plug by hks
- **How much does it cost?** € 37.53 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/2482051-hks-50003-m45xl-m-series-super-fire-racing-spark-plug)

## Best For

- hks enthusiasts

## Why This Product

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

## Key Features

- • **Precision Ignition Boost:** 0.6mm iridium center electrode slashes voltage needs for sharper, faster sparks.
- • **Vibration-Resistant Design:** Shortened, lightweight outer electrode engineered to withstand engine vibrations and extend lifespan.
- • **Carbon-Busting Thermal Edge:** Ceramic insulator’s thermal edge actively reduces carbon buildup for consistent misfire-free runs.
- • **Optimized Spark Support Gap:** Innovative gap design prevents deposits, maintaining peak ignition efficiency over time.
- • **Durability Meets Performance:** Platinum chip outer electrode ensures long-lasting reliability under high stress.

## Overview

The HKS 50003-M45XL M-Series Super Fire Racing Spark Plug features a 0.6mm iridium alloy center electrode paired with a platinum chip outer electrode, delivering superior ignition performance and durability. Its anti-vibration shortened outer electrode design enhances longevity, while the thermal edge ceramic insulator and spark support gap actively reduce carbon buildup, ensuring consistent, high-performance ignition for tuned and high-horsepower engines.

## Description

Specifications 0.6mm Iridium Alloy Center Electrode Iridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability. Outer Electrode with Platinum Chip The Outer Electrode incorporates a square platinum chip which improves urability, and when combined with the iridium center electrode boosts ignition performance. The Outer Electrode features a shortened tip design and tapered shape while maintaining the necessary space for proper ignition. Short Type Outer Electrode (Anti-Vibration) The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode. Thermal Edge After long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits. Spark Support Gap Discharges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.

Review: Perfect upgrade to my tuned elantra n - Switched to these HKS spark plugs and wow — my car runs smoother and feels more responsive. Easy to install and they hold up great even when I push the engine hard. Definitely a solid upgrade if you want better performance without breaking the bank. Highly recommend!
Review: High powered turbo spark plug - Great high horsepower plug. Works in the bi turbo M157 motor with a tune. Keeps things cooler and happy. More durable than oem when tuned.

## Features

- Heat range is 9
- 0.6 millimeter iridium alloy center electrode
- Outer electrode with platinum chip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003THZK5Q |
| Best Sellers Rank | #490,473 in Automotive ( See Top 100 in Automotive ) #106 in Automotive Performance Spark Plugs #2,754 in Automotive Replacement Spark Plugs |
| Brand | HKS |
| Brand Name | HKS |
| Compatible with Vehicle Type | UTV |
| Core Material | Iridium |
| Customer Reviews | 4.8 out of 5 stars 136 Reviews |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 04957266720431 |
| Item Weight | 10 Grams |
| Manufacturer | HKS |
| Manufacturer Part Number | 50003-M40G |
| Thread Size | Fourteen millimeters by Nineteen millimeters |
| Top Material Type | Metal |
| Unit Count | 1 Count |
| Vehicle Service Type | UTV |

## Product Details

- **Brand:** HKS
- **Core Material:** Iridium
- **Thread Size:** Fourteen millimeters by Nineteen millimeters
- **Top Material Type:** Metal
- **Vehicle Service Type:** UTV

## Images

![HKS 50003-M45XL M-Series Super Fire Racing Spark Plug - Image 1](https://m.media-amazon.com/images/I/61Cyvw3gWLL.jpg)

## Questions & Answers

**Q: So how many plugs are in the box? The picture shows 2 plugs for 40.25, so if I want 4 plugs, I should buy quantity of 2, correct?**
A: These plugs are sold individually

**Q: should you buy enough for all of you cylinders or just what you need to replace?**
A: You should use all the same make and model plugs in each cylinder.  Never mix and match makes or models.

**Q: How many does the package have?**
A: They are each, so 1 spark plug.  If the seller has damaged/open packaging units they are a great price!  I got 4 and they were in perfect unused condition, cept for the boxes of course

**Q: Disculpa viene en juego de 4 bujías o solo una**
A: Compre la cantidad requerida, ya que se vende en unidades de 1 pieza.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect upgrade to my tuned elantra n
*by R***1 on June 19, 2025*

Switched to these HKS spark plugs and wow — my car runs smoother and feels more responsive. Easy to install and they hold up great even when I push the engine hard. Definitely a solid upgrade if you want better performance without breaking the bank. Highly recommend!

### ⭐⭐⭐⭐⭐ High powered turbo spark plug
*by D***K on August 31, 2025*

Great high horsepower plug. Works in the bi turbo M157 motor with a tune. Keeps things cooler and happy. More durable than oem when tuned.

### ⭐⭐⭐⭐⭐ Authentic
*by S***Z on May 12, 2025*

Excellent quality

## Frequently Bought Together

- HKS 50003-M45XL M-Series Super Fire Racing Spark Plug
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*