---
product_id: 265514243
title: "50003-M45XL M-Series Super Fire Racing Spark Plug"
brand: "hks"
price: "₪184"
currency: ILS
in_stock: true
reviews_count: 6
category: "Hks"
url: https://www.desertcart.co.il/products/265514243-50003-m45xl-m-series-super-fire-racing-spark-plug
store_origin: IL
region: Israel
---

# Thermal Edge tech reduces carbon buildup & misfires Iridium alloy center electrode for superior ignition Shortened anti-vibration outer electrode for durability 50003-M45XL M-Series Super Fire Racing Spark Plug

**Brand:** hks
**Price:** ₪184
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with race-grade spark tech!

## Quick Answers

- **What is this?** 50003-M45XL M-Series Super Fire Racing Spark Plug by hks
- **How much does it cost?** ₪184 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/265514243-50003-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 Power:** 0.6mm iridium center electrode slashes voltage needs for lightning-fast starts.
- • **Vibration-Resistant Design:** Short outer electrode engineered to withstand engine vibrations and extend lifespan.
- • **Carbon-Busting Thermal Edge:** Ceramic insulator tech actively reduces carbon deposits for consistent performance.
- • **Optimized Spark Support Gap:** Innovative gap design prevents misfires by minimizing carbon buildup.
- • **Platinum-Enhanced Durability:** Outer electrode’s platinum chip boosts longevity and ignition reliability.

## Overview

The HKS 50003-M45XL M-Series Super Fire Racing Spark Plug features a 0.6mm iridium alloy center electrode and a platinum chip outer electrode designed for enhanced ignition performance and durability. Its anti-vibration shortened outer electrode and Thermal Edge ceramic insulator reduce carbon buildup and misfires, ensuring smoother, more responsive engine performance ideal for rotary applications.

## 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: Original - ❤️very nice 👍🏼
Review: 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!

## Features

- Heat Range 9
- HKS Spark Plug
- For Rotary Apps

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003THZK5Q |
| Best Sellers Rank | #73,584 in Automotive ( See Top 100 in Automotive ) #426 in Automotive Performance Spark Plugs |
| Brand | HKS |
| Customer Reviews | 4.7 4.7 out of 5 stars (126) |
| Date First Available | 7 August 2012 |
| Exterior | Machined |
| Item Weight | 10 g |
| Item model number | 50003-M45XL |
| Manufacturer | HKS |
| Manufacturer Part Number | 50003-M40G |
| Model | result.feed.gl_automotive-part_number |
| Product Dimensions | 9.5 x 2.5 x 2 cm; 10 g |

## Product Details

- **Brand:** HKS
- **Core material:** Iridium
- **Thread size:** Fourteen millimeters by Nineteen millimeters
- **Top material type:** Metal
- **Vehicle service type:** Car

## Images

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

## Questions & Answers

**Q: Can it be used for honda accord 2011**
A: Seems like yes. Thread is same

## Customer Reviews

### ⭐⭐⭐⭐⭐ Original
*by S***N on 17 July 2025*

❤️very nice 👍🏼

### ⭐⭐⭐⭐⭐ Review
*by R***1 on 19 June 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!

### ⭐ Review
*by R***N on 20 October 2024*

Just received my "brand new spark plug" I ordered... Opened the box and found this in it... a used NGK plug.. this is unreal.

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**Shop now:** [https://www.desertcart.co.il/products/265514243-50003-m45xl-m-series-super-fire-racing-spark-plug](https://www.desertcart.co.il/products/265514243-50003-m45xl-m-series-super-fire-racing-spark-plug)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-03*