---
product_id: 9954120
title: "Denso FXE20HR11 Iridium Long-Life Spark Plugs 3439-4 PK"
brand: "denso"
price: "₨2040"
currency: SCR
in_stock: true
url: https://www.desertcart.sc/products/9954120-denso-fxe20hr11-iridium-long-life-spark-plugs-3439-4-pk
store_origin: SC
region: Seychelles
---

# Lasts 3x longer than conventional plugs 0.7mm iridium electrode for max ignitability Five-rib insulator reduces voltage loss Denso FXE20HR11 Iridium Long-Life Spark Plugs 3439-4 PK

**Brand:** denso
**Price:** ₨2040
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with Denso’s long-life spark plugs—where precision meets endurance!

## Quick Answers

- **What is this?** Denso FXE20HR11 Iridium Long-Life Spark Plugs 3439-4 PK by denso
- **How much does it cost?** ₨2040 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/9954120-denso-fxe20hr11-iridium-long-life-spark-plugs-3439-4-pk)

## 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

- • **Flashover Fighter:** Unique five-rib insulator design minimizes voltage loss and prevents misfires for consistent power delivery.
- • **Endurance Champion:** Engineered to last up to three times longer than standard spark plugs—less downtime, more drive time.
- • **Factory-Trusted Quality:** Used by luxury automakers like Toyota and Honda, guaranteeing premium reliability and fit.
- • **Thermal Efficiency Boost:** Copper core electrode delivers superior heat dissipation, protecting your engine under pressure.
- • **Precision Ignition Mastery:** Ultra-fine 0.7mm iridium center electrode ensures lightning-fast starts and peak engine performance.

## Overview

Denso FXE20HR11 Iridium Long-Life Spark Plugs feature a patented 0.7mm iridium alloy center electrode for superior ignitability and longevity. With a copper core for enhanced thermal conductivity and a unique five-rib insulator to reduce voltage loss, these plugs last up to three times longer than conventional models. Trusted by luxury automakers, they deliver reliable, high-performance ignition tailored for cars and trucks.

## Description

Using the same laser welding process as the Iridium Power spark plug, DENSO designed a long life spark plug factory-installed on luxury vehicles by automakers such as GM, Toyota, Honda and Mitsubishi. Using its patented Iridium alloy, DENSO was able to shrink the center electrode to 0.7mm, dramatically improving ignitability and longevity.

## Features

- 100 percent pre-fired to ensure reliable operation
- Copper core center electrode for superior thermal conductivity
- Unique five-rib insulator reduces flashover and decreases voltage loss
- Dual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal.
- Lasts up to three times as long as conventional plugs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Denso |
| Core Material | Iridium |
| Thread Size | 14mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car, Truck |
| Global Trade Identification Number | 00042511343948 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 042511343948 |
| OEM Part Number | MAZDA%1N1918110, NISSAN%224011HC1B, NISSAN%224012331R, NISSAN%22401CK81B, NISSAN%22401CP51B, NISSAN%22401EA014, NISSAN%22401ED815, NISSAN%22401JA01B, NISSAN%22401JD01B, NISSAN%22401JD07B, RENAULT%7701065085, SUBARU%22401EA015 |
| Manufacturer | Denso |
| Model | Spark Plugs |
| Item Weight | 5.6 ounces |
| Item model number | FXE20HR11 (4PK) |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | FXE20HR11 |
| Position | Left |

## Product Details

- **Brand:** Denso
- **Core Material:** Iridium
- **Thread Size:** 14mm
- **Top Material Type:** Alloy Steel
- **Vehicle Service Type:** Car, Truck

## Images

![Denso FXE20HR11 Iridium Long-Life Spark Plugs 3439-4 PK - Image 1](https://m.media-amazon.com/images/I/61o5y9vicrL.jpg)

## Frequently Bought Together

- Denso FXE20HR11 Iridium Long-Life Spark Plugs 3439-4 PK
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**Shop now:** [https://www.desertcart.sc/products/9954120-denso-fxe20hr11-iridium-long-life-spark-plugs-3439-4-pk](https://www.desertcart.sc/products/9954120-denso-fxe20hr11-iridium-long-life-spark-plugs-3439-4-pk)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-13*