---
product_id: 261588337
title: "NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4"
brand: "ngk"
price: "31782CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Ngk"
url: https://www.desertcart.sn/products/261588337-ngk-iridium-ix-spark-plug-lfr7aix-2309-pk4
store_origin: SN
region: Senegal
---

# Iridium tip for superior ignition Copper core for optimal heat dissipation Trivalent plating for corrosion resistance NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4

**Brand:** ngk
**Price:** 31782CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite Performance, Drive with Confidence!

## Quick Answers

- **What is this?** NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4 by ngk
- **How much does it cost?** 31782CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/261588337-ngk-iridium-ix-spark-plug-lfr7aix-2309-pk4)

## Best For

- ngk enthusiasts

## Why This Product

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

## Key Features

- • **Heat Mastery:** Copper core combined with pure alumina silicate ceramic insulator optimizes heat transfer, preventing overheating and extending spark plug life.
- • **Engineered in Japan:** Crafted with precision and quality control, NGK Iridium IX spark plugs bring trusted Japanese engineering to your vehicle’s heart.
- • **Flashover Prevention:** Innovative corrugated ribs design stops flashover, ensuring reliable ignition even under extreme conditions.
- • **Unmatched Durability:** Trivalent metal plating ensures long-lasting anti-corrosion and anti-seizing performance, keeping your engine running smooth mile after mile.
- • **Precision Ignition Power:** Iridium IX tip delivers a consistently strong spark, maximizing fuel efficiency and engine responsiveness for that next-level driving experience.

## Overview

The NGK Iridium IX Spark Plug LFR7AIX #2309 PK4 features advanced trivalent metal plating for superior corrosion resistance, a copper core for efficient heat removal, and a pure alumina silicate ceramic insulator for enhanced strength and heat transfer. Designed with corrugated ribs to prevent flashover, these spark plugs deliver reliable, high-performance ignition engineered in Japan, making them a top choice for automotive enthusiasts seeking durability and efficiency.

## Description

4 PCS *NEW* -- NGK 2309 Iridium Spark Plugs LFR7AIX --- Made IN Japan

Review: I checked the plug gaps. Found them all to be about 0.5mm. Opened them up to required 1.1mm. Then thought this doesn't appear to be correct. Spark plugs shouldnt need adjusting, certainly not by 50%. Didnt trust them, threw them away. Came up as suitable for my car on desertcart. Waste of money and time.
Review: Fell kauf passt nicht und schade

## Features

- Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
- Corrugated ribs prevent flashover
- Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
- Copper core aids in heat removal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003RYMPUY |
| Best Sellers Rank | #19,196 in Automotive ( See Top 100 in Automotive ) #95 in Automotive Performance Spark Plugs |
| Brand | NGK |
| Customer Reviews | 4.6 4.6 out of 5 stars (419) |
| Date First Available | 19 January 2014 |
| Item Weight | 0.28 g |
| Item model number | 2309 |
| Manufacturer | NGK |
| Manufacturer Part Number | LFR7AIX |
| Model | Spark Plug |
| OEM Part Number | FORD%1505812 |
| Position | Center |
| Product Dimensions | 122.53 x 117.65 x 27.74 cm; 0.28 g |

## Product Details

- **Brand:** NGK
- **Core material:** Iridium
- **Thread size:** 14mm x 1.25mm
- **Top material type:** iridium
- **Vehicle service type:** Car, Truck

## Images

![NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4 - Image 1](https://m.media-amazon.com/images/I/71hclq6PseL.jpg)

## Questions & Answers

**Q: Will these fit a 2009 subaru wrx?**
A: Yes these will fit as i also use them in my 2009 wrx. Do not use unless you are at a minimum of 100 hp over stock though as it could hurt performance and fuel economy. These are  NOT pre gapped for our Subaru WRX . Take your time and gap these plugs . Do not gap below .024 . I run a built motor and even before that i was pro tuned on both 91,93 and E85. Full bolt ons , headers, fuel pump, intake, hks blow off, blouch 20 G turbo and full 3 in back exhaust. Hybrid speed density . I still run them at .026 gap. Works very well for me.

**Q: Will this fit on the 2006 mitsubishi evo 9 mr?**
A: Yea

**Q: Are these one step colder ?**
A: Yes these are 1 heat range colder

**Q: Can I return these plugs? They were too long for my Subaru.**
A: Sure you can.

## Customer Reviews

### ⭐ Review
*by N***G on 26 May 2020*

I checked the plug gaps. Found them all to be about 0.5mm. Opened them up to required 1.1mm. Then thought this doesn't appear to be correct. Spark plugs shouldnt need adjusting, certainly not by 50%. Didnt trust them, threw them away. Came up as suitable for my car on amazon. Waste of money and time.

### ⭐⭐⭐ Review
*by A***E on 2 June 2021*

Fell kauf passt nicht und schade

### ⭐⭐⭐⭐⭐ Review
*by M***Z on 8 January 2026*

These were perfect for my Subaru STI 2018 it actually feel a better performance of the engine

## Frequently Bought Together

- NGK Iridium IX Spark Plug LFR7AIX # 2309 PK4
- MOTUL 8100 X-Cess Gen 2 SAE 5W40 Full Synthetic Motor Engine Oil 5 Liter Bottle
- Subaru Engine Oil Filter & Crush Gasket KIT 15208AA100 & 11126AA000 Genuine Legacy Outback Impreza Wrx STi Forester Baja (1 Pack)

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**Shop now:** [https://www.desertcart.sn/products/261588337-ngk-iridium-ix-spark-plug-lfr7aix-2309-pk4](https://www.desertcart.sn/products/261588337-ngk-iridium-ix-spark-plug-lfr7aix-2309-pk4)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-03*