---
product_id: 15743762
title: "4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20"
brand: "denso"
price: "¥6668"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/15743762-4-pcs-new-denso-5304-iridium-power-spark-plugs-ik20
store_origin: JP
region: Japan
---

# Iridium Core for Superior Durability 100% Tested for Reliable Performance 14mm x 1.25mm Thread Size 4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20

**Brand:** denso
**Price:** ¥6668
**Availability:** ✅ In Stock

## Summary

> 💥 Ignite your engine’s potential with Denso Iridium Power!

## Quick Answers

- **What is this?** 4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20 by denso
- **How much does it cost?** ¥6668 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/15743762-4-pcs-new-denso-5304-iridium-power-spark-plugs-ik20)

## 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

- • **Iridium Power Boost:** Advanced iridium core ensures longer life and enhanced ignition efficiency.
- • **Tested to Perfection:** Every spark plug undergoes rigorous quality checks for flawless out-of-the-box use.
- • **Tailored for Your Drive:** Vehicle-specific fit guarantees optimal performance for cars and trucks alike.
- • **Warranty-Backed Confidence:** 1-year replacement warranty keeps your ride worry-free and running smooth.
- • **Precision Fit, Zero Guesswork:** Engineered to meet or exceed OEM specs for seamless compatibility.

## Overview

The Denso 5304 Iridium Power Spark Plugs deliver OEM-level precision with a durable iridium core and advanced metal alloys. Designed for vehicle-specific fitment, each plug is 100% quality tested and backed by a 1-year replacement warranty, ensuring reliable ignition and enhanced engine performance.

## Description

4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20

## Features

- New Spark Plug in Box. Please verify your year, make and model or contact us before pruchasing.
- Designed with high quality materials to meet or exceed OEM Specifications.
- Every single Spark Plug is 100 percent tested throughout the entire manufacturing process for worry free, out-of-the-box performance.
- Product is backed by 1 Year Replacement Warranty!.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00KD400OO |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #571,367 in Automotive ( See Top 100 in Automotive ) #3,150 in Automotive Replacement Spark Plugs |
| Brand | Denso |
| Brand Name | Denso |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 988 Reviews |
| Included Components | 5304 |
| Item Height | 0.96 inches |
| Item Weight | 0.35 Pounds |
| Manufacturer | Denso |
| Manufacturer Part Number | FBA_5304 |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Advanced Metal Alloys |
| UPC | 042511530447 |
| Unit Count | 4.0 Count |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** Denso
- **Core Material:** Iridium
- **Thread Size:** 14mm x 1.25mm
- **Top Material Type:** Advanced Metal Alloys
- **Vehicle Service Type:** Car, Truck

## Images

![4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20 - Image 1](https://m.media-amazon.com/images/I/9153DuSfMEL.jpg)
![4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20 - Image 2](https://m.media-amazon.com/images/I/71HAgs3jqzL.jpg)

## Questions & Answers

**Q: Why is Amazon selling these if everyone is staying they are counterfeit and don’t last?!**
A: No sure my packaging seemed real plugs seemed real plugs still working in my car
Amazon has purged many Chinese vendors from their site

**Q: fits in 1997 toyota camry le 2.2 4 cylinder with no problems?**
A: It indicated it would fit in Toyota engines without adjusting the gap, but the Amazon part finder does an excellent job of indicating fit.  I would rely on that rather than the instructions.

**Q: May you please advise if the spark plugs fit for a toyota rav4 2006?**
A: Ck your book owners manual, if it's the same spark plug then it will fit. I've used it because it's for my Camry. Or if your car still have the original spark plug match it or get the same spark plug. Very big difference when you put new spark plug.

**Q: What's the gap?**
A: Probably 1.1 mm. Google NGK for a complete chart.

## Frequently Bought Together

- 4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20
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- Denso (5304) IK20 Iridium Power Spark Plug, (Pack of 1)

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**Shop now:** [https://www.desertcart.jp/products/15743762-4-pcs-new-denso-5304-iridium-power-spark-plugs-ik20](https://www.desertcart.jp/products/15743762-4-pcs-new-denso-5304-iridium-power-spark-plugs-ik20)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-20*