---
product_id: 6929199
title: "4 New DENSO Iridium IK16 Spark Plugs # 5303"
brand: "denso"
price: "£36.05"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/6929199-4-new-denso-iridium-ik16-spark-plugs-5303
store_origin: GB
region: Great Britain
---

# Iridium core for max spark efficiency 14mm precision thread size Vehicle-specific perfect fit 4 New DENSO Iridium IK16 Spark Plugs # 5303

**Brand:** denso
**Price:** £36.05
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with DENSO Iridium Power – where precision meets performance!

## Quick Answers

- **What is this?** 4 New DENSO Iridium IK16 Spark Plugs # 5303 by denso
- **How much does it cost?** £36.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/6929199-4-new-denso-iridium-ik16-spark-plugs-5303)

## 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

- • **Complete 4-Pack Set:** Get a full set of four spark plugs, ideal for a seamless engine tune-up or upgrade.
- • **Precision 14mm Thread:** Engineered for a perfect fit, ensuring easy installation and optimal sealing every time.
- • **Trusted Denso Quality:** Backed by a leading brand known for reliability and long-lasting automotive components.
- • **Free Shipping Included:** Enjoy fast, free delivery—because your ride deserves premium parts without the wait.
- • **Iridium Power Ignition:** Experience superior combustion with ultra-durable iridium tips for enhanced engine performance.

## Overview

This genuine 4-pack of DENSO Iridium Power 5303 spark plugs features ultra-durable iridium tips and a precise 14mm thread size, designed for vehicle-specific fitment. Ideal for cars and trucks, these plugs deliver enhanced ignition efficiency and reliable performance, all backed by Denso’s trusted manufacturing quality. Free shipping included for a hassle-free upgrade.

## Description

Genuine 4 pack DENSO Iridium Power 5303 Spark Plug

## Features

- FREE SHIPPING For This Item
- Spark Plug #5303
- Iridium Power
- 1order = 4 Pieces

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Denso |
| Core Material | Iridium |
| Thread Size | 14mm |
| Top Material Type | Iridium |
| Vehicle Service Type | Car, Truck |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 026521134574 042511530348 |
| Manufacturer | Denso |
| Model | FBA_IK16 |
| Item Weight | 7.7 ounces |
| Product Dimensions | 3.62 x 3.84 x 0.96 inches |
| Item model number | FBA_IK16 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 5303 |
| Position | Front, Rear |

## Product Details

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

## Images

![4 New DENSO Iridium IK16 Spark Plugs # 5303 - Image 1](https://m.media-amazon.com/images/I/71lCFMzNYzL.jpg)

## Questions & Answers

**Q: does it need gapping or ther is no need to gap this plug?**
A: There is no need to gap this plug. It comes pre gapped. If you attempt to try and gap this plug or any iridium plug you will break the center electrode and render the plug useless.

**Q: Will this fit 2016 toyota prius two hybrid?**
A: I have no idea if they will work however if they fit and meet the heat range I would think yes..I have put them in my Lincoln LS 3.9L V8 three or four years ago like 60,000 miles ago.. yes worth the money ...

**Q: Can i buy 6 spark plugs. my lexus gs350 has six(6) cylinders**
A: this item is for 4 spark plugs only please see other items for sale at Spark Auto Shop for the correct product quantity for your car

**Q: can these plus work on 2007 swift**
A: They might could work but don't buy it from this dealer. Bought 4 in  the summer for a toyota and they didn't work. Seller didn't even address one of my emails. Worst service ever.

## Frequently Bought Together

- 4 New DENSO Iridium IK16 Spark Plugs # 5303
- Standard Motor Products V375 PCV Valve
- FRAM Extra Guard CA9482 Replacement Engine Air Filter for Select Toyota, Scion and Pontiac Models, Provides Up to 12 Months or 12,000 Miles Filter Protection

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/6929199-4-new-denso-iridium-ik16-spark-plugs-5303](https://www.desertcart.co.uk/products/6929199-4-new-denso-iridium-ik16-spark-plugs-5303)

---

*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-22*