---
product_id: 16983392
title: "NGK Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each"
brand: "ngk"
price: "A$27"
currency: AUD
in_stock: true
category: "Ngk"
url: https://www.desertcart.com.au/products/16983392-ngk-spark-plug-ngk-standard-10-mm-thread-0-749
store_origin: AU
region: Australia
---

# Built-in resistor for stable, interference-free ignition 98% pure copper core for superior heat dissipation 10 mm cold-rolled threads prevent cross-threading NGK Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each

**Brand:** ngk
**Price:** A$27
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with NGK’s precision spark – don’t get left in the cold!

## Quick Answers

- **What is this?** NGK Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each by ngk
- **How much does it cost?** A$27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/16983392-ngk-spark-plug-ngk-standard-10-mm-thread-0-749)

## 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

- • **No Hassle, No Mess:** Trivalent plating eliminates the need for anti-seize, saving you time and effort.
- • **Engineered for Strength:** High-grade alumina silicate ceramic insulator delivers superior heat transfer and mechanical toughness.
- • **Durability Meets Precision:** Cold-rolled 10 mm threads protect your engine from damage during installation.
- • **Reliable Ignition Every Time:** Copper core maximizes heat dissipation to prevent overheating and ensure consistent starts.
- • **Interference-Free Performance:** Integrated resistor reduces electrical noise, keeping your vehicle’s electronics running smoothly.

## Overview

The NGK Standard Spark Plug (Stock #6689) features a 98% pure copper core for enhanced heat dissipation, a durable 10 mm cold-rolled thread to prevent cross-threading, and a high-grade alumina silicate ceramic insulator for superior strength. Its trivalent plating removes the need for anti-seize, while the built-in resistor ensures stable ignition with minimal electrical interference. Perfect for UTVs and universal automotive applications, this spark plug guarantees reliable starts and long-lasting performance.

## Description

Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each

## Features

- 98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
- High-grade alumina silicate ceramic insulator for superior strength and heat transfer
- Cold-rolled threads to prevent cross-threading and damage to cylinder heads
- Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
- Quantity: 1 per package

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001RMAEIS |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #297,714 in Automotive ( See Top 100 in Automotive ) #43 in Automotive Performance Spark Plugs #5,217 in Automotive Ignition Parts |
| Brand Name | NGK |
| Compatible with Vehicle Type | UTV |
| Core Material | Copper |
| Customer Reviews | 4.6 4.6 out of 5 stars (258) |
| Gap Size | 0.75 inches |
| Global Trade Identification Number | 00087295166895 |
| Included Components | NGK 6689 |
| Item Type Name | SPARK_PLUG |
| Item Weight | 0.03 kg |
| Manufacturer | NGK |
| Manufacturer Part Number | CR5EH-9 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Model Number | 6689 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 6689 |
| Thread Size | 10 mm |
| Top Material Type | Nickel |
| UPC | 087295166895 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** NGK
- **Core Material:** Copper
- **Thread Size:** 10 mm
- **Top Material Type:** Nickel
- **Vehicle Service Type:** UTV

## Images

![NGK Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each - Image 1](https://m.media-amazon.com/images/I/71QNg7WcU0L.jpg)

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**Shop now:** [https://www.desertcart.com.au/products/16983392-ngk-spark-plug-ngk-standard-10-mm-thread-0-749](https://www.desertcart.com.au/products/16983392-ngk-spark-plug-ngk-standard-10-mm-thread-0-749)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-09-01*