---
product_id: 328933686
title: "NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper"
brand: "ngk"
price: "$51.59"
currency: USD
in_stock: false
reviews_count: 5
category: "Ngk"
url: https://www.desertcart.us/products/328933686-ngk-6578-spark-plugs-bpr4es-pack-of-2-copper
store_origin: US
region: United States of America
---

# Corrugated ribs prevent flashover for reliable ignition Copper core for superior heat dissipation Trivalent metal plating resists corrosion & seizing NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper

**Brand:** ngk
**Price:** $51.59
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Ignite your engine’s potential with NGK’s precision spark plugs!

## Quick Answers

- **What is this?** NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper by ngk
- **How much does it cost?** $51.59 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/328933686-ngk-6578-spark-plugs-bpr4es-pack-of-2-copper)

## 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

- • **Durability That Lasts:** Trivalent metal plating ensures long-term anti-corrosion and anti-seizing protection
- • **Ignition You Can Trust:** Corrugated ribs eliminate flashover, delivering consistent spark performance
- • **Proven Legacy of Quality:** NGK’s trusted spark plugs, favored by professionals for decades
- • **Strength Meets Precision:** Pure alumina silicate ceramic insulator offers superior strength and optimal heat transfer
- • **Unmatched Heat Management:** Copper core rapidly removes heat, boosting engine efficiency

## Overview

The NGK 6578 Spark Plugs (BPR4ES) pack of 2 features a copper core for enhanced heat removal, trivalent metal plating for superior corrosion and seizing resistance, and corrugated ribs to prevent flashover. Designed with a pure alumina silicate ceramic insulator, these plugs deliver reliable ignition and durability, making them a trusted choice for professional-grade engine performance.

## Description

Genuine 2 pack NGK Standard 6578 Spark Plug

Review: Item as described. Fitment as described. Would buy from again.
Review: Wored perfectly. Only neede 2 for ZTR, saving spare 2 for next.tune up. Thak you! Great NGK quality as usual! Have used this brand for decades in my motorcyces. Never an issue! Rhank you!!

## 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 | B07CCGGMNZ |
| Best Sellers Rank | 295,910 in Automotive ( See Top 100 in Automotive ) 1,216 in Car Spark Plugs |
| Brand | NGK |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,004) |
| Date First Available | 18 Dec. 2016 |
| Item Weight | 118 g |
| Item model number | 6578 |
| Manufacturer | NGK |
| Manufacturer part number | 6578 |
| Position | Front, Rear |
| Product Dimensions | 8.41 x 2.39 x 4.22 cm; 117.93 g |

## Product Details

- **Brand:** NGK
- **Core material:** Copper
- **Thread size:** 14mm
- **Top material type:** Alumina
- **Vehicle service type:** Motorcycle

## Images

![NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper - Image 1](https://m.media-amazon.com/images/I/71qWY1Fu8CL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: is this a qty. 2 plugs for $10.99 ?**
A: NGK 6578 Spark Plugs (BPR4ES) - Pack of 2

**Q: will these plugs fit a fr730v kawasaki engine?????**
A: Yes I used these on my Toro Timecutter mower with the same Kawasaki engine.  They work fine.

**Q: Will this plug fit my Husqvarna Z254F 54 inch zero turn**
A: Check reference books in auto shop or dept. for specifics accompanied to what your whip manual lists.

**Q: Is the spark plug pre-gapped  or do I need to do it?**
A: They're gapped at about .032"...my application calls for .030", so I adjusted them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***R on 3 July 2024*

Item as described. Fitment as described. Would buy from again.

### ⭐⭐⭐⭐⭐ Review
*by D***Y on 6 October 2025*

Wored perfectly. Only neede 2 for ZTR, saving spare 2 for next.tune up. Thak you! Great NGK quality as usual! Have used this brand for decades in my motorcyces. Never an issue! Rhank you!!

### ⭐⭐⭐⭐⭐ Review
*by D***N on 20 January 2026*

Fixed the issue with getting the mower started. Always starts even I cold weather. Excellent plug. When needed will buy for sure without hesitation

## Frequently Bought Together

- NGK 6578 Spark Plugs (BPR4ES) - Pack of 2, Copper
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- OEM 11013-0752 Air Filter for Kawasaki FR651V FR691V FR730V FS481V FS541V FS600V FS651 Part

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-11*