---
product_id: 12620826
title: "NGK Spark Plugs 3961 Spark Plug BR8ES"
brand: "ngk"
price: "€ 16.89"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/12620826-ngk-spark-plugs-3961-spark-plug-br8es
store_origin: GR
region: Greece
---

# Copper core for superior conductivity Vehicle-specific 14mm thread size 20k-30k mile durability rating NGK Spark Plugs 3961 Spark Plug BR8ES

**Brand:** ngk
**Price:** € 16.89
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with NGK’s precision spark!

## Quick Answers

- **What is this?** NGK Spark Plugs 3961 Spark Plug BR8ES by ngk
- **How much does it cost?** € 16.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/12620826-ngk-spark-plugs-3961-spark-plug-br8es)

## 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

- • **Copper Core Power Boost:** Enhanced copper core delivers superior conductivity for reliable ignition and smoother starts every time.
- • **Long-Lasting Durability:** Rated for 20,000 to 30,000 miles, this spark plug keeps your engine firing strong mile after mile.
- • **Trusted Brand Excellence:** From NGK, a global leader in ignition technology, backed by a limited warranty for peace of mind.
- • **Precision Fit for Peak Performance:** Engineered with a 14mm thread size to ensure a perfect, vehicle-specific fit that maximizes efficiency.
- • **Seamless Replacement Compatibility:** Directly replaces OEM parts like 818 RN2C and 8M0176668-MERCURY MARINE for hassle-free upgrades.

## Overview

The NGK Spark Plug 3961 BR8ES features a copper core for enhanced conductivity, a 14mm thread size for vehicle-specific fit, and a durability rating of 20,000 to 30,000 miles. Trusted by professionals and backed by NGK’s limited warranty, it offers reliable ignition performance and seamless OEM replacement compatibility.

## Description

Quality & Performance

## Features

- Quality Assured
- Part number: 3961
- Package Weight: 1.399 pounds
- Included components: SPARK PLUG

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004JAYHKG |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,063,528 in Automotive ( See Top 100 in Automotive ) #5,309 in Automotive Replacement Spark Plugs |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Customer Reviews | 4.4 4.4 out of 5 stars (59) |
| Global Trade Identification Number | 00087295039618 |
| Included Components | SPARK PLUG |
| Item Highlight | Replaces 818 RN2C E3.31 F8RC. 20k-30k mileage rated. |
| Item Type Name | Accessories |
| Item Weight | 2.08 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | 3961 |
| Manufacturer Warranty Description | Limited Warranty |
| Model Number | 3961 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 8M0176668-MERCURY MARINE |
| Thread Size | 14mm |
| UPC | 087295039618 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** NGK
- **Core Material:** Copper
- **Global Trade Identification Number:** 00087295039618
- **Thread Size:** 14mm
- **Vehicle Service Type:** Car, Truck

## Images

![NGK Spark Plugs 3961 Spark Plug BR8ES - Image 1](https://m.media-amazon.com/images/I/51wB4cs8MoL.jpg)

## Frequently Bought Together

- NGK Spark Plug 3961 Spark Plug BR8ES
- NGK Spark Plug, NGK BR8ES Solid, ea, 1
- NGK Spark Plug, NGK BR9ES, ea, 1

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-17*