---
product_id: 128427932
title: "NGK Spark Plug LFR6A 6668 (Pack of 4) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm"
brand: "ngk"
price: "¥9756"
currency: JPY
in_stock: true
category: "Ngk"
url: https://www.desertcart.jp/products/128427932-ngk-spark-plug-lfr6a-6668-pack-of-4-watercraft-fx
store_origin: JP
region: Japan
---

# V-cut electrode for rapid spark 0.9mm precise gap for max ignition 26.5mm reach, perfect fit NGK Spark Plug LFR6A 6668 (Pack of 4) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm

**Brand:** ngk
**Price:** ¥9756
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** NGK Spark Plug LFR6A 6668 (Pack of 4) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm by ngk
- **How much does it cost?** ¥9756 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/128427932-ngk-spark-plug-lfr6a-6668-pack-of-4-watercraft-fx)

## 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

- • **Optimized Spark Gap:** 0.9mm gap calibrated for peak performance and fuel efficiency 📏
- • **Perfect Fit Guarantee:** 26.5mm reach and 16mm hex size ensure seamless installation on your watercraft 🔧
- • **Trusted Brand Quality:** NGK’s copper core spark plugs deliver durability and consistent power, backed by stellar reviews ⭐
- • **Reliable Resistor Value:** 5K Ohm resistor reduces electrical noise, protecting your onboard electronics 🔌
- • **Precision Ignition Boost:** Unique V-cut electrode directs spark edgewise for faster, stronger ignition ⚡

## Overview

The NGK LFR6A 6668 spark plug pack of 4 features a unique V-cut center electrode for faster spark development, a 26.5mm reach and 16mm hex size for perfect watercraft fit, and a precise 0.9mm gap to maximize ignition efficiency. With a 5K Ohm resistor to minimize electrical interference and a durable copper core, these plugs are engineered for reliable, high-performance ignition in watercraft engines.

## Description

Genuine 4 pack NGK V-Power LFR6A 6668 Spark Plug

## Features

- NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching
- Brand new
- NGK Spark Plugs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PGPVQFL |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #32,375 in Automotive ( See Top 100 in Automotive ) #194 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Customer Reviews | 4.7 out of 5 stars 294 Reviews |
| Gap Size | 0.9 millimeters |
| Included Components | 6668 |
| Item Weight | 7.68 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | LFR6A-6668 |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Model Number | 6668 |
| Number of Items | 1 |
| Number of Packs | 4 |
| OEM Equivalent Part Number | LFR6A-6668 |
| Thread Size | M |
| Top Material Type | copper |
| UPC | 087295176016 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** NGK
- **Core Material:** Copper
- **Thread Size:** M
- **Top Material Type:** copper
- **Vehicle Service Type:** Car, Truck

## Images

![NGK Spark Plug LFR6A 6668 (Pack of 4) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm - Image 1](https://m.media-amazon.com/images/I/61ldxKzBdCL.jpg)

## Frequently Bought Together

- NGK Spark Plug LFR6A 6668 (Pack of 4) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm
- OEM Yamaha Oil Filter Element Assy; Oil Cleaner 69J-13440-04-00; 69J-13440-03-00, 69J134400400
- Yamaha New OEM WaveRunner Boat Oil Gallon 10W-40 4W WATERCRAFT LUB-10W40-WV-04

---

## 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.jp/products/128427932-ngk-spark-plug-lfr6a-6668-pack-of-4-watercraft-fx](https://www.desertcart.jp/products/128427932-ngk-spark-plug-lfr6a-6668-pack-of-4-watercraft-fx)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-16*