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

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

Name: NGK Spark Plug, NGK Standard, 10 mm Thread, 0.749 in Reach, Gasket Seat, Stock Number 6689, Resistor, Each
Brand: Ngk
SKU: 16983392
Price: 44.89 PAB
Availability: InStock
Rating: 4.769230769230769 (13 reviews)

Product ID: 16983392

Details

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

⚡Built-in resistor for stable, interference-free ignition

🔥98% pure copper core for superior heat dissipation

🔩10 mm cold-rolled threads prevent cross-threading

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In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

DURABILITY MEETS INNOVATION - High-grade alumina silicate ceramic insulator offers superior strength and efficient heat transfer.
MAINTENANCE FREE EXCELLENCE - Trivalent plating eliminates the need for anti-seize, saving you time and hassle.
RELIABLE IGNITION EVERY TIME - Copper core maximizes heat dissipation to prevent overheating and ensure consistent starts.
TRUSTED BY PROS LOVED BY ENGINES - Universal fit with a 4.7-star rating and proven compatibility with Honda and UTV engines.
PRECISION FIT FOR PEAK PERFORMANCE - 10 mm cold-rolled threads guarantee damage-free installation and a perfect seal with gasket seat design.

The NGK Standard Spark Plug (Stock #6689) features a 98% pure copper core for enhanced heat dissipation, a durable alumina silicate ceramic insulator, and cold-rolled 10 mm threads to prevent cross-threading. Designed with a gasket seat and built-in resistor, it ensures reliable ignition and interference-free performance. Trusted by professionals and compatible with a wide range of UTV and small engine applications, this spark plug delivers consistent starts and long-lasting durability.

Specifications

ASIN	B001RMAEIS
Automotive Fit Type	Universal Fit
Best Sellers Rank	#73,398 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Performance Spark Plugs #1,293 in Automotive Ignition Parts
Brand Name	NGK
Compatible with Vehicle Type	UTV
Core Material	Copper
Customer Reviews	4.7 4.7 out of 5 stars (256)
Gap Size	0.75 Inches
Global Trade Identification Number	00087295166895
Included Components	NGK 6689
Item Type Name	SPARK_PLUG
Item Weight	0.03 Kilograms
Manufacturer	NGK
Manufacturer Part Number	CR5EH-9
Manufacturer Warranty Description	Manufacturer Warranty
Model Number	6689
OEM Equivalent Part Number	6689
Thread Size	10 mm
Top Material Type	Nickel
UPC	087295166895
Unit Count	1.0 Count

Reviews

D**.

Fits my Honda BF 9.9 perfectly.

This is a stock replacement for the existing plugs. I have used NGK plugs in several different engines and never had a issue.

10.11.2025

D**N

Honda

Exactly as described Should work perfectly in my Honda 15hp outboard.

12.09.2025

W**N

Fits Honda Outboard

They fit my BF20D/BFP20D Honda 20HP Outboard Motor. It Runs Great.

1.07.2021

H**S

Completely satisfied

Installed in my Honda outboard. Runs noticeably better.

18.04.2021

R**I

It is what it is.

It’s a spark plug, what do you expect me to say. It works!

10.10.2020

M**K

What I hoped for

NGK plugs just work well in a Honda engine. It runs like new again!

20.08.2019

B**S

Honda 20HP Outboard

Fits my Honda 20HP outboard perfect.

27.10.2020

K**R

Correct one

15.02.2026

D**D

Zündkerze passend unter andrem für Honda BF 20D Außenbordmotor.

28.08.2025

A**E

Bujía de marca, cumple la descripción. Todo correcto.

26.02.2023

S**N

Billigt

27.02.2023

D**L

Work as expected

19.01.2019

K**I

新品はバッチリです

5.12.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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