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










| 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 |
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.
D**N
Honda
Exactly as described Should work perfectly in my Honda 15hp outboard.
W**N
Fits Honda Outboard
They fit my BF20D/BFP20D Honda 20HP Outboard Motor. It Runs Great.
H**S
Completely satisfied
Installed in my Honda outboard. Runs noticeably better.
R**I
It is what it is.
It’s a spark plug, what do you expect me to say. It works!
M**K
What I hoped for
NGK plugs just work well in a Honda engine. It runs like new again!
B**S
Honda 20HP Outboard
Fits my Honda 20HP outboard perfect.
K**R
Ok
Correct one
D**D
Zündkerze passend unter andrem für Honda BF 20D Außenbordmotor.
A**E
Bujía de marca, cumple la descripción. Todo correcto.
S**N
Billigt
D**L
Work as expected
K**I
新品はバッチリです
Trustpilot
5 days ago
1 month ago