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⚡ Ignite your ride with precision and power — don’t get left in the cold!
The NGK LMAR8BI-9 Laser Iridium spark plug features a laser-welded ultra-fine iridium center electrode that delivers superior ignition performance, significantly improving cold starts and combustion efficiency. Designed for motorcycles, it offers up to three times longer service life than standard plugs, reduces fuel consumption, and lowers emissions, making it the go-to choice for riders seeking durable, high-performance ignition technology trusted by leading manufacturers worldwide.




| ASIN | B06X9CKC1N |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 175,486 in Automotive ( See Top 100 in Automotive ) 868 in Car Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Motorcycle |
| Core Material | Iridium |
| Core material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 157 Reviews |
| EU Spare Part Availability Duration | 10 Years |
| Gap Size | 16 Millimeters |
| Global Trade Identification Number | 00087295919095 |
| Included Components | nothing |
| Item Type Name | NGK LMAR8BI-9 IRIDIUM Spark Plug |
| Item Weight | 0.02 Kilograms |
| Manufacturer | NGK |
| Manufacturer Part Number | LMAR8BI-9 |
| Manufacturer Warranty Description | producer |
| Model Number | LMAR8BI-9 [ 91909 ] |
| OEM Equivalent Part Number | LMAR8BI-9 |
| Thread Size | RM |
| Thread size | RM |
| Top Material Type | Iridium |
| Top material type | Iridium |
| UPC | 779420925391 087295919095 |
| Unit Count | 1.0 count |
| Vehicle service type | Motorcycle |
A**R
High quality long lasting plug!
Why did you choose this product over others?: I wanted a 'long lasting high performance plug for my Thruxton R and this appeared to fit the bill! I changed several things at once (stale fuel, redex, plugs, air filter so it's not possible to say I 'noticed a marked improvement' just because of this!
M**G
Super Plugs.👍👍
I got fed up keep changing plugs on a Yamaha MT07 Tracer. Every time you have to change the plugs you have to half strip the bike. 😖😖😖. So now I have these plugs fitted which should last at least THREE +times longer. 👍👍👍.
L**W
Durability top specification
Have used before very good product lasts longer than original plugs, engine fire's up first time not missed a beat in years
N**N
already assembled & perform excellent
Packaging could be better, but still, the plugs arrived undamaged.
A**O
perfecto
perfecto pero algo caro
F**I
Modelo
La compré para la CFMoto 450 MT y le quedó perfectamente.
A**E
Iridium für meine Honda SH350i
Die NGK Iridium Zündkerze überzeugt durch ihre erstklassige Verarbeitung und die gewohnt hohe Qualität des Herstellers. Iridium-Zündkerzen wird allgemein eine effizientere und stabilere Funkenbildung im Vergleich zu herkömmlichen Zündkerzen nachgesagt, was sich positiv auf die Verbrennung auswirken kann. In der Praxis arbeitet die Zündkerze absolut zuverlässig und erfüllt ihren Zweck einwandfrei. Der Motor läuft sauber und ohne Auffälligkeiten. Ob sich darüber hinaus spürbare Veränderungen im Fahrverhalten ergeben, lässt sich subjektiv schwer beurteilen – funktional gibt es jedoch keinerlei Kritikpunkte. Fazit: Hochwertige Zündkerze mit zuverlässiger Leistung und langer Lebensdauer. Eine klare Empfehlung für alle, die auf Qualität setzen.
R**O
Ok
Molto Buona , un po cara
Y**5
Bon prix, adaptée pour tenere 700 2019
Parfait pour remplacer mes bougies classiques de ma tenere 700 2019 Fonctionne parfaitement
Trustpilot
3 weeks ago
1 day ago