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⚡ Ignite Performance, Slash Downtime, Own the Road!
The NGK LMAR8BI-9 Laser Iridium spark plug features a laser-welded iridium center electrode that extends service life up to three times longer than standard plugs. Designed for motorcycles, it optimizes ignition for efficient fuel use and reduced emissions, backed by a strong 4.7-star rating and NGK’s 10-year spare part availability.




| ASIN | B06X9CKC1N |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 157,226 in Automotive ( See Top 100 in Automotive ) 790 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 153 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.
Trustpilot
1 month ago
3 weeks ago