



⚡ Spark your ride to life with NGK – where power meets precision!
The NGK 3981 Spark Plug (model BR9EIX) is a premium ignition component crafted in Japan, designed to deliver reliable, high-voltage sparks that improve engine start-up and performance. Lightweight and compact, it supports long-lasting durability and is highly rated by users for enhancing cold start reliability, making it a top choice for automotive and motorcycle enthusiasts.




| ASIN | B000BYB87Y |
| Best Sellers Rank | 34,452 in Automotive ( See Top 100 in Automotive ) 140 in Car Spark Plugs |
| Brand | NGK |
| Customer Reviews | 4.6 4.6 out of 5 stars (880) |
| Date First Available | 20 Sept. 2004 |
| Exterior | Painted |
| Item Weight | 55 g |
| Item model number | BR9EIX |
| Manufacturer | NGK |
| Manufacturer part number | BR9EIX |
| Model | BR9EIX |
| OEM Part Number | 3981 |
| Position | Unknown |
| Product Dimensions | 12.7 x 12.7 x 3.3 cm; 55 g |
| Safety rating | NÃO APLICÁVEL |
N**R
Spark plug
Brilliant plug brilliant company delivery outstanding
S**1
Brlliant!!
Got this for a KTM DUKE 125. No more cold start issues! Great plug recommended! Also I think they last for a long while only done 5000 miles so far though.
A**U
top results
An excellent spark plug. They converted my 31 year old Yamaha XS 400SE from being a pig to start to jumping into life at the first push of the starter. Highly recommended.
B**0
STRESS FREE BUYING
Good price, fast delivery, painless from start to finish
M**L
Five Stars
Good price.
N**N
Five Stars
fab, would use again
P**B
Good
Good product and price .
H**Y
Good
Good
J**L
Ngk iridium spark plugs are really making a difference especially on small two stroke engines!
R**D
As described
C**U
Très bon rapport qualitée prix.
A**O
Perfetto per il mio motorino.. ottimo
C**S
Muy buena. se la e puesta en un motor polini de un paramotor y la diferencia es brutal.no vuelvo a poner una normal y eso que antes tenia una de la misma marca tanto la ngk francesa como la japonesa nunca e tenido ningun problema van muy bien pero esa es una pasada.se nota mucho relentin mas estable y mucho mas potencia de cv.y de empuje. coje mas revoluciones y mas nervio.no se si se notara en otros motores pero el mio es un 110 cc.21cv dos tiempos.marca polini.esta recien echo el motor. todo nuevo y rodaje bien echo.y ahora e puesto esa bujia y buffff.hay mucha diferencia.recomiendo 100x100.