NGage B8RII-8 Double Iridium Spark Plug, Universal Fitment
The NGage B8RII-8 is a Double Iridium spark plug made in Japan, compatible with BS-4 and BS-6 vehicles. It fits a wide range of mid-to-large displacement motorcycles across Royal Enfield, Triumph, Kawasaki, Yamaha, Bajaj, Benelli, Harley-Davidson, Suzuki, TVS, Aprilia, Jawa, Yezdi, and Hero platforms.
If your service manual or mechanic specifies B8RII-8 as the correct plug code, this is the exact component.
Technical Specifications
Part Number
B8RII-8
Brand
NGage Powerparts
Series
Double Iridium
Origin
Made in Japan
Thread Diameter
14 mm
Heat Range
8
Electrode Type
Double iridium (iridium centre + iridium ground)
BS Compliance
BS-4 and BS-6 compatible
Supplied As
Single plug
Why Double Iridium
Unlike standard iridium plugs that use iridium only on the centre electrode, the B8RII-8 uses iridium on both the centre and ground electrodes. This means:
Spark erosion is distributed across both electrodes, significantly longer service life
Consistent spark energy throughout the plug's lifespan, not just when new
More reliable cold starts and stable combustion at all RPM ranges
Suitable for high-displacement engines with higher ignition demand
Full Compatibility Reference
fitment guidance available per NGage compatibility data. Always cross-reference against your owner's manual or service documentation before purchase.
Royal Enfield
Himalayan 411
Himalayan 440
Interceptor 650
Continental GT 650
Bear 650
Super Meteor 650
Shotgun 650
Classic 650
Triumph
Tiger 1050
Tiger 1050 Sport
Sprint GT
Speed Triple
Speed Triple 1050
Speed Triple R
Tiger 1200 Explorer
Tiger 1200 XC
Tiger 1200 XR
Tiger Trophy
Kawasaki
Ninja 300
Ninja 250R
Ninja Z250
Z900
Yamaha
YZF R15 (V1, V2, V3 & V4)
MT-15
YZF R3
MT-03
Aerox V2 / NVX 155
Bajaj
Pulsar 200NS Triple Spark (Side Plugs × 2)
Pulsar NS200 Triple Spark (Side Plugs × 2)
Pulsar RS200 Triple Spark (Side Plugs × 2)
Benelli
502 C
TRK 502
TRK 502 X
Leoncino 500
Harley-Davidson
Street 750
Street Rod 750
Suzuki
Suzuki 125 Burgman
Suzuki V-Strom 250
TVS Motor Company
Apache RTR 160
Apache RTR 180 ABS
Aprilia
SR 125
SR 150
Jawa
Forty Two
Bobber 42
350
42 FJ
Yezdi
Roadster
Adventure
Scrambler
Hero MotoCorp
Xpulse 200 2V / 200T
Compatibility is specification-based per NGage fitment data. Verify against your service manual before ordering. Bajaj Pulsar NS200, RS200, and 200NS Triple Spark models require 2 units (side plug positions).
Installation Notes
Verify pre-set gap against your manufacturer's specification before installation
Tighten to the torque value specified in your service manual
Clean threads before installation; do not over-torque
Bajaj Pulsar NS200 / RS200 / 200NS Triple Spark side plug positions require 2 units per bike
In The Box
1 × NGage B8RII-8 Double Iridium Spark Plug
Terminal Type
This plug is supplied with a bare threaded terminal stud. That is how it leaves the factory, and no terminal nut is fitted.
A plug cap that screws onto the thread fits as supplied. If your cap seats on a terminal nut instead, a standard screw-on spark plug terminal nut can be fitted to the stud.
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