NGage BNL8RTII-9 Double Iridium Spark Plug for BMW G 310 Series, KTM 250 Duke Gen 3, Husqvarna 250 (2025) & TVS 310 RR

The NGage BNL8RTII-9 Double Iridium Spark Plug is a model-specific replacement spark plug designed for modern BMW, KTM, Husqvarna, and TVS motorcycles. This BMW motorcycle spark plug by NGage is manufactured in Japan and is listed by NGage for both BS4 and BS6 compliant motorcycles.

The BNL8RTII-9 Double Iridium Spark Plug is intended as a direct replacement for motorcycles listed in the official NGage compatibility chart. It is engineered to match the ignition system requirements defined for each approved model. This listing applies only to part number BNL8RTII-9 and does not include alternate heat ranges or variants.

Double Iridium Construction

The NGage BNL8RTII-9 Spark Plug uses iridium on both the center electrode and the ground electrode. NGage classifies this as Double Iridium construction. Iridium is selected in spark plug manufacturing for its high melting point and resistance to erosion during repeated ignition cycles.

In high-compression and fuel-injected engines, electrode durability is required for maintaining consistent spark formation. The double iridium layout is commonly used in tightly controlled combustion systems. NGage does not publish electrode dimensions, gap data, or service interval claims for this part number. The classification here follows NGage’s official product definition.

Application Across Multiple Motorcycle Platforms

The NGage BNL8RTII-9 Double Iridium Spark Plug is specified for use across several engine platforms. Despite differences in displacement and cylinder setup, the motorcycles listed below share ignition requirements compatible with BNL8RTII-9.

This spark plug is approved by NGage for selected BMW 310, BMW 900, BMW 1000, KTM 250, Husqvarna 250, and TVS 310 platforms. Compatibility must always be confirmed before installation.

BMW Motorcycle Spark Plug Compatibility

As per NGage’s official application chart, the BMW motorcycle spark plug BNL8RTII-9 is listed for these BMW motorcycles:

BMW G 310 RR
BMW G 310 GS
BMW G 310 R
BMW S 1000 RR
BMW S 1000 XR
BMW S 1000 R
BMW R 12
BMW R 12 9T
BMW R 1200 GS
BMW R 1300 GS
BMW F 900 GS Adventure
BMW F 900 GS

These models cover multiple engine families. NGage specifies the same part number for all motorcycles listed above.

KTM, Husqvarna and TVS Compatibility

The NGage BNL8RTII-9 Double Iridium Spark Plug is also listed for:

KTM 250 Duke (Gen 3)
Husqvarna 250 (2025 models)
TVS 310 RR

These motorcycles use modern fuel-injected engines with updated ignition systems. NGage confirms compatibility through its part-number chart.

BS4 and BS6 Compatibility

NGage states that the BNL8RTII-9 Spark Plug is compatible with both BS4 and BS6 motorcycles. This allows the same spark plug part number to be used across pre-BS6 and post-BS6 production years, provided the motorcycle appears in the compatibility listing.

No claims are made about fuel efficiency, emission improvement, or power gains. This spark plug is supplied as a specification-matched replacement component.

Manufacturing Origin

The NGage BNL8RTII-9 Double Iridium Spark Plug is made in Japan. This detail appears on NGage packaging. No additional manufacturing certifications are published for this part number.

Intended Use

This NGage spark plug is intended for scheduled maintenance replacement. Install it per the motorcycle manufacturer’s recommended service intervals. It suits normal road use on approved motorcycles.

The BNL8RTII-9 is not a racing-only or tuning component. It is supplied as a standard replacement spark plug where NGage’s compatibility chart specifies this part number.

Installation Guidelines for BMW Motorcycle Spark Plug

Install the NGage BNL8RTII-9 Spark Plug only on BMW motorcycles listed in the compatibility section. Installation should be performed on a cold engine. Torque specifications must follow the motorcycle manufacturer’s service manual.

Incorrect spark plug selection can impact engine performance and reliability. Buyers must confirm compatibility before purchase.

What This Listing Includes

1 × NGage BNL8RTII-9 Double Iridium Spark Plug

No alternate heat range or additional components are included.

Frequently Asked Questions

Specifications

Brand: NGage
Part Number: BNL8RTII-9
Spark Plug Type: Double Iridium
Compatibility: BMW, KTM, Husqvarna, TVS (as listed above)
Emission Compatibility: BS4 & BS6
Country of Manufacture: Japan
Application: Motorcycle spark plug replacement

As a final note, this BMW motorcycle spark plug is a reliable choice for replacement where the NGage chart confirms compatibility. Ensure proper installation and maintenance to keep your engine running smoothly with this BMW motorcycle spark plug.