Spark plug NGK SILMAR8A9S

Reference 21030461

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Choose a better spark for your motorcycle with the NGK SILMAR8A9S standard-type spark plug, designed for road use.

To unscrew your spark plug, you will need a spark plug wrench.

Spark plug sold individually

40,02 € incl. VAT

instead of 57,17 € incl. VAT

Quantity

Available [15 in stock] Shipped on 6/12/26. , expected delivery date 6/16/26

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Description

Compatible with

NGK standard-type spark plug, designed for road use. These spark plugs ensure optimal combustion of the air/fuel mixture, limiting exhaust system fouling and contributing to reduced pollutant emissions.

To guarantee the reliability and quality of its spark plugs, NGK uses a ceramic insulator, a premium material known for its resistance to heat and wear.

Sold individually – non-contractual photo.

What is a motorcycle spark plug used for?

As the first component involved in combustion in a gasoline engine, the spark plug plays an essential role since it is responsible for igniting the air/fuel mixture in the engine’s combustion chamber. This combustion generates the power needed to move the vehicle.

To ensure optimal combustion, the spark must occur when the piston reaches its highest compression point. The quality of this ignition influences many factors affecting riding and the environment, such as performance, engine efficiency, and reduced emissions.

Learn more about the NGK brand

This NGK Iridium spark plug is designed to meet manufacturer specifications and increasingly strict emission standards.

NGK Spark Plug is now the global leader and specialist in ignition and sensors. Worldwide recognized for its expertise and technological innovation, NGK has become a reference for manufacturers, distributors, and repair professionals in the automotive, motorcycle, gardening, and marine sectors.

The NGK range is extremely comprehensive: Iridium, Platinum, and Racing spark plugs. The choice is wide and perfectly suited to different uses, whether for mechanical optimization or replacing original spark plugs with higher-performance components.

This product is comptable with:

HONDA	AFRICA TWIN	2024 => 2026+
HONDA	AFRICA TWIN ADVENTURE SPORTS	2024 => 2026+
HONDA	AFRICA TWIN Adventure Sport	2018 => 2019
HONDA	AFRICA TWIN CRF1000L	2016 => 2019
HONDA	AFRICA TWIN CRF 1100 L	2020 => 2023
HONDA	AFRICA TWIN CRF 1100 L ADVENTURE SPORT	2020 => 2023
HONDA	CB 750 HORNET	2023 => 2026+
HONDA	CMX 1100 REBEL	2021 => 2026+
HONDA	CRF 1000 L AFRICA TWIN	2016 => 2019
HONDA	NT 1100	2022 => 2024
HONDA	XL 750	2023 => 2026+