NGK Laser Iridium Spark Plug SILMAR8A9S for HONDA CRF 250, CRF 450 L, XL 750 TRANSALP, XL 750 TRANSALP E-CLUTCH 2019-2026

NGK offers this spark plug for HONDA CRF 250, CRF 450 L, XL 750 TRANSALP, XL 750 TRANSALP E-CLUTCH 2019-2026. On every turn (two-stroke) or every other turn (four-stroke), the ignition sends a high voltage to the plug: a spark jumps between its electrodes and ignites the mixture in the cylinder.

Why replace the spark plug?

The benefits:

• A new plug gives a strong spark: easier starting, a smoother engine, fewer misfires.
• An inexpensive part that is quick to change: it is one of the first things to check when the engine starts or runs badly.
• Iridium version: a steadier spark and a longer life than a standard plug.

Why choose NGK?

NGK, the Japanese manufacturer founded in 1936 with roots in the ceramics industry, is the leading original-equipment spark plug supplier; its plug caps contain a ceramic resistor that suppresses interference without affecting how the engine runs.

When should you replace this part?

Rounded or eroded electrodes, black or oily deposits, a cracked insulator, hard starting or misfires under acceleration: replace the plug.

Specifications and fitting tips

• Sparkplug type: Laser Iridium
• Connection Type: Solid terminal nut
• Laser welded Iridium center electrode tip
• Platinum disc welded to backside of ground electrode providing longer life
• Manufacturer part number: 90992

Cross-Mania tip: Screw it in by hand first on a clean thread, tighten it to the torque or angle given by the manufacturer and push the plug cap fully home until it clicks.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HONDA CRF 250 2024
HONDA CRF 450 L 2019
HONDA XL 750 TRANSALP 2026
HONDA XL 750 TRANSALP 2025
HONDA XL 750 TRANSALP 2024
HONDA XL 750 TRANSALP 2023
HONDA XL 750 TRANSALP E-CLUTCH 2026