NGK BPR7EIX Iridium IX Spark Plug for Royal Enfield Bullet LB 350 Machismo

The NGK BPR7EIX Iridium IX spark plug is the iridium fitment for the Royal Enfield Bullet LB 350 Machismo — the lean-burn 350. It's the NGK-recommended iridium plug for this engine, a direct OEM-spec replacement.

The 0.6mm fine-wire iridium centre electrode fires a tighter, more focused spark than copper, giving the Machismo easier starts, a steadier idle, and cleaner combustion. Iridium holds the gap far longer than a standard plug, so the spark stays consistent and service intervals stretch out.

Direct-fit, OEM-spec replacement. No tuning changes — just a sharper, longer-lasting spark.

Fitment (NGK-confirmed)

Royal Enfield: Bullet LB 350 Machismo

Riding a different Royal Enfield 350? The STD, UCE and BS6 J-series take different plugs — message us on WhatsApp with your model and year and we'll point you to the right one.

Specifications

• Brand: NGK
• Part Number: BPR7EIX
• Type: Iridium IX Spark Plug
• Centre Electrode: Iridium, 0.6mm fine-wire
• Sold as: Single plug

Key Features

• NGK-recommended iridium fitment for the Bullet LB 350 Machismo
• Easier starts and steadier idle versus a standard plug
• Long service life — iridium holds its gap
• Direct-fit OEM-spec replacement