Genuine NGK Iridium IX spark plugs for selected Royal Enfield UCE 350cc and 500cc twin-spark engines. Suitable for Classic 350 BS3/BS4, Bullet 350 BS3 and Thunderbird 500 BS3. Twin-spark application — 2 plugs required per motorcycle.

Fitment

• Royal Enfield Classic 350 — BS3 / BS4 UCE
• Royal Enfield Bullet 350 — BS3 UCE
• Royal Enfield Thunderbird 350 — BS3 / BS4 UCE
• Royal Enfield Trials 350 — applicable UCE versions
• Royal Enfield Classic 500 — BS3 UCE
• Royal Enfield Bullet 500 — BS3 UCE
• Royal Enfield Thunderbird 500 — BS3 UCE

Application: UCE Twin Spark
Quantity: 2 spark plugs per motorcycle
Plug configuration: Primary + Secondary

This listing is only for the abovementioned UCE models application. It should not be used to cover the newer J-Series 350 engines, which require separate fitment verification.

Optimized for Modern E20 Fuel

Stronger Spark • Cleaner Combustion • Smoother Performance • Longer Service Life

Compatibility:

• Royal Enfield Bullet 350 UCE Twin Spark
• Royal Enfield Classic 350 UCE Twin Spark
• Royal Enfield Thunderbird 500 UCE Twin Spark

Frequently Asked Questions

How often should I replace NGK Iridium spark plugs?

Typically every 40,000–80,000 km depending on riding conditions and manufacturer recommendations.

Can I use NGK Iridium spark plugs with E20 ethanol-blended petrol?

Yes. As E20 ethanol-blended fuel becomes more common, maintaining efficient combustion is increasingly important. NGK Iridium spark plugs produce a stronger and more consistent spark, helping promote cleaner combustion, smoother performance and reliable ignition with modern E20-compatible engines.

Will an iridium spark plug increase mileage?

It helps maintain efficient combustion and smoother running, which may improve fuel efficiency compared to worn plugs.

Will it fit my motorcycle?

Please refer to the compatibility list or contact us on WhatsApp for assistance.

Are these genuine NGK spark plugs?

Yes, we supply genuine products sourced through trusted channels.

Spark Plug Configuration

• Iridium IX plugs
• Quantity: 1

Features

• Genuine NGK Iridium IX spark plug
• Faster and more efficient combustion
• Improved throttle response
• Better fuel economy. Suitable for E20 ethanol-blended fuel
• Smooth idle and acceleration
• Long service life compared to conventional plugs
• Reduced misfires
• Workshop-tested fitment
• Better cold starting and stable idling

Package Includes :

• 1 × NGK IX Spark Plug

Total Quantity: 1 Spark Plug

Why Upgrade to NGK Iridium?

NGK Iridium plugs feature an ultra-fine iridium centre electrode that provides a stronger spark, improved combustion and consistent engine performance. Their superior durability and resistance to wear make them ideal for riders seeking reliability and long replacement intervals.

Also bought together >> Air & Oil Filter

🔧 Workshop-Tested Fitment

Every spark plug supplied by Top Gear Automotives is verified for compatibility and tested through real-world workshop experience. Need help with fitment? Contact us on WhatsApp before ordering.

🔧 Installation Support in Port Blair

Also available for same-day professional installation at our workshop in Aberdeen Bazaar, Port Blair, Sri Vijaya Puram, Andaman & Nicobar Islands. Bring your motorcycle or scooter and get it fitted by our technicians without waiting for delivery.

Visit our workshop in Port Blair:

• ✔ Quick installation
• ✔ Function testing

👉 Takes just a few minutes to install. Book installation service now >>

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Local Customers in Andaman & Nicobar Islands

If you’re in Sri Vijaya Puram (Port Blair), Aberdeen Bazar, Garacharma, Bathubasti, Dollygunj, Junglighat, Delanipur, Haddo, Phoenix Bay, or anywhere in the Andaman & Nicobar Islands, you can visit Top Gear Automotives for professional spark plug replacement, inspection and motorcycle servicing by trained technicians.

Need fitment support? Book your motorcycle service online or visit our workshop in Aberdeen Bazar, Sri Vijaya Puram >>>>>

✔ Shipping available across India and Andaman & Nicobar Islands including Port Blair, Garacharma, Bathubasti, Junglighat, Wimberlygunj, Ferrargunj, Havelock, Nicobar, Diglipur, Rangat, Mayabunder, Kadamtala, Hutbay, Campbell Bay and more.