NGK CR7EIX Iridium IX Spark Plug (7385) – Royal Enfield Interceptor 650 & Continental GT 650 (Set of 2)

Unleash the full performance of your Royal Enfield 650 Twin with the NGK CR7EIX Iridium IX Spark Plug (Part No. 7385), the official NGK-recommended upgrade for both Interceptor 650 and Continental GT 650.

Featuring a 0.6 mm fine-wire Iridium center electrode, CR7EIX ensures lightning-fast ignitability, sharper throttle response, and smoother idle. The tapered ground electrode reduces quenching, while the copper core provides superior heat dissipation under long rides and high-load touring. Royal Enfield specifies a spark plug gap of 0.7–0.8 mm; NGK CR7EIX ships at ~0.8 mm, making it a direct-fit upgrade with no modification needed.

Built with trivalent anti-corrosion plating, installation and removal are effortless, while long service life ensures consistent performance over thousands of kilometers. Trusted by riders worldwide, NGK Iridium IX plugs offer better cold starts, reduced fouling, more efficient combustion, and improved mileage—perfect for city rides, highway touring, or spirited GT runs.

⚡ Sold as a set of 2 plugs (one per cylinder), precision-matched for your twin-cylinder engine. Choose NGK Iridium IX and experience what your 650 Twins were truly built for.

🔹 Key Features

• Genuine NGK Iridium IX (CR7EIX, 7385) – OEM verified for RE Interceptor 650 & GT 650.

• Set of 2 plugs – twin-cylinder ready (LH + RH).

• Fine-wire 0.6 mm Iridium tip – stronger sparks, longer life.

• Correct spec – M10 x 1.0 thread, 19 mm reach, 16 mm hex, resistor type.

• Pre-gapped ~0.8 mm – matches RE 0.7–0.8 mm OE spec.

• Improves throttle response & acceleration – dyno-proven ignitability.

• Better fuel efficiency & cold starts – ideal for Indian traffic + highways.

• Anti-corrosion plating – easy install/removal, reliable service life.

• Trusted worldwide – NGK is #1 spark plug brand for performance bikes.

🔹 FAQs 

Q1: Is NGK CR7EIX compatible with Interceptor 650 BS6?
✅ Yes—CR7EIX is listed by NGK for both BS4 and BS6 Interceptor 650 & Continental GT 650.

Q2: How many plugs do I need?
✅ Two. The 650 Twins are parallel twin engines—this set includes both plugs.

Q3: Do I need to regap them?
❌ No. They come pre-gapped ~0.8 mm, matching RE’s 0.7–0.8 mm OE spec.

Q4: What’s the service life compared to stock?
✅ NGK Iridium IX lasts significantly longer than OE copper plugs, with consistent sparks and reduced fouling.

Q5: Will these improve mileage or performance?
✅ Yes—expect better cold starts, smoother mid-range throttle, more efficient combustion, and improved mileage.