NGK Iridium IX Spark Plug BR6HIX for Volkswagen Beetle, Super Beetle, Transporter, Karmann Ghia, Type 3, and Thing (1949–1980)

For air-cooled Volkswagen engines, the NGK Iridium IX BR6HIX is a spark plug with a fine-wire iridium center electrode, made in Japan and matched to VW part number 101905617C. NGK aims it at modified or high-performance engines, or as a step up from stock nickel alloy plugs. The center electrode has a 0.6 mm iridium tip, which keeps the spark stable and the plug durable. Behind the tip sits a 98% pure copper core that carries heat away from the firing end. A tapered cut ground electrode reduces quenching, which helps starting, idling, and throttle response.

NGK spark plugs sold by PMB Performance carry a 24-month / 24,000-mile warranty.

NGK states that iridium is six times harder than platinum and has an extremely high melting point. The shell has trivalent metal plating, which resists corrosion and seizing, so the plug threads in and backs out more easily. That matters in an aluminum cylinder head. For a buyer comparing plugs, the BR6HIX code and the VW cross-reference 101905617C are the two numbers to check. Change plugs at the recommended service interval, and inspect the old ones for warning signs when they come out. NGK has made spark plugs since 1936 under Niterra of Nagoya, Japan.

Technical Details

• Manufacturer: NGK
• NGK part number: 3419
• NGK designation: BR6HIX (Iridium IX)
• VW cross-reference: 101905617C
• Center electrode: 0.6 mm fine-wire iridium tip
• Core: 98% pure copper
• Shell: Trivalent metal plating
• Country of manufacture: Japan
• Warranty: 24 months / 24,000 miles

Common Questions

Is this a stock replacement or a performance plug?
NGK recommends Iridium IX for modified or high-performance applications, or as an upgrade from stock nickel alloy plugs. It still cross-references to VW 101905617C.

What symptoms point to worn plugs?
Misfiring, hesitation, loss of power, and poor fuel economy are the common signs.

Will it seize in the head?
The trivalent metal plating resists seizing and corrosion, which makes installation and removal easier.

PMB Performance has supported air-cooled Volkswagen owners for more than 20 years.

Fitment & Compatibility

Check the fitment table below for the models and years this plug fits. Send us your VIN or chassis number and we will confirm fit before you order.