NGK 3419 Spark Plug

NGK Iridium IX Spark Plug for Volkswagen Beetle

NGK Iridium IX Spark Plug 3419 is built for Volkswagen Beetle applications from 1954-1979 with the specified gap and heat range requirements. It combines an iridium center electrode with a copper core and a nickel ground electrode to support consistent ignition performance in classic air-cooled engine service.

Key Features

• NGK Iridium IX Spark Plug, part number 3419
• Iridium center electrode tip with copper core for stable spark delivery
• Nickel ground electrode with taper-cut tip design
• Pre-gapped at .032 inch
• 5000 ohm resistance and removable nut terminal
• 14 mm thread diameter, .5 inch reach, flat seat
• Manufacturer heat range 6

Product Details

NGK’s Iridium IX line focuses on precise ignition performance with a fine iridium center electrode and durable construction for demanding engine environments. This spark plug is identified as BR6HIX and cross-references DENSO Auto Parts 5359 and 5378 for the same application. For Volkswagen Beetle owners searching for a BR6HIX spark plug or NGK 3419 replacement, this part matches the listed fitment and specifications for 1954-1979 models.

Compatible With Volkswagen Beetle applications, this spark plug supports reliable combustion in engines that require a .024 inch gap per the fitment note. It is a direct match for classic Beetle ignition service where correct thread size, reach, seat type, and heat range matter.

Common Issues This Part May Address

• Hard starting caused by worn or inconsistent spark plugs
• Misfire from degraded electrode materials
• Rough idle related to weak ignition output
• Reduced throttle response from poor spark quality
• Maintenance replacement for aging Volkswagen Beetle ignition service

Installation Notes and Tips

Verify the engine’s required gap before installation and confirm the plug matches the listed .024 inch fitment note for the Volkswagen Beetle application. Check thread diameter, reach, seat type, and heat range against the vehicle’s service specifications before tightening. Use proper spark plug service procedures to avoid cross-threading and to ensure correct torque.

Quality Assurance

NGK is a long-established OE supplier and manufacturer with broad coverage across automotive, motorcycle, marine, and small engine applications. The brand’s North American manufacturing and distribution network supports consistent product availability and OE-level production standards.