NGK 6737 Spark Plug

NGK Laser Platinum Spark Plug 6737

NGK Laser Platinum Spark Plug 6737 is an OE-style ignition component built for precise fitment and stable performance in select Volkswagen applications. It uses a platinum center electrode, nickel ground electrode, and a 0.044 in. pre-gap to support consistent spark delivery in the specified Beetle and Jetta models.

Key Features

• Laser Platinum spark plug from NGK
• Platinum center electrode tip with copper core
• Nickel ground electrode with standard tip design
• 0.044 in. pre-gap for listed applications
• 14 mm thread diameter, 0.75 in. reach, flat seat
• 1000 ohm resistance and non-removable nut terminal
• OE-style replacement for select Volkswagen Beetle and Volkswagen Jetta models

Product Line Details

NGK Laser Platinum spark plugs are part of NGK’s OE-focused ignition line, built around factory-style dimensions and materials. This part number, 6737, is identified as PZFR5Q-11 and is specified for vehicles that call for a flat-seat plug with a 5/8 in. hex and manufacturer heat range 5.

Detailed Description

NGK 6737 is a Laser Platinum spark plug engineered for select Volkswagen Beetle and Volkswagen Jetta engines that require the listed gap, reach, and seat configuration. The platinum tip helps maintain electrode durability, while the copper core supports heat transfer and the nickel ground electrode follows the original equipment-style design used in the application. This plug is a direct-fit service part for 2005-2008 Volkswagen Beetle and 2005-2007 Volkswagen Jetta listings shown below.

This part cross-references Airtex Fuel Pumps 6737 for the same application.

What It Is Used For

• Replacing worn spark plugs that cause rough idle
• Restoring ignition performance in hard-start conditions
• Addressing misfire codes tied to plug wear or gap drift
• Improving spark consistency in scheduled tune-up service
• Servicing select Volkswagen Beetle and Volkswagen Jetta ignition systems

Installation Notes and Tips

• Verify engine code and chassis breakpoints before ordering.
• Confirm the specified 0.044 in. gap before installation.
• Use the correct torque procedure for the flat-seat design.
• Inspect ignition coils and plug wells during service to avoid repeat misfire concerns.
• Fits 2008 Volkswagen Beetle, N/A; 2006-2007 Volkswagen Beetle, N/A; 2007 Volkswagen Jetta, N/A; 2005-2006 Volkswagen Jetta, N/A.

Quality Assurance

NGK is a major OE spark plug supplier in North America with decades of automotive manufacturing experience. The brand’s OE legacy and global production network support consistent part quality for service replacement applications.