NGK Laser Platinum Spark Plug for Volkswagen Beetle, Jetta, and Rabbit (2005–2009)

NGK part 6737 is a Laser Platinum spark plug, NGK type PZFR5Q-11, that lights the air-fuel charge in 2005–2009 Volkswagen Beetle, Jetta, and Rabbit engines. Both firing surfaces are platinum. A laser-welded platinum tip sits on the fine-wire center electrode, and a platinum disc is welded to the back of the ground electrode. NGK credits that pairing with a slow wear rate, long life, stable idle, and resistance to fouling. The shell has trivalent metal plating that resists corrosion and seizing, and NGK rates the plug as OE quality. This version is made in the United States.

This NGK spark plug carries a 24-month or 24,000-mile warranty.

Volkswagen supplied this plug as 101905600C, and it also matches Volkswagen numbers 101905600 and 101905601F. NGK uses PZFR5Q-11, PZFR5J11, and 7743 for the same plug, so an old plug stamped with any of those codes is the one this replaces. It uses an extended-projection tip in heat range 5, a solid terminal, and a gasket seat against the cylinder head. A spark plug fires the ignition coil's high-voltage pulse across its gap to start combustion in each cylinder.

Technical Details

• Manufacturer: NGK; part number 6737, NGK type PZFR5Q-11
• Design: Laser Platinum, platinum center and ground electrodes
• Thread: 14 mm diameter, 1.25 mm pitch, 19 mm (3/4 in) reach
• Seat and hex: gasket seat, 5/8 in (16 mm) hex, solid terminal
• Gap: 0.043 in (1.1 mm); 1.0 mm fine-wire center electrode
• Heat range 5, extended projection
• Made in the United States
• Warranty: 24 months or 24,000 miles

Installation & Tuning Notes

Tighten this plug to 18–25.3 lb-ft in a cast-iron head or 18–21.6 lb-ft in an aluminum head. A 5/8 in (16 mm) plug socket fits the hex.

Common Questions

What symptoms point to worn spark plugs?
Misfiring, a check engine light, hesitation, loss of power, and poor fuel economy are the common signs. Replace plugs at Volkswagen's suggested service interval.

What gap does this plug use?
NGK specifies a 0.043 in (1.1 mm) gap.

Which Volkswagen part numbers does it match?
It corresponds to Volkswagen 101905600C, 101905600, and 101905601F.

PMB carries NGK ignition parts for the water-cooled Volkswagens it supports.

Fitment & Compatibility

Check the fitment table below for your Volkswagen. PMB can confirm fit by VIN if you send it with your order question.