Wilmar Corporation W80540 Spark Plug Gap Gauge

Product Description

The WILMAR CORPORATION W80540 is a coin-style spark plug gap gauge designed to measure and adjust spark plug electrode gaps on gasoline-powered engines. The gauge features a tapered profile that physically adjusts the electrode gap when the plug is drawn across the taper. Easy-to-read markings are stamped into the gauge face for quick reference. It covers SAE measurements from .020 to .100 inches and metric measurements from .5 to 2.5 mm, giving technicians both measurement systems in a single compact tool. Weighing under 1 pound, it is sized to slip into a toolbox or service apron without bulk.

This gauge is suited for automotive, small engine, and light equipment service applications where spark plug maintenance is part of routine tune-up work. It is useful in shop environments, mobile service units, and fleet maintenance programs. The dual SAE and metric scale makes it applicable across domestic and imported vehicle platforms. Technicians who service a wide range of engine types will find a single tool covering both measurement systems reduces the need to switch between gauges during a service call.

Key Features

• Tapered edge physically adjusts electrode gap by drawing the plug across the taper
• SAE range: .020 to .100 inches
• Metric range: .5 to 2.5 mm
• Easy-to-read stamped markings on gauge face
• Compact coin-style form factor fits in a standard tool pouch
• Covers both domestic and imported engine specifications

Compatibility

Designed as a general-purpose spark plug gap gauge suitable for gasoline-powered automotive, small engine, and light equipment applications requiring electrode gap measurement in SAE or metric specifications.

Installation Notes

Spark plug service is typically performed by automotive technicians and small engine mechanics. Always disconnect the ignition system or remove the ignition key before handling spark plugs to prevent accidental engine start. Use the tapered slot to open the gap and a flat feeler gauge or the coin edge to verify final gap measurement before reinstalling the plug. Torque spark plugs to the engine manufacturer's specification using a calibrated torque wrench.