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TUNE-UP GAUGE - Kastar

Part #: 40A

The Kastar 40A Tune-Up Gauge is a precision instrument engineered for professional automotive and industrial technicians. Designed for accuracy and durability, this American-made tool provides essential measurements for critical engine adjustments, ensuring optimal performance and reliable maintenance. It is a versatile, all-purpose tune-up tool that meets the rigorous demands of professional workshops.

Key Features

  • Comprehensive Blade Set: Includes 12 straight steel blades specifically for standard ignition systems, ranging in size from .010" to .026".
  • Non-Magnetic Brass Blades: Features 6 non-magnetic brass blades, ideal for Chrysler ignition systems, with sizes from .025" to .045".
  • Precision Measurements: Each blade is accurately sized and clearly marked to facilitate precise gapping and clearance settings.
  • Durable Construction: Manufactured in the USA, ensuring robust construction for extended service life in demanding workshop environments.
  • Integrated Electrode Adjusting Tool: Equipped with a dedicated tool for proper adjustment of spark plug electrodes.

Applications

The Kastar 40A Tune-Up Gauge is an indispensable tool for professional technicians and mechanics performing a variety of tasks, including:

  • Accurately setting spark plug gaps to manufacturer specifications on a wide range of gasoline engines, including those with standard and Chrysler ignition systems.
  • Measuring and adjusting breaker point gaps in traditional ignition systems for older vehicles and industrial equipment.
  • Checking valve clearances (where applicable) to ensure proper engine operation.
  • Performing general gap measurements requiring precision for engine diagnostics and maintenance procedures.
Only 2 left in stock - order soon

$8.91

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 444786
  • Shipping Weight: 2.43lbs
  • UPC: 777694000608
  • Manufacturers Part #: 40A
  • Manufactured by: Kastar
  • Also Known As: KH40A

This product was added to our catalog on Sunday 31 May, 2026.

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