BMW Spark Plug Gap Tool + Feeler Gauge
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Spark Plug Gap Tool & Feeler Gauge — Fits Most BMW Engines
Dial in your spark plug gap accurately before installation with this combination spark plug gap tool and wire feeler gauge. Designed to work with most 10mm, 12mm, 14mm, 16 mm automotive spark plugs, it is compatible with the common spark plug sizes used across a wide range of BMW gasoline engines.
Compatible with popular BMW engines including:
M-Series Engines: M52, M54
N-Series Engines: N20, N26, N51, N52, N54, N55, N63
B-Series Engines: B46, B48, B58
BMW M Engines: S54, S55, S58, S63
And many other BMW gasoline engines using standard 10–16 mm spark plugs.
That makes it a useful addition to the toolbox whether you're servicing an E46, E8X, E9X, F-Series, G-Series, or modern BMW M car.
Correct spark plug gap is especially important on modified and forced-induction BMWs. Higher boost, increased cylinder pressure, different spark plugs, and aftermarket tuning can all change the ideal plug-gap requirement. An incorrect or excessive gap can contribute to spark blowout, hesitation, rough running, or misfires under load.
This compact tool allows you to measure and adjust spark plug gap before installation, eliminating one of the first variables to check when servicing the ignition system or troubleshooting a misfire.
Ideal For
BMW spark plug replacement, upgraded ignition systems, tuned and boosted applications, coil and plug service, preventative maintenance, and misfire diagnostics.
Compatible BMW Engines Include
M52 • M54 • N20 • N26 • N51 • N52 • N54 • N55 • N63 • B46 • B48 • B58 • S54 • S55 • S58 • S63 and many more.
What's Included
One combination spark plug wire feeler gauge and gapping tool.
Compatibility: Designed for most 10–16 mm spark plugs, covering the common spark plug sizes found in BMW gasoline engines.
Note: Always verify the correct spark plug gap for your specific engine, spark plug, tune, and boost level before installation. Modified and forced-induction applications may require a different gap than the factory specification.