Description
NGK Suppressed Spark Plug Cap for Rotax Engines
Description:
A high-quality resistor-type spark plug cap designed for use with NGK spark plugs in Rotax 912 and 914 series engines. This cap includes built-in suppression to reduce electromagnetic interference and provide consistent, reliable ignition.
Key Features:
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Built-in resistor to reduce radio and instrument interference
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Compatible with threaded NGK plugs, as used in standard Rotax installations
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Durable silicone housing for excellent heat resistance and longevity
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Firm snap-on fit ensures secure connection under vibration and thermal expansion
Benefits:
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Maintains stable ignition performance in demanding flight conditions
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Helps protect avionics by suppressing electrical noise
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Resists cracking, arcing, and heat damage over time
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Easy to install during regular inspection or maintenance intervals
Application Notes:
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Suitable for Rotax 912, 912UL, 912ULS, and 914 engines
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For best results, replace the spark plug wire and cap as a single assembly
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Always ensure the plug terminal nut is installed if required by the cap design














