Description
297656 Spark Plug – 12 mm Thread
Description
A genuine 12 mm spark plug approved for use in Rotax 912, 912ULS, 912iS, 914, and compatible 582 engines. This plug is pre-gapped for aviation use and ensures smooth combustion, reliable starts, and consistent ignition performance in dual-spark systems.
Key Features
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OEM-approved part (Rotax Part No. 297656)
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Designed for Rotax 4‑stroke and select 2‑stroke engines with 12 mm plug threads
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Supplied pre-gapped and ready to install
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Fully compatible with dual-ignition systems
Benefits
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Promotes clean, efficient combustion with stable spark under all operating conditions
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Prevents misfire and plug mismatch issues in dual-spark systems
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Replaces earlier plug variants with a single, standardized part
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Designed to meet Rotax’s strict ignition system performance requirements
Application Notes
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Use only matching spark plugs across all cylinders to maintain ignition timing balance
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Suitable for 912UL, ULS, iS, 914, and 582 engines using 12 mm plug ports
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Install using the correct torque setting: 16 Nm on a cold engine
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Replace at service intervals or if fouling, cracking, or electrode wear is observed
