Description
831950 Crankshaft Oil Seal – Genuine Rotax (P/N 831950)
Maintain optimal engine performance by replacing worn seals with the genuine Rotax 831950 crankshaft oil seal. This essential seal ensures oil retention at the gearbox end of the crankshaft—critical for maintaining proper lubrication and preventing leaks in Rotax 2‑stroke engine gearboxes.
✅ Key Features
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OEM Rotax Quality: Manufactured to strict factory standards for correct fitment and durability
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Precision Sealing: Designed to seal the gearbox/crankcase interface, preventing oil weepage around the crankshaft
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Durable Construction: High-grade elastomeric material resists heat, oil, and gearbox contaminants for long service life
Technical Specifications
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Part Number: 831950
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Dimensions: 35 mm inner diameter × 72 mm outer diameter × 7.5 mm thickness (standard Rotax 2-stroke crankshaft geometry)
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Application: Seals crankshaft on Rotax 447, 503, 582, 618 etc., 2-stroke engines as used in light aircraft, microlights, and kart engines
️ Application & Fitment
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Essential during crankcase maintenance, or if oil leakage is observed near the crankshaft
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Recommended for scheduled maintenance or post-overhaul rebuilds to ensure a leak‑free seal surface
What’s Included
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1x Genuine Rotax 831950 Crankshaft Oil Seal
