The Oil Seal for Hatz 1B40 Engines is a genuine Hatz part (OEM No. 50479500) designed to keep engine oil where it belongs and protect internal components from dirt and moisture. Built from durable, oil-resistant materials, it provides a reliable seal at rotating shafts to support smooth running and reduce wear. Precision dimensions of 35mm 47mm 7mm ensure the correct fit in specified housings. It is suitable for single-cylinder diesel engines in compact machinery and plant, including the Hatz 1B40 and 1B50. This direct-fit component helps maintain lubrication, minimises leaks, and supports consistent engine performance over long service intervals. A practical choice for routine maintenance or rebuilds where dependable sealing is required.

Key Features:
– Genuine Hatz part for assured compatibility and performance (OEM 50479500)- Dimensions: 35mm 47mm 7mm for a precise, stable fit- Suited to Hatz 1B40 and 1B50 single-cylinder diesel engines- Oil-resistant construction for durability and long service life- Helps prevent oil loss and reduces contaminant ingress- Accurate fit supports consistent sealing under vibration and load- Designed for easy installation during servicing or overhaul- Maintains engine efficiency and helps reduce unplanned downtime- Reliable choice for preventative maintenance schedules

Typical Applications:
Used at rotating shaft locations in Hatz 1B40 and 1B50 engines to retain oil within the crankcase and exclude dirt and water. Common in compactors, generators, pumps, welders, and light plant where dependable sealing protects bearings and internal parts. Suitable for routine service replacement, fault rectification after leakage, or as part of a full engine rebuild.

Also known as:
Crankshaft seal, shaft seal, rotary shaft seal, radial shaft seal, lip seal, seal ring, engine gasket (oil), rotary oil ring, radial oil ring.

Fits Models:
1B40, 1B50

Alternate Part Numbers:
50479500

Product Specifications