Description
Overview:
This tapered crankshaft is a non-genuine replacement part for Yanmar small diesel engines, built for reliable service in plant, agricultural, and generator equipment. Made from high‐grade steel with precision‐machined bearing journals and a tapered nose, it restores smooth rotation and power transfer inside the engine. The design suits applications where a taper-fit crank end is required to mount couplings or generator heads securely. Compatible with popular engines such as the Yanmar L40 and L48, it offers a practical, cost‐effective option when the original crankshaft is worn, bent, or damaged. Surfaces are finished to support correct oil film and bearing life, helping maintain engine performance and longevity. Supplier MPN: 320 227.
Key Features:
- Non-genuine replacement compatible with Yanmar L40 and L48 series engines, plus selected equivalents (170F, L40AE)
- High-strength steel construction for durability under continuous-duty use
- Precision-machined taper and bearing journals for correct fit and smooth running
- Standard keyway and threaded nose to accept typical Yanmar-style fixings and couplings
- OEM-style dimensions support straightforward installation with original bearings, seals, and timing gear
- Suitable for generator-driven setups where stable speed and reliable torque transfer are essential
- Helps restore compression sealing and balance when replacing a worn or scored crankshaft
- Cost-effective alternative to OEM while maintaining dependable performance
Typical Applications:
Commonly used in small diesel generator sets, pump units, and compact construction or garden machinery powered by Yanmar L-series engines. Ideal where a tapered output end is needed to seat a coupling, rotor, or pulley securely, supporting dependable operation in demanding site, farm, and workshop environments.
Also known as:
Engine crankshaft, tapered crank, tapered PTO shaft, flywheel-end shaft, generator crankshaft, replacement crank for small diesel engines.
Fits Models:
170F, L40, L40AE, L48
Alternate Part Numbers:
714388-21730, 71438821730
Product Specifications
| L&S Part No. | 320 227 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines, Generators |
| Fits Brands | Chinese, Yanmar |
| Key Features | - Compatible with Yanmar L40 and L48 engines - High-strength steel for continuous-duty durability - Precision-machined taper and bearing journals - Standard keyway and threaded nose for Yanmar fixings - OEM-style dimensions for easy installation |
| Fits Models | L40AE |
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