Description
Overview:
The Genuine Head Gasket for Yanmar L40AE (114250 01340) is a precision sealing component for Yanmar L‐series single‐cylinder diesel engines. Made from durable stamped steel with a reinforced combustion sealing ring, it fits between the cylinder head and engine block to maintain compression and keep engine oil passages sealed. This prevents blow‐by and fluid leakage, supporting efficient running and consistent performance. Designed for Yanmar L40AE and L40AE‐S engines used in compact construction and garden machinery, it matches original specifications for thickness, port layout and bolt pattern. As a genuine Yanmar part, it offers the correct fit and material quality required for reliable service life. Ideal whenever the head is removed for maintenance, decarbonising, or a top‐end rebuild.
Key Features:
- Genuine Yanmar part for assured quality, fit and compatibility
- Precision stamped steel construction for heat and pressure resistance
- Reinforced fire ring helps maintain combustion sealing and restore compression
- Matches OEM tolerances; no modifications or trimming required
- Accurate coolant- and oil-pass alignment to reduce installation errors
- Clean edges and bolt‐hole accuracy for easier head refit and correct torqueing
- Reliable sealing under vibration and thermal cycling in daily site use
- Helps prevent oil seepage and combustion gas leakage at the head joint
- Suitable for routine servicing, top‐end overhauls and full engine rebuilds
Typical Applications:
Used during repairs of Yanmar L40 series engines on generators, water pumps, plate compactors, lighting towers, small agricultural equipment and garden machinery. Commonly fitted when addressing symptoms such as hard starting, reduced power, visible exhaust leakage at the head joint, or oil staining around the cylinder head. Essential when refacing the head, replacing valves, or after overheating events.
Also known as:
Cylinder head gasket, head joint, top‐end gasket, head face gasket, combustion seal, fire‐ring gasket, engine head seal, top gasket, barrel‐to‐head seal.
Fits Models:
L40, L40AE, L40AE-S, L40AES
Product Specifications
| L&S Part No. | 114250 01340 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Yanmar |
| OEM No. | 114250-01340 |
| Unit of Sale | 1 |
| Applications | L40, L40AE, L40AE-S, L40AES |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Fits Models | L40AE | L40AE-S (Mixer) |
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