Description
Overview:
The Spring, Decompression (114299-03640) is a genuine Yanmar component for L‐series single‐cylinder diesel engines used on site mixers and other compact machinery. Made from hardened spring steel, it provides the correct, consistent tension for the decompressor mechanism on the cylinder head. This helps ease starting by briefly relieving cylinder pressure, reducing pull‐start effort or starter motor load. Purpose‐built for mixer‐spec engines, it offers a precise fit on the Yanmar L48N5SJ1 and supports reliable running on machines such as Winget 100T mixers. Built for demanding site conditions, the spring resists fatigue from vibration and heat, helping to maintain dependable starting performance and extend the service life of associated decompression components.
Key Features:
- Genuine Yanmar part for assured fit and material quality (OEM 114299-03640)
- Hardened spring steel for stable force and long service life
- Precise geometry to suit the decompressor lever/shaft assembly on L‐series engines
- Helps reduce pull‐cord effort and starter load during cold or frequent starts
- Robust under vibration, oil mist, and temperature cycles common in mixer use
- Compact, like‐for‐like replacement with no modifications required
- Supports reliable starting and reduces strain on ancillary starting components
- Suitable for scheduled maintenance or direct replacement of a fatigued spring
Typical Applications:
Used when servicing or repairing Yanmar L‐series mixer‐spec engines on site mixers, compactors, light generators, and pumps. Common in Winget and Belle mixer ranges where dependable starts are essential. Ideal as a preventative maintenance item or to restore correct decompressor operation when starting becomes harder or inconsistent.
Also known as:
Decompressor return spring, decompression lever spring, valve lifter spring, starting aid spring, engine decompressor spring, cylinder head decompressor spring.
Fits Models:
100T, 150T, 175T, 200T, L100N, L48N, L48N-S, L48N5SJ1, L48NS, L70N, Premier 100XT, Premier 150XT, Premier 175XT, Premier 200XT
Alternate Part Numbers:
114299-03640, 11429903640
Product Specifications
| L&S Part No. | 114299 03640 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Yanmar |
| OEM No. | 114299-03640 |
| Unit of Sale | 1 |
| Machine Type | Mixers, Engines |
| Fits Brands | Belle, Winget, Yanmar |
| Key Features | - Genuine Yanmar part ensures correct fit and quality - Hardened spring steel for long service life - Fits Yanmar L48N5SJ1 and similar engines - Reduces pull-start effort and starter load - Resists vibration and temperature cycles in mixers |
| Fits Models | L48N-S (Mixer) | L100N | L48N | L70N |
Reviews
Ask a Question
Compatibility
Customers also bought
Related Products
-
![]()
Bucket Pin & Bush Kit for Kubota U25-3 Mini Digger/Excavator£102.00 £85.00
