Description
Overview:
This Genuine Yanmar Spring for Rocker Cover / Bonnet (MPN 114250-03640) is a precision-wound metal coil designed for Yanmar L‐series single-cylinder diesel engines, including the L48 and L100AE. Made from durable steel, it provides the correct tension to keep the rocker (cam) cover and bonnet securely in place, helping to maintain gasket compression and a reliable seal. This reduces the risk of oil mist leaks and keeps dust and moisture out of the valve train area. Built for engine environments, it withstands vibration, heat, and exposure to oil. It is a direct replacement for a worn, weakened, or lost spring and fits in the original location for a straightforward installation. Ideal for routine servicing to keep your engine protected and running smoothly.
Key Features:
- Genuine Yanmar part for assured quality and compatibility
- MPN: 114250-03640 for easy identification and ordering
- Robust steel construction for long service life
- Maintains correct cover/bonnet tension to protect seals and fasteners
- Helps prevent leaks and contaminants entering the rocker area
- Stable performance under vibration and engine temperatures
- Direct-fit replacement; simple to install with basic tools
- Suitable for preventative maintenance and repair on L‐series engines
Typical Applications:
Used during servicing or repairs of Yanmar L‐series diesel engines found on compact construction machinery, generators, water pumps, plate compactors, pressure washers, small agricultural equipment, and other plant. Replaces fatigued springs to restore proper cover retention and sealing, supporting reliable day-to-day operation in site, workshop, and yard environments.
Also known as:
Rocker cover spring, bonnet spring, rocker box spring, cam cover spring, cover retention spring, valve cover spring, engine cover tension spring.
Fits Models:
L100AE, L40AE, L40AE-S, L40AES, L48, L48AE, L60AE, L70AE, L90AE
Alternate Part Numbers:
114250-03640, 11425003640
Product Specifications
| L&S Part No. | 114250 03640 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Yanmar |
| OEM No. | 114250-03640 |
| Unit of Sale | 1 |
| Applications | L100AE, L40AE, L40AE-S, L40AES, L48, L48AE, L60AE, L70AE, L90AE |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Fits Models | L40AE | L60AE | L90AE | L48AE | L70AE | L100AE | L40AE-S (Mixer) |
