Description
Overview:
The Gasket, Bonnet is a genuine Yanmar engine seal designed for the L48N5SJ1 Mixer Spec Engine and the L48N series. It sits between mating covers to create a tight seal, helping to keep oil, fumes, dust, and moisture where they belong so the engine runs cleanly and efficiently. Made from durable, heat- and oil-resistant compressed fibre gasket material, it resists deformation and maintains clamping load under operating temperatures typical of small diesel engines. This factory part offers consistent fit and sealing performance, reducing the risk of weeps and leaks after service. It is a direct replacement using the OEM number 114771-11310, making it suitable for routine maintenance or repair on compact single-cylinder Yanmar engines used in construction and garden machinery.
Key Features:
- Genuine Yanmar part for assured fit and performance
- OEM reference 114771-11310 for straightforward identification
- Designed specifically for L48N5SJ1 and wider L48N family
- Compressed fibre construction for reliable, long-lasting sealing
- Resists oil, fuel vapours, and heat typical of small diesel engines
- Helps prevent leaks that can cause mess, contamination, or inefficiency
- Clean edge profile and accurate bolt-hole alignment for easy installation
- Supports correct torque retention when refitting covers
- Suitable for routine servicing to minimise downtime
- Supplied ready to fit with no trimming required
Typical Applications:
Used during service or rebuilds of Yanmar L48N-series engines to reseal bonnet or cover joints after inspection, cleaning, or parts replacement. Common in plate compactors, generators, small pumps, cement mixers, pressure washers, and light plant where the L48N family is installed, helping maintain reliable operation by preventing oil mist escape and ingress of debris.
Also known as:
Bonnet gasket, cover gasket, engine cover seal, housing gasket, bonnet seal, enclosure gasket, engine seal gasket. These terms are often used interchangeably for the gasket that seals a cover or bonnet on small diesel engines.
Fits Models:
L48N
L48N-S
L48N5SJ1
L48NS
Alternate Part Numbers:
114771-11310, 11477111310
Product Specifications
| L&S Part No. | 114771 11310 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Yanmar |
| OEM No. | 114771-11310 |
| Unit of Sale | 1 |
| Applications | L48N, L48N-S, L48N5SJ1, L48NS |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Fits Models | L48N-S (Mixer) | L48N |
