Description
Overview:
This bonnet/cover is a replacement top cover for Yanmar single‐cylinder diesel engines, built to protect the upper engine assembly from knocks, dirt, and moisture. It is a Non Genuine Part made from robust metal with a corrosion‐resistant finish, offering reliable protection without the cost of an OEM unit. Designed to match the original profile and fixing points, it fits the Yanmar L90AE and L100AE, helping to maintain engine cleanliness and correct ventilation around the valve gear. The cover supports routine maintenance by providing easy access once removed, and helps reduce contamination that can shorten engine life. Replaces OEM reference 114650-11950. Supplier/MPN: 320 174. Suitable for use on compact plant and garden machinery powered by these engines.
Key Features:
- Precision fit for Yanmar L90AE and L100AE mounting pattern and gasket face
- Durable metal construction resists vibration, knocks, and workshop handling
- Protective barrier against dust, debris, and moisture ingress to the top end
- Helps maintain oil containment around the rocker area when used with a sound gasket
- Smooth exterior for quick wipe‐down cleaning in service environments
- Cost‐effective Non Genuine Part made to consistent dimensional tolerances
- Straightforward installation with basic hand tools; reuse original fixings where suitable
- Direct replacement for OEM 114650-11950 to simplify part identification
- Supplier/MPN reference 320 174 for easy reordering
- Suitable for compact equipment in tough site and garden conditions
Typical Applications:
Used on small diesel engines driving plate compactors, portable generators, water pumps, pressure washers, lighting towers, and other compact construction or garden machinery. Ideal when the original cover is cracked, dented, or missing, to restore protection and keep contaminants out of the valve gear area. Supports reliable running in dusty yards, building sites, landscaping jobs, and hire fleets.
Also known as:
Rocker cover, valve cover, cylinder head cover, tappet cover, top cover, head cover, overhead gear cover.
Fits Models:
L90AE, L100AE

