Description
Overview:
This rocker cover gasket is a replacement seal for Yanmar single-cylinder diesel engines in the L100N series and selected variants such as the L90AE. It sits between the rocker cover and the cylinder head to create a reliable, oil-tight seal. Manufactured from an oil- and heat-resistant elastomer, it is shaped to match the cover profile and retain sealing pressure under vibration. A sound rocker cover gasket helps prevent oil leaks, oil mist, and dirt ingress around the valve gear, supporting clean running and stable engine performance. Ideal for routine servicing or repairs on compact plant, generators, pumps and other equipment using Yanmar L100N-series engines, it provides a straightforward way to restore sealing integrity and reduce mess around the top end.
Key Features:
- Direct-fit replacement for Yanmar L100N and L90AE rocker covers
- Oil- and heat-resistant rubber compound for durable sealing performance
- Helps prevent oil leaks and weeping at the rocker cover perimeter
- Maintains seal under vibration typical of single-cylinder diesel engines
- Stable compression set to support long service intervals
- Moulded profile for accurate seating and easy alignment
- Straightforward to fit during routine service or top-end overhaul
- Helps keep the valve train protected from dust and debris
- Reduces oil mist and keeps surrounding components cleaner
- Useful reference numbers for identification: 114310-11310 and 11431011310
Typical Applications:
Used during maintenance or repair of Yanmar L100N-series engines found in compact construction plant, site generators, water pumps, plate compactors, small mixers and similar equipment. Suitable when replacing a hardened, flattened or damaged gasket to restore a clean, leak-free seal around the rocker cover.
Also known as:
Valve cover gasket, tappet cover gasket, cam cover gasket, rocker box gasket, cylinder head cover gasket, top cover gasket.
Fits Models:
L100N, L90AE
Alternate Part Numbers:
114310-11310, 11431011310
