This genuine Yanmar gasket (114771-12200) is a precision-cut sealing component for the L48N series of single-cylinder diesel engines, including the L48N and mixer spec L48N5SJ1. Made from durable composite gasket material suited to small diesel engines, it creates a tight seal between machined faces to prevent oil, fuel and combustion gas leaks. Its stable construction resists heat and vibration, helping maintain correct compression and fluid containment over long service intervals. Designed to match original equipment dimensions, it fits cleanly without modification and supports reliable engine performance in site mixers and other compact plant. A practical choice for tradespeople, hire fleets and DIY users carrying out routine servicing or rebuilds on Yanmar-powered machinery.

Key Features:
– Genuine Yanmar OEM part for assured fit and compatibility with the L48N family
– Composite gasket material engineered for heat, vibration and diesel/oil resistance
– Helps prevent leaks at mating surfaces to maintain compression and engine integrity
– Precise tolerances for consistent sealing and reliable operation
– Suitable for the L48N mixer spec (L48N5SJ1) used widely in site mixers
– Straightforward to install with standard workshop tools
– Ideal for scheduled maintenance or reassembly after strip-downs
– Supports long service life by reducing rework caused by poor sealing

Typical Applications:
Used during servicing or rebuilds of Yanmar L48N-series engines fitted to light construction and garden machinery, such as cement mixers, plate compactors, generators and water pumps. Commonly installed when refitting covers, cases or manifolds to restore proper sealing after disassembly.

Also known as:
Engine gasket, gasket seal, engine seal, sealing gasket, jointing gasket, paper gasket, cover gasket. These terms are often used when referring to flat engine sealing components that prevent leaks between mating faces.

Fits Models:
L48N, L48N-S, L48N5SJ1, L48NS

Alternate Part Numbers:
114771-12200, 11477112200

Product Specifications