Description
Overview:
This nozzle gasket is a small copper sealing washer used to create a tight, leak-free seal at the injector nozzle on Yanmar single‐cylinder diesel engines. It sits between the injector and the cylinder head to prevent combustion gas and fuel leaks, helping the engine maintain correct injection pressure and clean combustion. Designed for the Yanmar L48N5SJ1 Mixer Spec Engine and compatible L48N series variants, it is a straightforward service item commonly replaced whenever the injector is removed. Built to cope with high temperatures and pressure, it supports reliable running in compact construction and garden machinery such as cement mixers, plate compactors, generators, and pumps. Yanmar reference: 114771-11461 for correct identification.
Key Features:
- Copper crush-washer design provides a dependable seal under high temperature and pressure
- Helps restore correct injection sealing to reduce smoke, misfire, and hard starting
- Precision fit for Yanmar L48N5SJ1 and related L‐series engines for consistent performance
- Resists diesel, oil, and combustion by‐products for long service life
- Simple to install during injector refit; recommended to replace on each removal
- Supports efficient combustion, fuel economy, and stable idling
- Suitable for routine maintenance and injector servicing to minimise downtime
- Yanmar reference 114771-11461 aids quick part matching and ordering
Typical Applications:
Used during injector maintenance, engine overhauls, or fault rectification where injector sealing is suspected. Common on small Yanmar-powered equipment including site mixers, wacker plates, compact generators, pressure washers, and water pumps. Ideal when servicing engines that operate in dusty or heavy-duty conditions where injector removal and inspection are routine.
Also known as:
Injector nozzle sealing washer, copper crush washer, injector washer, nozzle seat gasket, injector seal ring, fuel injector gasket, sealing ring for injector, compression washer for injector.
Fits Models:
L100N, L48N, L48N-S, L48N5SJ1, L48NS, L60AE, L70N, L90AE
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