Description
Overview:
This non-genuine decompression shaft/lever is a replacement part for Yanmar single-cylinder L-Series diesel engines. Built with durable metal construction and a precisely machined shaft, it interfaces with the cylinder head's decompression mechanism to lower cylinder pressure during starting. This reduces effort on pull-starts and load on starter motors, helping engines fire more readily and consistently. It is a direct replacement for OEM part number 114250-03591 and suits engines widely used in generators, pumps, compactors and garden machinery. Dimensions for reference: shaft length 44 mm (1.73 in); shaft diameter 9.9 mm (0.39 in). Designed to fit the original location and operate with existing fixings and springs where fitted. Suitable for popular models including the Yanmar L100 and 186F.
Key Features:
- Non-genuine, cost-effective replacement; replaces OEM 114250-03591
- Precision-engineered for a dependable fit and smooth operation
- Durable metal construction for long service life in tough site conditions
- Helps cold starts by reducing compression; less strain on starter rope/motor
- Straightforward installation using standard tools in the factory position
- Compatible with a wide range of Yanmar L-Series engines used in plant and garden equipment
- Compact dimensions: shaft length 44 mm (1.73 in), shaft diameter 9.9 mm (0.39 in)
Typical Applications:
Used on small diesel-powered equipment driven by Yanmar L-Series engines, including site generators, water pumps, plate compactors, trench rammers, pressure washers and garden machinery. Ideal when refurbishing engines that are hard to start or when the original decompression lever is worn, bent or missing.
Also known as:
Compression release lever, compression release shaft, decompressor lever, decompressor shaft, decomp lever, decomp shaft, start-assist lever.
Fits Models:
170F, 178F, 186F, L100, L100N, L40, L40AE, L48, L60, L60AE, L70, L75, L90, L90AE
Alternate Part Numbers:
114250-03591, 11425003591, M5618
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