This Genuine Yanmar crankcase gasket (part no. 114299-01410) is an OEM sealing component for Yanmar L‐series single‐cylinder diesel engines, including the L48N5SJ1 and L40AE. Made from OEM‐grade composite gasket material designed to resist oil, diesel, and heat, it seals the crankcase joint/side cover to prevent oil leaks and contamination, helping maintain correct lubrication and engine integrity. Precision cut to match the original profile and bolt pattern, it fits accurately without modification. Ideal for routine maintenance, leak repairs, or full rebuilds on compact site machinery powered by these engines, such as mixers, compactors, pumps, and generators. Using a genuine gasket helps preserve engine reliability and reduces the risk of repeat strip‐downs due to sealing issues.

Key Features:
– Genuine Yanmar OEM part for assured fit and compatibility
– Accurate profile and bolt-hole alignment for straightforward installation
– Oil- and heat-resistant composite construction for long service life
– Provides a reliable seal to reduce oil seepage and misting
– Helps maintain crankcase integrity and stable lubrication
– Built to OEM specification for consistent compression and sealing performance
– Suitable for leak repair, side cover removal, or full engine overhaul
– Compatible with selected Yanmar L‐series diesel engines used in site and garden machinery

Typical Applications:
Used during engine rebuilds or maintenance on Yanmar L‐series engines in equipment such as cement mixers, plate compactors, trench rammers, water pumps, generators, and small plant. Replace whenever the crankcase cover is removed or if oil leaks are present to restore proper sealing and protect internal components from dirt and moisture.

Also known as:
Crankcase side cover gasket, crank housing gasket, lower-end case gasket, engine casing gasket, side plate gasket, crankcase joint gasket.

Fits Models:
L40AE, L48AE, L48N, L48N-S, L48N5SJ1, L48NS

Alternate Part Numbers:
11429901410

Product Specifications