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Yanmar L48N

Series: L-N Series

Source: https://www.kleinanzeigen.de/s-yanmar-l100/k0

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With the L48N, Yanmar offers a model from the L-N Series series. The engine delivers 4.8 hp (3.5 kW), has 1 cylinder. The engine is air-cooled. The fuel is diesel. The L-N Series series covers 3 models. Rated output within it ranges from 4.8 to 10.1 hp; the L48N sits at the bottom of that range with 4.8 hp. Its immediate neighbours are the L70N above it with 6.7 hp. 1231 Yanmar models across 70 series are on record.

Yanmar L-N Series – air-cooled single-cylinder diesel engines of the register: L48N, L70N and L100N from Yanmar's industrial engine production

The Yanmar L-N Series brings together on this collective page three air-cooled single-cylinder diesel engines: L48N, L70N and L100N. Yanmar was founded in 1912 in Osaka and in 1933 was the first maker to bring a practical small diesel engine into series production; the L range continues that tradition of rugged, air-cooled single-cylinders for stationary and mobile industrial use, where no coolant circuit needs maintaining.

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The register lists here 3 versions: L48N, L70N and L100N. Output ranges from 3.5 to 7.4 kW (4.8 to 10.1 hp) at displacements of 219 to 435 cm³ and a rated speed of 3,600 rpm; all three are air-cooled naturally aspirated single-cylinder engines, dry weight lies between 27.0 and 48.5 kg.

Air-cooled single-cylinder diesels such as the L-N range have driven and still drive pumps, compressors, small construction machines and agricultural equipment worldwide, where their simple maintenance and resistance to frost and coolant shortage are especially valued.

When buying used, what counts on these air-cooled engines is the condition of the cooling fins and cooling fan, compression, and the condition of the injector; since the engines are often permanently built into equipment, it is also worth checking attachments such as the pulley or PTO flange. Spare parts run through Yanmar's industrial engine distribution.

Sources: SpecCodex register, model data: Yanmar L-N Series, Yanmar (manufacturer)

Technical data

Engine

Fuel	dieselcorrect
Power	4.8 hp (3.5 kW)correct
Cylinders	1correct
Cooling	air-cooledcorrect

Dimensions and weights

Dry weight	27 kgcorrect

Other data

Aspiration	naturally aspiratedcorrect
Bore × stroke	70x57correct
Dimensions	332x384x417correct
Displacement	219 lcorrect
Speed	3,600 rpmcorrect

Frequently asked questions

How much power does the Yanmar L48N have?

The Yanmar L48N delivers 3.5 kW.

What engine does the Yanmar L48N have?

1 cylinders, Diesel.

What to check before buying

Match the data plate against the order: frame size, mounting and rating have to agree.
For used units, ask about winding condition and bearing play.
Ask about parts availability for this series — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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