HND 9L21/31

HND 9L21/31 — inline-9 diesel engine. Find specifications, documents and parts support below.

Production StatusIn Production

HND-MAN L21/31

Maximum Mechanical Power: 1,980 kW
Cylinders: L9
Rated Speed: 1,000 RPM

Estimated electrical output

Engine power × 0.90. These are estimates, not manufacturer generator ratings. Actual output depends on the alternator and operating conditions.

Frequency / duty	Engine	Estimate
Frequency and duty unverified	1,980 kWm	1,782 kWe

Datasheet & documents

Match the model number on your engine plate to the document. Check its revision date and the speed and duty listed for each power rating.

Downloads

Datasheet
HND manufacturer technical sheet — MAN Series Engine
3.3 MB

Source notes

HND-manufactured MAN-licensed generating-set engine.

Source rated engine/genset outputs are 1980/1881 kW at 1000 rpm, 50Hz; 1980/1881 kW at 900 rpm, 60Hz.

These are distinct mechanical/electrical outputs, not a power range.

Source does not designate ISO PRP/ESP, so prime and standby fields remain unset.

Power_kw is the 50Hz rated engine output.

Genset masses and dimensions are not engine-only specifications and are not populated as engine dimensions.

Fuel capability: HFO up to 700 cSt at 50 C.

Bore/stroke 210/310 mm.

Source PDF p2: hnd.com.cn · PDF

Status active means currently listed on the manufacturer or regional supplier website; factory production availability is not independently confirmed.

Additional generating-engine specifications from the HND MAN brochure, PDF page 2: displacement per cylinder 10.7 dm3 (manufacturer rounded value); maximum combustion pressure 21 MPa; lubricating-oil consumption 0.8 g/kWh.

These specifications belong to the generating-engine version, not the separate marine-propulsion table.

Source: hnd.com.cn · PDF

View 9L21/31 spec image

HND 9L21/31 L9 diesel high-speed industrial engine specifications — Shareable spec cardHND 9L21/31 summary imageOpen image

Technical specifications

Technical Specifications

Brand	HND
Model	9L21/31
Series	HND-MAN L21/31
Configuration	L9
Cylinders	9
Fuel Type	Diesel
Country of Origin	China

Check your engine model

The HND 9L21/31 is a high-speed industrial diesel engine rated at 1,980 kW mechanical output at 1,000 RPM. It is used in off-road equipment and can support engineered variable-speed power systems, but its maximum power is not a direct 50/60 Hz alternator rating. Verify the drivetrain, power electronics, cooling, and emissions installation with Volvo Penta before specifying a generator package.

Other ways this model is written

9l21319L21 31HND 9L21/31HND-MAN L21/31 9L21/31

BrandAll HND engines Complete generatorsdiesel generator sets

9L21/31 repair parts

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Frequently asked questions

What is the maximum power output of the HND 9L21/31?

The HND 9L21/31 has a maximum mechanical output of 1,980 kW at 1,000 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.

What fuel does the HND 9L21/31 use?

The HND 9L21/31 is a diesel variable-speed industrial engine.

What is the cylinder configuration of the 9L21/31?

The HND 9L21/31 is an inline-9 (9-cylinder) engine.

What is the catalog status of the HND 9L21/31?

The HND 9L21/31 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.

Are reference documents available for the 9L21/31?

This page links reference documents for the HND 9L21/31. Check each document's title, model coverage, revision and rating conditions before using it for selection.