Xinchai 3B11XD51

Xinchai 3B11XD51 — 1.1-litre Inline-3 diesel engine. Find specifications, documents and parts support below.

Production StatusProduction Discontinued

Specifications and documentation remain archived for reference.

Cylinders: L3
Displacement: 1.1 L
Rated Speed: 1,500 RPM

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

Source notes

Official generator engine model: xinchaiengine.com · source.

Three model-specific manufacturer PDFs visually reviewed 2026-11-02.

Engine power / net flywheel power: 11 / 10 kW at 1500 rpm; 13.2 / 12.1 kW at 1800 rpm; 18.5 / 17.62 kW at 3000 rpm.

USER-AUTHORIZED 90% alternator-efficiency estimates from net flywheel output: 9 kWe at 1500 rpm; 10.89 kWe at 1800 rpm; 15.86 kWe at 3000 rpm.

Estimates are not certified prime/standby ratings.

Duty not specified, so frequency-specific duty fields remain blank.

Naturally aspirated; Bosch common rail; bore x stroke 78 x 78.4 mm; oil pan 4 L; engine coolant 1.335 L; 12 V electrical system, 1.4 kW starter.

Source says EURO V; regulatory classification held pending certificate rather than equating road Euro V with nonroad Stage V. 3000 rpm fuel-consumption rows have questionable g/kWh units; not normalized.

Production status unconfirmed: discontinued is user-authorized catalogue classification, not manufacturer-confirmed withdrawal.

Sources: jrrorwxhijopli5p.ldycdn.com · PDF imrorwxhijopli5q.ldycdn.com · PDF rprorwxhijopli5q.ldycdn.com · PDF

View 3B11XD51 spec image

Xinchai 3B11XD51 1.1L Inline-3 diesel generator engine specifications — Shareable spec cardXinchai 3B11XD51 summary imageOpen image

Technical specifications

Technical Specifications

Brand	Xinchai
Model	3B11XD51
Configuration	Inline-3
Cylinders	3
Displacement	1.1 L
Compression Ratio	18
Dry Weight	110 kg
Dimensions (L×W×H)	530 × 390 × 590 mm
Fuel Type	Diesel
Ignition Type	Compression Ignition
Cooling Method	Liquid-Cooled
Country of Origin	China

Check your engine model

The Xinchai 3B11XD51 is a diesel generator-drive engine for applications whose frequency must be verified. Match the model and serial number on your engine plate when requesting a manual or parts. The ratings and emissions information below help identify the version fitted to your generator.

Other ways this model is written

3b11xd51Xinchai 3B11XD51

BrandAll Xinchai engines Complete generatorsdiesel generator sets

3B11XD51 repair parts

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Frequently asked questions

What fuel does the Xinchai 3B11XD51 use?

The Xinchai 3B11XD51 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the 3B11XD51?

The Xinchai 3B11XD51 is an inline-3 (3-cylinder) engine with a displacement of 1.1 L.

Is the 3B11XD51 still in production?

No — the Xinchai 3B11XD51 is discontinued. Its specifications and datasheets remain archived here for reference.

Are reference documents available for the 3B11XD51?

This page links reference documents for the Xinchai 3B11XD51. Check each document's title, model coverage, revision and rating conditions before using it for selection.