Haifeng Machinery
VMAN logo

VMAN

VMAN C03B1

In Production

The VMAN C03B1 is a 2.5-litre inline-4 diesel engine for generator sets, rated at 50 kVA / 40 kWe standby power at 1,800 RPM (60 Hz). It is a liquid-cooled engine built in China.

Overhaul & repair parts
Manufacturer files
2 datasheets
Last updated
2026-06-08
Package route
diesel generator sets
Standby Power · 60 Hz
50 kVA
Electrical Output
40 kWe
Cylinders
L4
Displacement
2.5 L
Rated Speed
1,800 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf

60 Hz1800 RPM

kWmkWekVA
Prime Power403645
Standby Power444050

Ask about VMAN C03B1

Choose parts / service or sourcing. Your message includes this model and page link.

VMAN C03B1 overhaul & repair parts

Already running a VMAN C03B1? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.

Start with engine identification

We do not have a reviewed public parts preview for this model yet. Send the engine details and tell us what needs repair.

Let’s identify the right parts.

The model is the starting point. Serial numbers and build configurations can change which parts fit.

  1. Take a clear photo of the engine nameplate.
  2. Tell us what needs repair or replacement.
  3. Send both in WhatsApp to start a fitment check.
How to read your engine nameplateSend nameplate on WhatsApp

Opens WhatsApp with C03B1 and your selected categories included. Attach your photos there.

Shareable spec cardVMAN C03B1 summary imageOpen image
VMAN C03B1 2.5L L4 diesel generator engine — 50 kVA standby specifications

VMAN C03B1 generator set context

The VMAN C03B1 is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 50 kVA / 40 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.

Also searched as

c03b1VMAN C03B1

Technical Specifications

BrandVMAN
ModelC03B1
ConfigurationL4
Cylinders4
Displacement2.5 L
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardUnregulated
Country of OriginChina

Frequently asked questions

What is the power output of the VMAN C03B1?

The VMAN C03B1 is rated at 50 kVA standby / 45 kVA prime at 60 Hz (1,800 rpm).

Does the C03B1 run at 50 Hz or 60 Hz?

The VMAN C03B1 is rated for 60 Hz (1,800 rpm).

What fuel does the VMAN C03B1 use?

The VMAN C03B1 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the C03B1?

The VMAN C03B1 is an inline-4 (4-cylinder) engine with a displacement of 2.5 L.

What is the catalog status of the VMAN C03B1?

The VMAN C03B1 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 C03B1?

This page links reference documents for the VMAN C03B1. Check each document's title, model coverage, revision and rating conditions before using it for selection.

Related Engines

Compare VMAN C03B1