Haifeng Machinery

Weichai

Weichai WP4.6ND138E430

Production Discontinued
This engine is no longer in production. Specifications and documentation remain archived for reference.

Weichai WP4.6ND138E430. Source: 发动机数据单-WP4.6N-7002_WP4.6ND138E430_NonRad无散热器_Datasheet_26-02-05.pdf, p.1. Gross engine mechanical PRP 125 kW / ESP 138 kW at 1500 rpm. Net power is configuration-dependent and separate from gross mechanical output; no electrical genset output inferred. Emissions statement as printed: China Non-road IV; no additional certification inferred. Production status is unknown; discontinued is the user-authorized catalogue classification, not manufacturer-confirmed cessation. No production-end year asserted. Manufacturer-reported emissions test data, source review 2026-10-21: NOX 2.109, PM 0.004, CO 0.002, HC 0.04 g/kWh. Test date as printed: 28/04/23. Procedure as printed: GB 20891. Source: WP4.6ND138E430排放数据.pdf, p.1. Values describe the tested configuration; they do not establish an additional emissions certificate, production status or replacement PRP/ESP rating. Physical specifications added from manufacturer datasheets, 2026-10-21: compression ratio 17:1; dry engine weight 460 kg without radiator and radiator pipes; overall dimensions without radiator (L × W × H) 1119 × 788 × 995 mm. Sources: 发动机数据单-WP4.6N-7002_WP4.6ND138E430_NonRad无散热器_Datasheet_26-02-05.pdf (physical data on pp.1–2). Existing populated specification fields were not overwritten. Weight is dry engine weight, not genset shipping weight.

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Supporting documents
2 documents · 1 datasheet
Last updated
2026-10-21
Package route
diesel generator sets
Mechanical Output
138 kW
Cylinders
L4
Displacement
4.58 L
Rated Speed
1,500 RPM

Power Ratings

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

50 Hz1500 RPM

kWmkWekVA
Prime Power125——
Standby Power138——

Estimated rating: 124.2 kWe (138 kW × 0.90) · 50 Hz · standby

Estimated rating: 112.5 kWe (125 kW × 0.90) · 50 Hz · prime

Planning estimate, not a manufacturer generator rating. Confirm the alternator, engine speed and operating conditions.

Weichai WP4.6ND138E430 overhaul & repair parts

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Illustrative engine overhaul parts including liners, pistons, rings, bearings and gaskets
Overhaul parts. Parts vary by engine.
Illustrative unbranded filter elements and fuel-water separators
Filters and separators. Fitment needs checking.
View WP4.6ND138E430 spec image
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Weichai WP4.6ND138E430 4.58L L4 diesel generator engine specifications

Weichai WP4.6ND138E430 generator set context

The Weichai WP4.6ND138E430 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 138 kW / 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.

Model name formats

wp46nd138e430Weichai WP4.6ND138E430

Technical Specifications

BrandWeichai
ModelWP4.6ND138E430
ConfigurationL4
Cylinders4
Displacement4.58 L
Compression Ratio17:1
Dry Weight460 kg
Dimensions (L×W×H)1119 × 788 × 995 mm
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardChina Non-road IV

Frequently asked questions

Does the WP4.6ND138E430 run at 50 Hz or 60 Hz?

The Weichai WP4.6ND138E430 is rated for 50 Hz (1,500 rpm).

What fuel does the Weichai WP4.6ND138E430 use?

The Weichai WP4.6ND138E430 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the WP4.6ND138E430?

The Weichai WP4.6ND138E430 is an inline-4 (4-cylinder) engine with a displacement of 4.58 L.

What emissions information is listed for the WP4.6ND138E430?

This record lists China Non-road IV for the Weichai WP4.6ND138E430. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.

Is the WP4.6ND138E430 still in production?

No — the Weichai WP4.6ND138E430 is discontinued. Its specifications and datasheets remain archived here for reference.

Are reference documents available for the WP4.6ND138E430?

This page links reference documents for the Weichai WP4.6ND138E430. Check each document's title, model coverage, revision and rating conditions before using it for selection.

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