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Diesel Engine

Diesel Engine

Heavy-duty diesel engines for on-highway trucks, construction equipment, compressors and industrial power units — covering Cummins, Isuzu, Perkins, Scania, Weichai, Deutz and compatible series.

Whether you need a complete engine assembly or a matched configuration for your chassis, our team helps verify OEM codes, power ratings and installation requirements before shipment.

Why Choose Our Diesel Engines

Built for heavy-duty fleets — specification matching, multi-brand supply and export-ready delivery.

  • OEM-Matched Specs

    Power, torque and mounting options matched to truck, bus, construction and marine platforms.

  • Export-Ready Supply

    Stable inventory, export packing and complete documents for international B2B buyers.

  • Multi-Brand Coverage

    Cummins, Isuzu, Scania, Weichai, Deutz and more — one partner for mixed fleets.

  • QC & After-Sales

    Incoming inspection, dyno/test options and responsive spare-parts support after delivery.

Engines are supplied in four build forms: a complete diesel engine assembly ready to drop in, a long block with the cylinder head and internal parts assembled, a short block with the crankshaft, pistons and connecting rods but no cylinder head, and a bare engine for workshops that transfer their own components. New and original diesel engines are both available — tell us whether you need a brand new engine or an OEM original and we will quote accordingly.

Generator drive engines are supplied for standby and prime power applications, and marine-rated and industrial configurations are available on request. Every unit is checked against the OEM specification before packing. Export packing uses film wrap, anti-rust bags and wooden crates, and we prepare the commercial invoice, packing list and certificate of origin for your destination market.

Where these engines are used

We supply truck diesel engines for haulage and distribution fleets, construction diesel engines for excavators, loaders and dozers, agricultural diesel engines for tractors and harvesters, and generator diesel engines for standby and prime power. Marine diesel engines are quoted for fishing vessels and workboats, and off-road diesel engines are matched to the same industrial platforms. On-highway and off-road builds are confirmed against the engine code on your unit.

Typical orders are a diesel engine for truck, a diesel engine for excavator, or a diesel engine for generator set. Each of these can be quoted as a diesel engine complete assembly for heavy equipment, or as a long block or short block where your workshop transfers its own parts.

Build forms and condition

You can order a new diesel engine, a remanufactured diesel engine, a used diesel engine or an original diesel engine, and the quotation states which of these you are buying. Aftermarket diesel engines are available where the budget does not stretch to an OEM unit. High power diesel engines for generator and marine duty are quoted against the rating you need, and every heavy-duty diesel engine we ship is checked against the engine code first.

All units listed are 4-stroke diesel engines in 4-cylinder and 6-cylinder layouts, available water-cooled and air-cooled, in light duty and heavy-duty ratings. Where only the wearing parts are needed we quote a diesel engine rebuild kit instead of a complete unit.

Questions buyers ask

Do you supply complete engines or only parts?

Both. A complete diesel engine assembly is quoted alongside cylinder heads, blocks, crankshafts, pistons, camshafts, injectors and turbochargers for the same engine family.

Can you match a used or remanufactured engine to my chassis?

Yes. Send the engine code, the chassis or machine model and the OEM number, and we confirm the build form and mounting before shipping.

What is the difference between a long block and a short block?

A long block includes the cylinder head and internal parts; a short block carries the crankshaft, pistons and connecting rods but no cylinder head. Both are available for the engines above.

Engine Applications

Truck Engine

Truck Engine

Heavy-duty truck engines for freight haulage, logistics f
Bus Engine

Bus Engine

Dependable power units for city buses, coaches and public
Agricultural Engine

Agricultural Engine

Rugged engines for tractors, harvesters and farm machiner
Construction Engine

Construction Engine

Engines for excavators, loaders, cranes and other constru
Mining Engine

Mining Engine

High-torque engines for mining trucks, drills and heavy s
Marine Engine

Marine Engine

Marine-grade engines for commercial vessels, workboats an

Diesel Engine FAQ

Can you match my engine model or chassis?

Yes. Share the OEM model, serial plate photo or vehicle application and we will confirm the correct assembly or compatible options.

Our Brands

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Contact Info

Komotashi New Material Technology (Shaoxing) Co., Ltd.

  • Meilonghu Road, Didang Street, Shaoxing, China
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