3TNV88 3-Cylinder Diesel Engine Assembly 19.6kW 2200rpm for Hitachi 3 Ton Mini Excavator ZX30U-2

Product Overview

This three-cylinder diesel engine assembly is rated at 19.6 kW and 2200 rpm, and it is built to drop into the Hitachi ZX30U-2 3-ton mini excavator in place of the original unit. Workshops, fleet owners and independent dealers use it when a machine has seized, overheated or reached the end of its working life and the fastest route back onto site is a fresh engine rather than a bench rebuild.

What arrives is a complete assembly, not a set of loose castings, so the job is a swap at the mounting points instead of a reassembly project. As an excavator parts supplier we match every order to the machine serial and the engine code on the plate, because a compact 3-ton machine leaves very little room for variation at the mounting feet, bellhousing and connection points. If the old engine is already out, photographs of those faces are usually enough for us to confirm that the unit on the shelf is the right one.

Specifications

Fitment & Machine Matching

• Machine and serial. Send the excavator model, its serial number and the engine code from your old unit together; those three details settle most fitment questions before a quotation is issued.
• Match on numbers. As a diesel engine parts supplier, we compare the code on the plate and the chassis interface rather than going by the way the old engine looks, because two units can appear identical and still differ at the mounting face.
• What it replaces. The assembly follows the original mounting and connection layout as a standard replacement for this machine in the 3-ton class, so the swap stays predictable.
• Different machine or custom build. If the unit is going into anything other than a ZX30U-2, raise it at enquiry stage and our engineering team will review what is practical.
• Ancillaries. Decide early which ancillaries you will carry over from the old engine and which you want supplied with the new one, so the quotation covers everything in one shipment.

Compact Build & Installation Profile

A 3-ton mini excavator gives its engine very little room, so this unit is laid out to make the most of the space available. The modular design keeps the footprint compact and lets the assembly sit in the engine bay without forcing hydraulic hoses or electrical looms into new routes — fewer parts to move aside, and less risk of disturbing a working hydraulic line during the swap.

The build is also meant to cope with how these machines are really used: digging in abrasive ground, running hot through a summer shift, starting cold on a winter site. Materials and fits are selected to resist thermal and mechanical stress, so the assembly keeps its alignment over long working hours instead of developing the vibration and oil weeping that worn-out units show. For a small diesel engine in daily site service, that is the difference between one repair and three.

Running Performance & Service Access

• Steady power through the shift. The assembly is built for consistent output, which is what a compact excavator needs when it is trenching, loading or running an attachment for hours at a time.
• Smooth hydraulic response. Power delivery is even rather than peaky, so boom, arm, bucket and swing functions stay predictable for the operator.
• Fuel and running cost. The design targets efficient fuel use, which matters when a machine works a full day on a single tank.
• Reliable starting. A unit that fires up first time, hot or cold, keeps the day's plan intact and avoids the call-out.
• Service access. Maintenance points stay reachable with the engine still in the machine, so routine service does not become an engine-out job. Keep the excavator engine parts your workshop normally stocks — filters and similar consumables — on the shelf so a scheduled service does not turn into a waiting game.

Technical Support & Model Matching

Our technical team supports buyers before and after the order. Send us your OEM part number or machine and engine details and we will confirm the correct match for your repair, overhaul or replacement job. If you are unsure what has failed, share the symptoms and our specialists will help with troubleshooting and narrow down the right assembly. We also provide installation and commissioning guidance, and share product documentation on request. With coverage across Komatsu, Caterpillar, Cummins, Isuzu, Hitachi, Sany, Doosan and Kubota machinery, we can help consolidate your parts requirements into one order.