Rehlko KDI Series · water-cooled diesel

Rehlko KDI-TCL 3404U4/22

The Rehlko KDI‑TCL 3404U4/22 is a compact 4‑cylinder turbo common‑rail diesel engine delivering 55.4 kW (74 hp) at 2600 rpm. It’s designed for OEM machinery and industrial equipment that need strong, dependable power in a space-efficient package, with modern fuel injection and a well-supported engine…

Power
55.4 kW
Speed
2200 rpm
Max torque
375 Nm
Dry weight
394 kg
US Tier 4 FinalIndustrial
  • Configured to your speed, start and shaft
  • Genuine parts and servicing support
  • Talk it through: +44 (0) 1626 778 266

About the Rehlko KDI-TCL 3404U4/22

The Rehlko KDI‑TCL 3404U4/22 brings the KDI platform into a higher-output, 4‑cylinder format, rated at 55.4 kW (74 hp) @ 2600 rpm. Built around turbocharging and common‑rail fuel injection, it’s well-suited to equipment that needs confident working power, consistent performance under load, and a modern diesel package that integrates cleanly into compact machine bays.
For OEMs, the KDI 3404 family is attractive because it balances power density with practical installation. The 4‑cylinder layout supports smooth operation for applications where refinement and steady-duty performance matter, while the turbo common‑rail configuration helps deliver responsive output for real-world duty cycles.
The best results come from matching the engine to the full installation package — cooling capacity, intake/exhaust routing, mounting points, and electrical interfaces. If you’re replacing an existing unit or specifying for a build, share the current engine plate code and application details and we’ll help confirm the correct variant and fitment before ordering.

Every engine we supply is set up for its job before it leaves Teignmouth, and backed by the parts and people to keep it running.

Performance

Power
55.4 kW
Speeds
2200 rpm
Max torque
375 Nm @ 1400 rpm
Use
Industrial

Engine

Cylinders
4
Aspiration
Turbo aftercooled
Injection
Direct (DI), common rail
SAE connection
SAE3/11.5

Emissions

Standard
EU Stage IIIB, US Tier 4 Final
EGR
Yes
DOC
Yes
DPF
No

Cooling

Type
Water-cooled
Radiator
Yes
Fan
Yes
Charge air cooler
Yes

Figures are manufacturer published data and may change. We’ll confirm the final specification with your quote.

Dimensions

Length
726 mm
Width
576 mm
Height
816 mm
Dry weight
394 kg

Need an installation drawing? Ask and we’ll send the drawing for your configuration.

Length 726Width 576Height 816

Free datasheet

Your KDI-TCL 3404U4/22, on one page.

Pick your set-up and we’ll email you a PDF datasheet with the full specification and your configuration, ready to share or add to a tender. Want a price too? Tick the box and the engine team will quote for it.

  • Full Rehlko specification
  • Your speed, start and application
  • Dimensions and weight
  • Prepared in your name
1. Your set-upStep 1 of 2
Speed
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