Rehlko KDI Series · water-cooled diesel
Rehlko KDI-TCF 1903U4/26
The Rehlko KDI‑TCF 1903U4/26 is a compact, high-performance diesel engine delivering 42 kW (56 hp) at 2600 rpm. With turbocharging and charge‑air cooling, it’s designed for equipment that needs strong power density, responsive torque, and dependable operation in demanding industrial and mobile applications.
- Power
- 42 kW
- Speed
- 2600 rpm
- Max torque
- 225 Nm
- Dry weight
- 233 kg
- Configured to your speed, start and shaft
- Genuine parts and servicing support
- Talk it through: +44 (0) 1626 778 266
About the Rehlko KDI-TCF 1903U4/26
The Rehlko KDI‑TCF 1903U4/26 is part of Rehlko’s KDI 1903 engine family and is rated at 42 kW (56 hp) @ 2600 rpm, making it a strong option for OEM machinery where performance and packaging efficiency need to coexist. The TCF configuration (turbocharged with charge‑air cooling) supports a punchy, usable power curve and helps maintain consistent output under working load — ideal for equipment that can’t afford to feel “flat” when it’s hot, busy, or operating continuously.
For OEMs, the KDI platform is built around modern diesel technology and is widely specified across construction, industrial, and specialist equipment. For service teams, the value is a well-documented engine family with clear variant identification, helping procurement and maintenance stay aligned over the engine’s lifecycle.
If you’re specifying this for a build or replacement, the key is to match the exact variant code (1903U4/26) and confirm the installation interfaces (mounting, cooling pack, intake/exhaust routing, and electrical connections). Share your existing engine code or application details and we’ll help confirm the correct match 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.
Specification
Get this as a PDF datasheet →Performance
- Power
- 42 kW
- Speeds
- 2600 rpm
- Max torque
- 225 Nm @ 1500 rpm
- Use
- Industrial
Engine
- Cylinders
- 3
- Aspiration
- Turbo aftercooled
- Injection
- Direct (DI), common rail
- SAE connection
- SAE4/7.5
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
- 598 mm
- Width
- 530 mm
- Height
- 726 mm
- Dry weight
- 233 kg
Need an installation drawing? Ask and we’ll send the drawing for your configuration.
Free datasheet
Your KDI-TCF 1903U4/26, 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
Genuine spare partsFilters, gaskets and service parts for Rehlko engines, sourced and shipped by us.Find a part →Servicing and set-upSpeed, governor and start set up before it ships, and help with servicing after.Ask the team →One shipment, worldwideAdd parts, a generator or other engines and we'll ship it all together, anywhere in the world.How it works →Technical helpFitting, running or fault-finding: talk to someone who knows the KDI-TCF 1903U4/26.Get in touch →
