Kubota D1803 Diesel Engine | New 03 Series, 3 Cylinder, 37.5 to 49.6 HP
New genuine Kubota D1803 diesel engine, 3 cylinders, 37.5 to 49.6 HP. The D1803 uses a common rail fuel system.
Get a Quote
Kubota builds each engine to a spec for the machine it goes in. Call 530-668-0818 with your equipment make and model, or the model and serial number stamped on your old engine, and we will quote the right build. We are an authorized Kubota engine dealer.
Versions and specifications
| Version | Power (gross intermittent) | Fuel | Aspiration | Emissions | L x W x H | Weight | Aftertreatment |
|---|---|---|---|---|---|---|---|
| D1803-CR-E4B | 28 kW / 37.5 HP @ 2700 rpm | Diesel | Naturally aspirated | Tier 4 | 29.4 x 21.1 x 28.4 in | 407 lb (185 kg) | DOC + DPF |
| D1803-CR-TE4B | 37 kW / 49.6 HP @ 2700 rpm | Diesel | Turbocharged | Tier 4 | 29.4 x 21.1 x 29.2 in | 432 lb (196 kg) | DOC + DPF |
| D1803-CR-TIE4B | 37 kW / 49.6 HP @ 2700 rpm | Diesel | Turbocharged + aftercooled | Tier 4 | 29.4 x 21.1 x 28.7 in | 430 lb (195 kg) | DOC |
Source: AIE Kubota Engine Series Lineup. Horsepower is gross intermittent as Kubota rates it. 3 cylinders, liquid cooled.
Kubota 03 Series
Kubota’s 03 Series engines are 3 and 4 cylinder, liquid-cooled diesel engines that meet EPA Tier 4 Final. Kubota lists compaction, air compressors, pressure washers, forklifts, refrigeration, mowers and welders among their uses.
Replacing an engine
Kubota requires a replacement engine to meet the same emissions tier as the original, or a newer one. The engine model and serial number are stamped into the block. Kubota replacement engines are newly manufactured, never remanufactured.
Questions
How much horsepower does the Kubota D1803 make?
Kubota rates it at 37.5 to 49.6 HP (gross intermittent), depending on the version.
How do I get the right D1803?
Call 530-668-0818 with your engine model and serial number, or your machine make and model, and we will match the build.
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