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IZUMI D1803 Overhaul Rebuild Kit with Crankshaft and Connecting Rods
IZUMI D1803 Overhaul Rebuild Kit with Crankshaft and Connecting Rods - Image 2
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IZUMI D1803 Overhaul Rebuild Kit with Crankshaft and Connecting Rods


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Engine ModelKubota D1803
Displacement1.826 L (1826 cc)
Cylinder ConfigurationIn-line 3-Cylinder
Bore Size87 mm
Stroke Length102.4 mm
Aspiration TypeNatural Aspiration / Turbocharged Variants
Cooling SystemWater-Cooled
Crankshaft Main Journal Diameter60 mm
CrankshaftForged Alloy Steel
Connecting Rod3 Pieces
Kit TypeStandard Overhaul Rebuild Kit with Crankshaft and Rods
Piston TypeStandard (STD)
Gasket Set TypeFull Upper and Lower
Net Weight38.5 kg

Manufacturer No.

  • D1803-OK-CR-IZUMI

OEM Part No.

  • 1A051-23010
  • 1A091-21113
  • 15766-03310
  • 16487-03040
  • 1G840-23014

Engine Part No.

  • Kubota D1803
  • Kubota D1803-M
  • Kubota D1803-M-DI
  • Kubota D1803-CR

Interchange No.

  • EK-D1803-CR
  • OK-D1803-FULL
  • D1803-REBUILD-KIT

Fitment Vehicles

  • Kubota L2800F
  • Kubota L3240F
  • Kubota L3400F
  • Kubota L3540GST
  • Kubota L3301
  • Kubota L3901
This engine overhaul rebuild kit is designed for the Kubota D1803 series 1.826 liter three-cylinder vertical water-cooled diesel engines. The kit includes a forged alloy steel crankshaft with 60mm main journal diameter, three connecting rods, pistons, rings, cylinder liners, full gasket set (upper and lower), main bearings, connecting rod bearings, thrust washers, and valve stem seals. It restores compression and oil control to original specifications. Compatible with Kubota D1803-M, D1803-M-DI, and D1803-CR engine variants installed in Kubota L-series compact tractors including L2800F, L3240F, L3400F, and L3540GST models. All components manufactured to OEM dimensional standards for direct replacement.