Kubota D1803 Engine Parts

Alpine Equipment stocks OEM and aftermarket parts for the Kubota D1803 engine — filters, gaskets, seals, pumps, water pumps, injectors, and complete rebuild components. Same-day shop pickup in Utah County; nationwide shipping.

Need pricing on a complete D1803 engine or a full rebuild? Call our factory-certified Kubota team at (801) 701-7394.

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Kubota D1803 diesel engine — genuine parts from Alpine Equipment Repair
  • Cylinders3
  • Displacement111.4 cu.in.
  • Bore & Stroke3.43 x 4.031 in
  • Rated Output37.4–56.3 HP
  • Max Torque85.3–134.8 lb-ft
  • AspirationNaturally aspirated / Turbocharged / Turbocharged + Turbo After Cooler
  • Dry Weight333–469 lbs

Specs vary by engine variant/spec code. Confirm fitment by part number or call us.

Kubota D1803 Manuals & Parts Diagrams

Official Kubota parts lists and service-data reference for this model. Use them to find the exact part number or spec, then search or call to order. Or browse the full Kubota manual library.

Illustrated Parts Lists

Service Data

D1803 Engine Parts (64 parts)

Genuine Kubota sleeve, part number 68271-65920 — Alpine Equipment 68271-65920 SLEEVE $1.58 Genuine Kubota terminal 1, part number 68271-65910 — Alpine Equipment 68271-65910 TERMINAL 1 $1.58 Genuine Kubota bearing, ball(radial), part number 36920-40030 — Alpine Equipment 36920-40030 BEARING, BALL(RADIAL) $19.38 Genuine Kubota tube(pressure, 2), part number 1J804-18652 — Alpine Equipment 1J804-18652 TUBE(PRESSURE, 2) $9.56 Genuine Kubota clamp, hose, part number 1J801-18750 — Alpine Equipment 1J801-18750 CLAMP, HOSE $0.60 Genuine Kubota manual, op, part number 1J500-89162 — Alpine Equipment 1J500-89162 MANUAL, OP $46.35 Genuine Kubota manual, op, part number 1J500-89163 — Alpine Equipment 1J500-89163 MANUAL, OP $86.51 Genuine Kubota manual op, part number 1J500-89157 — Alpine Equipment 1J500-89157 MANUAL OP $47.94 Genuine Kubota bag, plastic, part number 1J500-08180 — Alpine Equipment 1J500-08180 BAG, PLASTIC $4.34 Genuine Kubota operators manual, part number 1J464-89170 — Alpine Equipment 1J464-89170 OPERATORS MANUAL $46.35 Genuine Kubota manual, instruction, part number 1J464-89169 — Alpine Equipment 1J464-89169 MANUAL, INSTRUCTION $47.94 Genuine Kubota manual instruction, part number 1J464-89165 — Alpine Equipment 1J464-89165 MANUAL INSTRUCTION $47.94 Genuine Kubota manual, inst, part number 1J023-89810 — Alpine Equipment 1J023-89810 MANUAL, INST $23.81 Genuine Kubota manual, inst, part number 1J021-89810 — Alpine Equipment 1J021-89810 MANUAL, INST $3.38 Genuine Kubota manual, inst, part number 1J024-89810 — Alpine Equipment 1J024-89810 MANUAL, INST $23.35 Genuine Kubota manual, inst, part number 1J020-89810 — Alpine Equipment 1J020-89810 MANUAL, INST $22.08 Genuine Kubota manual, inst, part number 1J022-89810 — Alpine Equipment 1J022-89810 MANUAL, INST $21.44 Genuine Kubota manual, inst, part number 1J017-89810 — Alpine Equipment 1J017-89810 MANUAL, INST $22.20 Genuine Kubota manual inst, part number 1J015-89810 — Alpine Equipment 1J015-89810 MANUAL INST $2.52 Genuine Kubota manual, inst, part number 1J019-89810 — Alpine Equipment 1J019-89810 MANUAL, INST $22.20 Genuine Kubota manual, inst, part number 1J018-89810 — Alpine Equipment 1J018-89810 MANUAL, INST $22.20 Genuine Kubota manual inst, part number 1J016-89810 — Alpine Equipment 1J016-89810 MANUAL INST $22.20 Genuine Kubota label pump, part number 1G790-87210 — Alpine Equipment 1G790-87210 LABEL PUMP $0.89 Genuine Kubota shaft, pump drive, part number 1G607-83182 — Alpine Equipment 1G607-83182 SHAFT, PUMP DRIVE $322.65 Genuine Kubota lamp indicator, part number 1G377-64490 — Alpine Equipment 1G377-64490 LAMP INDICATOR $22.08 Genuine Kubota terminal, part number 1C010-65910 — Alpine Equipment 1C010-65910 TERMINAL $2.17 Genuine Kubota connector, part number 1C010-65880 — Alpine Equipment 1C010-65880 CONNECTOR $16.98 Genuine Kubota connector, part number 19872-65840 — Alpine Equipment 19872-65840 CONNECTOR $1.95 Genuine Kubota terminal, part number 19268-65930 — Alpine Equipment 19268-65930 TERMINAL $2.12 Genuine Kubota sleeve, part number 19268-65870 — Alpine Equipment 19268-65870 SLEEVE $2.12 Genuine Kubota joint, part number 16541-95790 — Alpine Equipment 16541-95790 JOINT $12.85 Genuine Kubota bearing, ball(radial), part number 15478-26730 — Alpine Equipment 15478-26730 BEARING, BALL(RADIAL) $78.56 Genuine Kubota collar, part number 15469-83540 — Alpine Equipment 15469-83540 COLLAR $20.62 Genuine Kubota cir clip, internal, part number 15469-95470 — Alpine Equipment 15469-95470 CIR CLIP, INTERNAL $30.33 Genuine Kubota shaft, idle gear, part number 15469-83520 — Alpine Equipment 15469-83520 SHAFT, IDLE GEAR $85.63 Genuine Kubota base, o/p pump, part number 15469-83130 — Alpine Equipment 15469-83130 BASE, O/P PUMP $348.18 Genuine Kubota collar, part number 15469-83160 — Alpine Equipment 15469-83160 COLLAR $12.60 Genuine Kubota clamp, hose, part number 09318-88100 — Alpine Equipment 09318-88100 CLAMP, HOSE $1.39 Genuine Kubota cir-clip, external, part number 04612-00300 — Alpine Equipment 04612-00300 CIR-CLIP, EXTERNAL $0.90 Genuine Kubota bolt, part number 01133-51025 — Alpine Equipment 01133-51025 BOLT $1.12 Genuine Kubota bolt, part number 01123-50840 — Alpine Equipment 01123-50840 BOLT $1.12 Genuine Kubota bolt, part number 01123-50850 — Alpine Equipment 01123-50850 BOLT $1.50 Genuine Kubota tube pressure 2, part number 1J805-18650 — Alpine Equipment 1J805-18650 TUBE PRESSURE 2 $14.72 Genuine Kubota PIPE,COMP(PRESSURE,2, part number 1J804-18630 — Alpine Equipment 1J804-18630 PIPE,COMP(PRESSURE,2 $48.50 Genuine Kubota TUBE(PRESSURE,1), part number 1J801-18642 — Alpine Equipment 1J801-18642 TUBE(PRESSURE,1) $12.06 Genuine Kubota PIPE,COMP(PRESSURE,2, part number 1J801-18632 — Alpine Equipment 1J801-18632 PIPE,COMP(PRESSURE,2 $50.38 Genuine Kubota PIPE,COMP(PRESSURE,1, part number 1J801-18620 — Alpine Equipment 1J801-18620 PIPE,COMP(PRESSURE,1 $47.76 Genuine Kubota gear, idle, part number 1G607-83510 — Alpine Equipment 1G607-83510 GEAR, IDLE $432.42

More Kubota Engine Parts

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Need pricing on a Kubota D1803 engine or a rebuild?

We sell, exchange, and rebuild Kubota engines — and stock the parts to keep yours running. Call or send a quote request.

(801) 701-7394

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