Kubota D1503 Engine Parts

Alpine Equipment stocks OEM and aftermarket parts for the Kubota D1503 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 D1503 engine or a full rebuild? Call our factory-certified Kubota team at (801) 701-7394.

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Kubota D1503 diesel engine — genuine parts from Alpine Equipment Repair
  • Cylinders3
  • Displacement91.47 cu.in.
  • Bore & Stroke3.27 x 3.64 in
  • Rated Output31.9–33.4 HP
  • Max Torque70–75.2 lb-ft
  • AspirationNaturally aspirated
  • Dry Weight326–374 lbs

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

Kubota D1503 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

D1503 Engine Parts (502 parts)

Genuine Kubota tube,breather, part number 1G780-05510 — Alpine Equipment 1G780-05510 TUBE,BREATHER $33.81 Genuine Kubota gasket, part number 1G751-88130 — Alpine Equipment 1G751-88130 GASKET $3.40 Genuine Kubota gasket,fuel pump, part number 1G751-52140 — Alpine Equipment 1G751-52140 GASKET,FUEL PUMP $2.27 Genuine Kubota alternator,assy, part number 1G740-64010 — Alpine Equipment 1G740-64010 ALTERNATOR,ASSY $358.51 Genuine Kubota assy pump,injection, part number 1G711-51013 — Alpine Equipment 1G711-51013 ASSY PUMP,INJECTION $1,669.91 Genuine Kubota gasket,gear case, part number 1G701-04130 — Alpine Equipment 1G701-04130 GASKET,GEAR CASE $27.50 Genuine Kubota gauge, oil, part number 1G622-36414 — Alpine Equipment 1G622-36414 GAUGE, OIL $28.68 Genuine Kubota sensor(coolant temp., part number 1G498-83040 — Alpine Equipment 1G498-83040 SENSOR(COOLANT TEMP. $31.33 Genuine Kubota cover,alternator, part number 1G465-13860 — Alpine Equipment 1G465-13860 COVER,ALTERNATOR $32.97 Genuine Kubota filter,assy(separato, part number 1G381-43350 — Alpine Equipment 1G381-43350 FILTER,ASSY(SEPARATO $99.71 Genuine Kubota cock(drain), part number 1G377-73100 — Alpine Equipment 1G377-73100 COCK(DRAIN) $21.55 Genuine Kubota pump,assy(fuel), part number 1G377-52030 — Alpine Equipment 1G377-52030 PUMP,ASSY(FUEL) $145.91 Genuine Kubota apparatus,idling, part number 1G364-54160 — Alpine Equipment 1G364-54160 APPARATUS,IDLING $36.13 Genuine Kubota o-ring, part number 1G311-43570 — Alpine Equipment 1G311-43570 O-RING $4.27 Genuine Kubota element, part number 1G311-43380 — Alpine Equipment 1G311-43380 ELEMENT $32.92 Genuine Kubota separator, part number 1G311-43350 — Alpine Equipment 1G311-43350 SEPARATOR $286.77 Genuine Kubota assy cup,filter, part number 1G311-43100 — Alpine Equipment 1G311-43100 ASSY CUP,FILTER $28.24 Genuine Kubota cir-clip,internal, part number 1G279-21330 — Alpine Equipment 1G279-21330 CIR-CLIP,INTERNAL $3.37 Genuine Kubota shutoff-valve(drain), part number 1G171-73020 — Alpine Equipment 1G171-73020 SHUTOFF-VALVE(DRAIN) $16.95 Genuine Kubota sensor(revolution), part number 1G171-59660 — Alpine Equipment 1G171-59660 SENSOR(REVOLUTION) $50.24 Genuine Kubota seal,oil, part number 1EA12-04460 — Alpine Equipment 1EA12-04460 SEAL,OIL $21.21 Genuine Kubota cover thermostat, part number 1E282-73260 — Alpine Equipment 1E282-73260 COVER THERMOSTAT $30.38 Genuine Kubota assy coupler, part number 1C010-65830 — Alpine Equipment 1C010-65830 ASSY COUPLER $13.35 Genuine Kubota metal,side 2, 02, part number 1A091-23970 — Alpine Equipment 1A091-23970 METAL,SIDE 2, 02 $28.17 Genuine Kubota metal,side 1, 02, part number 1A091-23950 — Alpine Equipment 1A091-23950 METAL,SIDE 1, 02 $29.16 Genuine Kubota METAL,2.C/SHAFT.04, part number 1A091-23940 — Alpine Equipment 1A091-23940 METAL,2.C/SHAFT.04 $40.98 Genuine Kubota METAL,2.C/SHAFT.02, part number 1A091-23930 — Alpine Equipment 1A091-23930 METAL,2.C/SHAFT.02 $39.57 Genuine Kubota METAL,1.C/SHAFT.02, part number 1A091-23910 — Alpine Equipment 1A091-23910 METAL,1.C/SHAFT.02 $40.98 Genuine Kubota metal,side 2, part number 1A091-23542 — Alpine Equipment 1A091-23542 METAL,SIDE 2 $25.60 Genuine Kubota metal,side 1, part number 1A091-23532 — Alpine Equipment 1A091-23532 METAL,SIDE 1 $25.60 Genuine Kubota METAL,2.CRANKSHAFT, part number 1A091-23482 — Alpine Equipment 1A091-23482 METAL,2.CRANKSHAFT $36.17 Genuine Kubota METAL,1.CRANKSHAFT, part number 1A091-23472 — Alpine Equipment 1A091-23472 METAL,1.CRANKSHAFT $40.22 Genuine Kubota gasket,case cover na, part number 1A091-04820 — Alpine Equipment 1A091-04820 GASKET,CASE COVER NA $6.45 Genuine Kubota gasket,bearing case, part number 1A091-04362 — Alpine Equipment 1A091-04362 GASKET,BEARING CASE $10.90 Genuine Kubota bracket,accel.cable, part number 1A053-57482 — Alpine Equipment 1A053-57482 BRACKET,ACCEL.CABLE $10.96 Genuine Kubota gasket,water pump, part number 1A051-73430 — Alpine Equipment 1A051-73430 GASKET,WATER PUMP $9.30 Genuine Kubota assy pump,water, part number 1A051-73036 — Alpine Equipment 1A051-73036 ASSY PUMP,WATER $169.03 Genuine Kubota crankshaft,comp, part number 1A051-23020 — Alpine Equipment 1A051-23020 CRANKSHAFT,COMP $3,137.22 Genuine Kubota SPRING(GOVERNOR,1), part number 1A023-56417 — Alpine Equipment 1A023-56417 SPRING(GOVERNOR,1) $5.53 Genuine Kubota gasket,water pump na, part number 1A021-73430 — Alpine Equipment 1A021-73430 GASKET,WATER PUMP NA $6.26 Genuine Kubota pipe,water return, part number 1A021-73340 — Alpine Equipment 1A021-73340 PIPE,WATER RETURN $10.79 Genuine Kubota gasket,return flange, part number 1A021-73332 — Alpine Equipment 1A021-73332 GASKET,RETURN FLANGE $1.59 Genuine Kubota assy pump,water, part number 1A021-73036 — Alpine Equipment 1A021-73036 ASSY PUMP,WATER $167.78 Genuine Kubota assy thermostat, part number 1A021-73013 — Alpine Equipment 1A021-73013 ASSY THERMOSTAT $33.75 Genuine Kubota gasket,w/flange na, part number 1A021-72920 — Alpine Equipment 1A021-72920 GASKET,W/FLANGE NA $2.40 Genuine Kubota assy solenoid, part number 1A021-60017 — Alpine Equipment 1A021-60017 ASSY SOLENOID $173.75 Genuine Kubota gasket(plate), part number 1A021-57212 — Alpine Equipment 1A021-57212 GASKET(PLATE) $2.40 Genuine Kubota comp.guide,solenoid, part number 1A021-56602 — Alpine Equipment 1A021-56602 COMP.GUIDE,SOLENOID $9.43

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Need pricing on a Kubota D1503 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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