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 bolt, sems, part number 1A021-91030 — Alpine Equipment 1A021-91030 BOLT, SEMS $2.18 Genuine Kubota impeller, water pump, part number 1A021-73510 — Alpine Equipment 1A021-73510 IMPELLER, WATER PUMP $25.77 Genuine Kubota plug, part number 1A021-96020 — Alpine Equipment 1A021-96020 PLUG $5.12 Genuine Kubota bolt, part number 1A021-91020 — Alpine Equipment 1A021-91020 BOLT $2.55 Genuine Kubota bolt, adjusting, part number 1A021-57390 — Alpine Equipment 1A021-57390 BOLT, ADJUSTING $8.62 Genuine Kubota flange, part number 1A021-73520 — Alpine Equipment 1A021-73520 FLANGE $52.32 Genuine Kubota spring, return, part number 1A021-57920 — Alpine Equipment 1A021-57920 SPRING, RETURN $7.78 Genuine Kubota lever, fork, part number 1A021-56133 — Alpine Equipment 1A021-56133 LEVER, FORK $49.55 Genuine Kubota comp.lever, part number 1A021-56020 — Alpine Equipment 1A021-56020 COMP.LEVER $31.13 Genuine Kubota lever, engine stop, part number 1A021-57720 — Alpine Equipment 1A021-57720 LEVER, ENGINE STOP $22.26 Genuine Kubota comp lever, stop, part number 1A021-57710 — Alpine Equipment 1A021-57710 COMP LEVER, STOP $24.83 Genuine Kubota assy, bolt, part number 1A021-54350 — Alpine Equipment 1A021-54350 ASSY, BOLT $5.28 Genuine Kubota shaft, idle gear, part number 1A021-24254 — Alpine Equipment 1A021-24254 SHAFT, IDLE GEAR $99.62 Genuine Kubota piston, part number 1A021-21112 — Alpine Equipment 1A021-21112 PISTON $156.90 Genuine Kubota shaft, rocker arm, part number 1A021-14260 — Alpine Equipment 1A021-14260 SHAFT, ROCKER ARM $89.04 Genuine Kubota joint, part number 1A021-32290 — Alpine Equipment 1A021-32290 JOINT $31.41 Genuine Kubota collar, part number 1A021-24370 — Alpine Equipment 1A021-24370 COLLAR $9.72 Genuine Kubota pin, straight, part number 1A021-23190 — Alpine Equipment 1A021-23190 PIN, STRAIGHT $11.71 Genuine Kubota clamp, hose, part number 1A021-11720 — Alpine Equipment 1A021-11720 CLAMP, HOSE $2.89 Genuine Kubota terminal(m), part number 19844-65770 — Alpine Equipment 19844-65770 TERMINAL(M) $2.65 Genuine Kubota assy shaft, cam, part number 1A021-16010 — Alpine Equipment 1A021-16010 ASSY SHAFT, CAM $499.86 Genuine Kubota piston 025, part number 1A021-21902 — Alpine Equipment 1A021-21902 PISTON 025 $156.90 Genuine Kubota comp.cylinder head, part number 1A013-03044 — Alpine Equipment 1A013-03044 COMP.CYLINDER HEAD $1,397.25 Genuine Kubota connector, part number 19872-65840 — Alpine Equipment 19872-65840 CONNECTOR $1.95 Genuine Kubota oil pan, part number 19299-01616 — Alpine Equipment 19299-01616 OIL PAN $186.62 Genuine Kubota terminal, part number 19268-65930 — Alpine Equipment 19268-65930 TERMINAL $2.12 Genuine Kubota ball, part number 19212-97130 — Alpine Equipment 19212-97130 BALL $0.45 Genuine Kubota sleeve, part number 19268-65870 — Alpine Equipment 19268-65870 SLEEVE $2.12 Genuine Kubota roller, part number 19212-63100 — Alpine Equipment 19212-63100 ROLLER $1.04 Genuine Kubota housing, flywheel, part number 19077-04610 — Alpine Equipment 19077-04610 HOUSING, FLYWHEEL $984.72 Genuine Kubota gear, pinion, part number 17381-63280 — Alpine Equipment 17381-63280 GEAR, PINION $70.39 Genuine Kubota bolt, part number 17367-91010 — Alpine Equipment 17367-91010 BOLT $3.02 Genuine Kubota frame, end, part number 17341-63200 — Alpine Equipment 17341-63200 FRAME, END $68.82 Genuine Kubota clutch, over running, part number 17341-63040 — Alpine Equipment 17341-63040 CLUTCH, OVER RUNNING $329.05 Genuine Kubota bolt, part number 17367-91020 — Alpine Equipment 17367-91020 BOLT $3.02 Genuine Kubota metal, crankpin 04, part number 17311-22980 — Alpine Equipment 17311-22980 METAL, CRANKPIN 04 $26.84 Genuine Kubota frame, drive end, part number 17341-63030 — Alpine Equipment 17341-63030 FRAME, DRIVE END $118.57 Genuine Kubota metal, c/shaft 1 04, part number 17311-23920 — Alpine Equipment 17311-23920 METAL, C/SHAFT 1 04 $39.57 Genuine Kubota assy switch, part number 17298-63020 — Alpine Equipment 17298-63020 ASSY SWITCH $395.36 Genuine Kubota joint, breather, part number 17182-05550 — Alpine Equipment 17182-05550 JOINT, BREATHER $9.95 Genuine Kubota cover, end, part number 16678-64230 — Alpine Equipment 16678-64230 COVER, END $36.60 Genuine Kubota assy coupler, part number 16662-65830 — Alpine Equipment 16662-65830 ASSY COUPLER $13.61 Genuine Kubota bearing, ball(radial), part number 16661-73550 — Alpine Equipment 16661-73550 BEARING, BALL(RADIAL) $51.85 Genuine Kubota bearing, ball, part number 16652-64770 — Alpine Equipment 16652-64770 BEARING, BALL $28.79 Genuine Kubota holder, brush, part number 16652-64310 — Alpine Equipment 16652-64310 HOLDER, BRUSH $52.32 Genuine Kubota assy yoke, part number 16661-63080 — Alpine Equipment 16661-63080 ASSY YOKE $394.56 Genuine Kubota band, part number 16612-63100 — Alpine Equipment 16612-63100 BAND $17.96 Genuine Kubota cord, stop solenoid, part number 16611-63660 — Alpine Equipment 16611-63660 CORD, STOP SOLENOID $7.16

More Kubota Engine Parts

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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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