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.

☎ Call for Pricing — (801) 701-7394 Request a Quote
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 SPRING(GOVERNOR,2), part number 1A021-56422 — Alpine Equipment 1A021-56422 SPRING(GOVERNOR,2) $2.92 Genuine Kubota apparatus,idling, part number 1A021-54160 — Alpine Equipment 1A021-54160 APPARATUS,IDLING $74.79 Genuine Kubota gasket,fuel pump na, part number 1A021-52140 — Alpine Equipment 1A021-52140 GASKET,FUEL PUMP NA $0.93 Genuine Kubota gasket, pump cover, part number 1A021-51663 — Alpine Equipment 1A021-51663 GASKET, PUMP COVER $2.92 Genuine Kubota gasket,oil pump na, part number 1A021-35150 — Alpine Equipment 1A021-35150 GASKET,OIL PUMP NA $1.20 Genuine Kubota flange,oil filler, part number 1A021-33112 — Alpine Equipment 1A021-33112 FLANGE,OIL FILLER $12.60 Genuine Kubota bush,idle gear, part number 1A021-24982 — Alpine Equipment 1A021-24982 BUSH,IDLE GEAR $19.08 Genuine Kubota pin,straight, part number 1A021-23192 — Alpine Equipment 1A021-23192 PIN,STRAIGHT $1.74 Genuine Kubota piston pin, part number 1A021-21310 — Alpine Equipment 1A021-21310 PISTON PIN $6.47 Genuine Kubota gasket,head cover, part number 1A021-14523 — Alpine Equipment 1A021-14523 GASKET,HEAD COVER $14.44 Genuine Kubota gasket,ex-manifold, part number 1A021-12350 — Alpine Equipment 1A021-12350 GASKET,EX-MANIFOLD $12.07 Genuine Kubota gasket,in-manifold, part number 1A021-11822 — Alpine Equipment 1A021-11822 GASKET,IN-MANIFOLD $7.89 Genuine Kubota gasket,gear case na, part number 1A021-04130 — Alpine Equipment 1A021-04130 GASKET,GEAR CASE NA $25.80 Genuine Kubota collar,fan, part number 19818-74150 — Alpine Equipment 19818-74150 COLLAR,FAN $24.96 Genuine Kubota fan, part number 19629-74110 — Alpine Equipment 19629-74110 FAN $86.21 Genuine Kubota assy thermoswitch, part number 19498-83044 — Alpine Equipment 19498-83044 ASSY THERMOSWITCH $60.47 Genuine Kubota assy cleaner,air, part number 19494-11010 — Alpine Equipment 19494-11010 ASSY CLEANER,AIR $482.54 Genuine Kubota bolt, part number 19416-91010 — Alpine Equipment 19416-91010 BOLT $16.35 Genuine Kubota assy alternator, part number 19279-64015 — Alpine Equipment 19279-64015 ASSY ALTERNATOR $575.96 Genuine Kubota assy terminal, part number 19268-65780 — Alpine Equipment 19268-65780 ASSY TERMINAL $4.34 Genuine Kubota terminal, part number 19237-65910 — Alpine Equipment 19237-65910 TERMINAL $1.17 Genuine Kubota sleeve,crankshaft, part number 19202-23280 — Alpine Equipment 19202-23280 SLEEVE,CRANKSHAFT $28.75 Genuine Kubota collar,crankshaft, part number 19202-23250 — Alpine Equipment 19202-23250 COLLAR,CRANKSHAFT $28.50 Genuine Kubota pipe,injection 3, part number 19077-53733 — Alpine Equipment 19077-53733 PIPE,INJECTION 3 $40.10 Genuine Kubota pipe,injection 2, part number 19077-53723 — Alpine Equipment 19077-53723 PIPE,INJECTION 2 $43.46 Genuine Kubota pipe,injection 1, part number 19077-53714 — Alpine Equipment 19077-53714 PIPE,INJECTION 1 $43.46 Genuine Kubota seal,heat, part number 19077-53650 — Alpine Equipment 19077-53650 SEAL,HEAT $5.44 Genuine Kubota rod,push, part number 19013-15110 — Alpine Equipment 19013-15110 ROD,PUSH $6.22 Genuine Kubota bolt,cylinder head, part number 19013-03450 — Alpine Equipment 19013-03450 BOLT,CYLINDER HEAD $9.58 Genuine Kubota cap,radiator, part number 17580-16060 — Alpine Equipment 17580-16060 CAP,RADIATOR $37.31 Genuine Kubota assy pump,fuel, part number 17539-52033 — Alpine Equipment 17539-52033 ASSY PUMP,FUEL $135.06 Genuine Kubota BELT(A-42.0), part number 17480-97010 — Alpine Equipment 17480-97010 BELT(A-42.0) $27.78 Genuine Kubota guide,oil gauge, part number 17456-36420 — Alpine Equipment 17456-36420 GUIDE,OIL GAUGE $21.50 Genuine Kubota assy switch,starter, part number 17422-63590 — Alpine Equipment 17422-63590 ASSY SWITCH,STARTER $77.87 Genuine Kubota plug, part number 17391-96160 — Alpine Equipment 17391-96160 PLUG $0.64 Genuine Kubota assy starter, part number 17381-63012 — Alpine Equipment 17381-63012 ASSY STARTER $607.35 Genuine Kubota fan, part number 17373-74110 — Alpine Equipment 17373-74110 FAN $113.61 Genuine Kubota fan, part number 17371-74110 — Alpine Equipment 17371-74110 FAN $104.82 Genuine Kubota pulley,fan, part number 17351-74250 — Alpine Equipment 17351-74250 PULLEY,FAN $48.50 Genuine Kubota pipe 1,RETURN, part number 17331-73342 — Alpine Equipment 17331-73342 PIPE 1,RETURN $5.78 Genuine Kubota bush,piston pin, part number 17331-21982 — Alpine Equipment 17331-21982 BUSH,PISTON PIN $8.24 Genuine Kubota metal,c/shaft 1 02, part number 17311-23910 — Alpine Equipment 17311-23910 METAL,C/SHAFT 1 02 $39.57 Genuine Kubota metal,crankshaft, part number 17311-23472 — Alpine Equipment 17311-23472 METAL,CRANKSHAFT $39.57 Genuine Kubota metal,crankpin 02, part number 17311-22970 — Alpine Equipment 17311-22970 METAL,CRANKPIN 02 $27.48 Genuine Kubota metal,crankpin, part number 17311-22312 — Alpine Equipment 17311-22312 METAL,CRANKPIN $27.77 Genuine Kubota rod,connecting,assy, part number 17311-22014 — Alpine Equipment 17311-22014 ROD,CONNECTING,ASSY $376.05 Genuine Kubota assy starter, part number 17298-63010 — Alpine Equipment 17298-63010 ASSY STARTER $554.40 Genuine Kubota holder,filter, part number 17298-43430 — Alpine Equipment 17298-43430 HOLDER,FILTER $11.63

More Kubota Engine Parts

→ Kubota Industrial Engine Parts & Service hub

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

Call or Text — Factory-Certified Kubota Elite Dealer

★ 4.9 Google Rating ⏱ Mon–Fri 7a–5p 🚚 Nationwide Shipping

349 S 100 W, American Fork, UT 84003 · Mon–Fri 7:00 AM – 5:00 PM · Sat by Appt