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.

☎ Call for Pricing — (801) 701-7394 Request a Quote
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.

D1803 Engine Parts (469 parts)

1G657-11472 VALVE $9.27 1G639-52035 ASSY PUMP,FUEL $151.03 1G608-74120 COVER $98.60 1G608-36410 GAUGE OIL $30.74 1G607-83510 GEAR, IDLE $432.42 1G607-83180 SHAFT $322.65 1G513-36550 PLUG,OIL GAUGE $2.86 1G498-83040 SENSOR(COOLANT TEMP. $31.33 1G492-16220 GASKET $3.81 1G489-73035 ASSY PUMP WATER $169.80 1G489-32610 ADAPTER,OILFILTER $34.32 1G489-32370 PLUG,OIL FILTER $32.12 1G465-13860 COVER,ALTERNATOR $32.97 1G462-99350 KIT GASKET U,D1703/1803,M E2B $183.46 1G382-97010 BELT V,40.5A COGGED $24.67 1G377-73100 COCK(DRAIN) $21.55 1G377-52030 PUMP,ASSY(FUEL) $145.91 1G364-72940 PIPE, WATER $40.68 1G362-64010 ASSY ALTERNATOR $429.99 1G355-97010 BELT,V $25.93 1G311-43570 O-RING $4.27 1G311-43380 ELEMENT $32.92 1G311-43350 SEPARATOR $286.77 1G311-43100 ASSY CUP,FILTER $28.24 1G279-21330 CIR-CLIP,INTERNAL $3.37 1G171-73020 SHUTOFF-VALVE(DRAIN) $16.95 1G171-59660 SENSOR(REVOLUTION) $50.24 1EA12-04460 SEAL,OIL $21.21 1E886-53620 PACKING $0.98 1E789-43350 FILTER ASSY $454.35 1E786-43060 FILTER WS $73.48 1E752-43880 SWITCH ASSY $198.22 1E696-65034 HARNESS,WIRE,ASSY $3,700.07 1E694-65043 HARNESS,WIRE,ASSY $176.25 1E694-65034 HARNESS,WIRE,ASSY $3,700.07 1E549-11013 CLEANER AIR ASSY $506.87 1E531-65064 HARNESS,WIRE,ASSY(EN $1,321.35 1E475-05750 HEATER $208.54 1E466-64420 STAY DYNAMO $47.50 1E461-65064 HARNESS,WIRE,ASSY(EN $1,586.26 1E457-12322 FLANGE MUFFLER $208.05 1E441-11250 BRACKET $78.03 1E426-65076 HARNESS,WIRE,ASSY $278.69 1E426-04130 GASKET GEAR $26.36 1E417-72700 COMP FLANGE WATER $153.06 1E417-18950 BODY,KIT $554.54 1E401-73012 THERMOSTAT,ASSY $30.87 1E309-64350 ALTERNATOR STAY $31.17

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