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)

T0430-38630 GEAR PUMP DRIVE $173.86 1J813-18800 BRACKET(V BAND,DPF) $204.47 1J800-59770 SENSOR,ASSY(CRANKANG $170.00 1J542-92500 NUT,FLANGE $1.48 1G311-43250 FLOAT $3.50 16691-57980 SEAL,OIL $6.04 01754-50640 BOLT,FLANGE $1.92 TC403-74250 PULLEY,FAN $48.50 TC402-74250 PULLEY,FAN $39.70 T1850-39010 SWITCH,OIL $37.97 T1063-65660 SENSOR,TEMPERATURE $20.15 T0430-33610 HOLDER, PUMP $54.78 T0070-16420 GASKET,MUFFLER NA $3.51 RD579-51310 CUP,ASSY $76.57 RD451-51940 ASSY ELEMENT $19.26 RD451-51930 O RING $4.95 RD451-51910 ASSY BODY $154.12 RD451-51360 ASSY FILTER $375.33 RD159-51940 ELEMENT,ASSY $77.47 RD159-51930 O-RING $5.46 R2401-42280 ELEMENT,INNER $25.08 R1401-42270 ELEMENT,OUTER $32.97 HH1J0-43172 FILTER(FUEL,CARTRIDG $37.40 HH164-32430 CARTRIDGE,OIL FILTER $13.58 EG661-72400 TANK, RESERVE ASSY $92.34 6C040-58580 CUSHION $2.59 5H937-42700 ALTERNATOR,ASSY $407.20 5H911-42622 SENSOR(REVOLUTION) $51.40 5H601-41940 SENSOR,W/TEMPERATURE $63.02 59800-26110 ELEMENT,OUTER A/C $28.91 48100-58474 ASSY TANK,RESERVE $104.59 3F750-11160 ASSY COVER,A/CLEANER $95.67 3A613-74010 ALTERNATOR(60A) $450.66 3A111-19130 ELEMENT,INNER $43.20 38240-36330 STUD $1.83 36530-24920 STUD $15.09 35260-37810 GEAR,SPUR 47 $145.39 1K583-72062 RADIATOR, ASSY $1,343.26 1K411-72400 ASSY TANK,RESERVE $92.34 1K371-63010 ASSY STARTER $678.52 1K321-73430 GASKET,WATER PUMP $5.46 1K321-73037 ASSY PUMP WATER $168.40 1J897-91020 BOLT FLANGE $7.18 1J897-17430 GASKET(EGR COOLER) $15.82 1J864-53620 PACKING $1.29 1J864-25160 BOLT(FLYWHEEL) $20.75 1J860-96650 GASKET $0.72 1J860-65512 GLOW PLUG $25.62

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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