Kubota WG3800 Engine Parts

Alpine Equipment stocks OEM and aftermarket parts for the Kubota WG3800 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 WG3800 engine or a full rebuild? Call our factory-certified Kubota team at (801) 701-7394.

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Kubota WG3800 gas engine — genuine parts from Alpine Equipment Repair
  • Cylinders4
  • Displacement230.0 cu.in.
  • Bore & Stroke3.937 x 4.724 in
  • Rated Output87.1–93.8 HP
  • Max Torque188.9–213.9 lb-ft
  • AspirationNaturally aspirated
  • Dry Weight635 lbs

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

Kubota WG3800 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

WG3800 Engine Parts (69 parts)

Genuine Kubota SENSOR(O2), part number EG523-12240 — Alpine Equipment EG523-12240 SENSOR(O2) $243.10 Genuine Kubota gasket,ex-manifold, part number 1J550-12352 — Alpine Equipment 1J550-12352 GASKET,EX-MANIFOLD $13.85 Genuine Kubota relay, part number 1J423-60233 — Alpine Equipment 1J423-60233 RELAY $36.97 Genuine Kubota comp.flywheel, part number 1G517-25019 — Alpine Equipment 1G517-25019 COMP.FLYWHEEL $1,204.16 Genuine Kubota support alternator, part number 1E327-64352 — Alpine Equipment 1E327-64352 SUPPORT ALTERNATOR $113.14 Genuine Kubota guide, oil gauge, part number 1C010-36422 — Alpine Equipment 1C010-36422 GUIDE, OIL GAUGE $12.07 Genuine Kubota stay, dynamo, part number 17490-64472 — Alpine Equipment 17490-64472 STAY, DYNAMO $7.23 Genuine Kubota ecu assy 38AIE1G, part number EH211-60203 — Alpine Equipment EH211-60203 ECU ASSY 38AIE1G $1,680.25 Genuine Kubota ecu assy 38EPS1G, part number EH178-60204 — Alpine Equipment EH178-60204 ECU ASSY 38EPS1G $1,446.21 Genuine Kubota tank, reserve assy, part number EG661-72400 — Alpine Equipment EG661-72400 TANK, RESERVE ASSY $92.34 Genuine Kubota cover,comp(fbox,top), part number EG554-65420 — Alpine Equipment EG554-65420 COVER,COMP(FBOX,TOP) $51.12 Genuine Kubota plate, part number EG554-65220 — Alpine Equipment EG554-65220 PLATE $2.49 Genuine Kubota sensor(cam), part number EG543-68330 — Alpine Equipment EG543-68330 SENSOR(CAM) $67.81 Genuine Kubota valve lockoff, part number EG542-99760 — Alpine Equipment EG542-99760 VALVE LOCKOFF $78.83 Genuine Kubota adapter ecom, part number EG526-90320 — Alpine Equipment EG526-90320 ADAPTER ECOM $175.08 Genuine Kubota cover comp top, part number EG526-65420 — Alpine Equipment EG526-65420 COVER COMP TOP $57.92 Genuine Kubota connector assy vap, part number EG525-46960 — Alpine Equipment EG525-46960 CONNECTOR ASSY VAP $13.80 Genuine Kubota adapter dst i, part number EG523-90320 — Alpine Equipment EG523-90320 ADAPTER DST I $253.82 Genuine Kubota cable,assy, part number EG523-90062 — Alpine Equipment EG523-90062 CABLE,ASSY $746.38 Genuine Kubota spark plug, part number EG523-67710 — Alpine Equipment EG523-67710 SPARK PLUG $32.23 Genuine Kubota coil ignition, part number EG523-67090 — Alpine Equipment EG523-67090 COIL IGNITION $125.78 Genuine Kubota rubber sealing d-epr, part number EG523-46980 — Alpine Equipment EG523-46980 RUBBER SEALING D-EPR $10.56 Genuine Kubota rubber sealing d-epr, part number EG523-46970 — Alpine Equipment EG523-46970 RUBBER SEALING D-EPR $8.86 Genuine Kubota rubber sealing d-epr, part number EG523-46960 — Alpine Equipment EG523-46960 RUBBER SEALING D-EPR $5.55 Genuine Kubota valve[lockoff], part number EG523-46950 — Alpine Equipment EG523-46950 VALVE[LOCKOFF] $376.11 Genuine Kubota regulator, part number EG523-46943 — Alpine Equipment EG523-46943 REGULATOR $985.10 Genuine Kubota regulator assy, part number EG523-46923 — Alpine Equipment EG523-46923 REGULATOR ASSY $1,009.02 Genuine Kubota flange[inlet], part number EG523-44940 — Alpine Equipment EG523-44940 FLANGE[INLET] $24.94 Genuine Kubota sensor[tmap], part number EG523-44800 — Alpine Equipment EG523-44800 SENSOR[TMAP] $154.43 Genuine Kubota GASKET[MUFFLER,2], part number EG523-12380 — Alpine Equipment EG523-12380 GASKET[MUFFLER,2] $7.89 Genuine Kubota GASKET[MUFFLER,1], part number EG523-12370 — Alpine Equipment EG523-12370 GASKET[MUFFLER,1] $7.44 Genuine Kubota sensor[knock], part number EG523-03800 — Alpine Equipment EG523-03800 SENSOR[KNOCK] $226.10 Genuine Kubota manifold[fpm], part number EG522-52070 — Alpine Equipment EG522-52070 MANIFOLD[FPM] $878.47 Genuine Kubota pump fuel, part number EG522-52020 — Alpine Equipment EG522-52020 PUMP FUEL $275.36 Genuine Kubota gasket inlet, part number EG507-11730 — Alpine Equipment EG507-11730 GASKET INLET $22.16 Genuine Kubota stud M8X23, part number EG505-91492 — Alpine Equipment EG505-91492 STUD M8X23 $9.72 Genuine Kubota bolt,flange, part number EG505-91060 — Alpine Equipment EG505-91060 BOLT,FLANGE $2.21 Genuine Kubota bolt flange, part number EG505-91010 — Alpine Equipment EG505-91010 BOLT FLANGE $3.05 Genuine Kubota gasket head cover, part number EG505-14520 — Alpine Equipment EG505-14520 GASKET HEAD COVER $49.06 Genuine Kubota spring valve, part number EG505-13240 — Alpine Equipment EG505-13240 SPRING VALVE $11.84 Genuine Kubota valve exhaust, part number EG505-13120 — Alpine Equipment EG505-13120 VALVE EXHAUST $26.63 Genuine Kubota valve inlet, part number EG505-13110 — Alpine Equipment EG505-13110 VALVE INLET $26.84 Genuine Kubota gasket inlet, part number EG505-11820 — Alpine Equipment EG505-11820 GASKET INLET $14.06 Genuine Kubota assy cylinder head, part number EG505-03022 — Alpine Equipment EG505-03022 ASSY CYLINDER HEAD $1,304.39 Genuine Kubota gauge eng oil, part number EG504-36410 — Alpine Equipment EG504-36410 GAUGE ENG OIL $30.50 Genuine Kubota assy tank,reserve, part number 48100-58474 — Alpine Equipment 48100-58474 ASSY TANK,RESERVE $104.59 Genuine Kubota stud, part number 36530-24920 — Alpine Equipment 36530-24920 STUD $15.09 Genuine Kubota gasket,water pump su, part number 1J550-73762 — Alpine Equipment 1J550-73762 GASKET,WATER PUMP SU $7.18

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Need pricing on a Kubota WG3800 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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