Kubota WG2503 Engine Parts

Alpine Equipment stocks OEM and aftermarket parts for the Kubota WG2503 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 WG2503 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 WG2503 gas engine — genuine parts from Alpine Equipment Repair
  • Cylinders4
  • Displacement152.0 cu.in.
  • Bore & Stroke3.46 x 4.031 in
  • Rated Output56.8–61.7 HP
  • Max Torque118–131.3 lb-ft
  • AspirationNaturally aspirated
  • Dry Weight430–434 lbs

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

Kubota WG2503 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

WG2503 Engine Parts (109 parts)

Genuine Kubota injector, part number EG522-44020 — Alpine Equipment EG522-44020 INJECTOR $106.83 Genuine Kubota gasket(muffler), part number EG522-12370 — Alpine Equipment EG522-12370 GASKET(MUFFLER) $8.13 Genuine Kubota assy sensor,stick, part number E9121-68332 — Alpine Equipment E9121-68332 ASSY SENSOR,STICK $98.52 Genuine Kubota assy tank,reserve, part number 48100-58474 — Alpine Equipment 48100-58474 ASSY TANK,RESERVE $104.59 Genuine Kubota radiator, assy, part number 1K583-72062 — Alpine Equipment 1K583-72062 RADIATOR, ASSY $1,343.26 Genuine Kubota gauge eng. oil, part number 1J873-36412 — Alpine Equipment 1J873-36412 GAUGE ENG. OIL $28.68 Genuine Kubota plug,oil filter, part number 1J860-33140 — Alpine Equipment 1J860-33140 PLUG,OIL FILTER $5.65 Genuine Kubota clamp(wire), part number 1J508-65390 — Alpine Equipment 1J508-65390 CLAMP(WIRE) $1.93 Genuine Kubota comp.flywheel, part number 1J466-25010 — Alpine Equipment 1J466-25010 COMP.FLYWHEEL $1,103.18 Genuine Kubota cuchion,rubber, part number 1G932-72190 — Alpine Equipment 1G932-72190 CUCHION,RUBBER $31.22 Genuine Kubota rubber, part number 1G932-72180 — Alpine Equipment 1G932-72180 RUBBER $2.32 Genuine Kubota cushion,rubber, part number 1G930-72190 — Alpine Equipment 1G930-72190 CUSHION,RUBBER $25.25 Genuine Kubota base,oil filter, part number 1G905-32610 — Alpine Equipment 1G905-32610 BASE,OIL FILTER $74.35 Genuine Kubota pulley, fan drive, part number 1G778-74280 — Alpine Equipment 1G778-74280 PULLEY, FAN DRIVE $190.40 Genuine Kubota alternator,assy, part number 1G740-64010 — Alpine Equipment 1G740-64010 ALTERNATOR,ASSY $358.51 Genuine Kubota assy pump,water, part number 1G730-73036 — Alpine Equipment 1G730-73036 ASSY PUMP,WATER $184.68 Genuine Kubota hose,oil cooler, part number 1G730-37162 — Alpine Equipment 1G730-37162 HOSE,OIL COOLER $16.29 Genuine Kubota adapter,oilfilter, part number 1G489-32610 — Alpine Equipment 1G489-32610 ADAPTER,OILFILTER $34.32 Genuine Kubota plug,oil filter, part number 1G489-32370 — Alpine Equipment 1G489-32370 PLUG,OIL FILTER $32.12 Genuine Kubota pipe, water, part number 1G364-72940 — Alpine Equipment 1G364-72940 PIPE, WATER $40.68 Genuine Kubota assy alternator, part number 1G362-64010 — Alpine Equipment 1G362-64010 ASSY ALTERNATOR $429.99 Genuine Kubota stay dynamo, part number 1E466-64420 — Alpine Equipment 1E466-64420 STAY DYNAMO $47.50 Genuine Kubota alternator stay, part number 1E309-64350 — Alpine Equipment 1E309-64350 ALTERNATOR STAY $31.17 Genuine Kubota cover thermostat, part number 1E282-73260 — Alpine Equipment 1E282-73260 COVER THERMOSTAT $30.38 Genuine Kubota assy pump,water, part number 1E141-73035 — Alpine Equipment 1E141-73035 ASSY PUMP,WATER $168.60 Genuine Kubota assy pump,water, part number 1E017-73038 — Alpine Equipment 1E017-73038 ASSY PUMP,WATER $168.60 Genuine Kubota assy pump,oil, part number 1E013-35013 — Alpine Equipment 1E013-35013 ASSY PUMP,OIL $120.09 Genuine Kubota pulley,fan drive, part number 1A085-74280 — Alpine Equipment 1A085-74280 PULLEY,FAN DRIVE $154.63 Genuine Kubota switch,oil, part number 1A024-39010 — Alpine Equipment 1A024-39010 SWITCH,OIL $27.43 Genuine Kubota assy thermostat, part number 1A021-73013 — Alpine Equipment 1A021-73013 ASSY THERMOSTAT $33.75 Genuine Kubota gasket, pump cover, part number 1A021-51663 — Alpine Equipment 1A021-51663 GASKET, PUMP COVER $2.92 Genuine Kubota flange,oil filler, part number 1A021-33112 — Alpine Equipment 1A021-33112 FLANGE,OIL FILLER $12.60 Genuine Kubota assy alternator, part number 19279-64015 — Alpine Equipment 19279-64015 ASSY ALTERNATOR $575.96 Genuine Kubota assy alternator, part number 19260-64014 — Alpine Equipment 19260-64014 ASSY ALTERNATOR $445.48 Genuine Kubota comp.oil pan, part number 19077-01504 — Alpine Equipment 19077-01504 COMP.OIL PAN $241.34 Genuine Kubota kit tank,reserve, part number 19059-72090 — Alpine Equipment 19059-72090 KIT TANK,RESERVE $74.38 Genuine Kubota cap,radiator, part number 17580-16060 — Alpine Equipment 17580-16060 CAP,RADIATOR $37.31 Genuine Kubota fan, part number 17490-74112 — Alpine Equipment 17490-74112 FAN $177.42 Genuine Kubota assy starter, part number 17490-63014 — Alpine Equipment 17490-63014 ASSY STARTER $664.85 Genuine Kubota BELT(A-42.0), part number 17480-97010 — Alpine Equipment 17480-97010 BELT(A-42.0) $27.78 Genuine Kubota assy starter, part number 17381-63012 — Alpine Equipment 17381-63012 ASSY STARTER $607.35 Genuine Kubota BELT,FAN(43.0), part number 17123-97012 — Alpine Equipment 17123-97012 BELT,FAN(43.0) $26.46 Genuine Kubota BELT,FAN(40.0), part number 17112-97012 — Alpine Equipment 17112-97012 BELT,FAN(40.0) $25.11 Genuine Kubota fan, part number 16661-74110 — Alpine Equipment 16661-74110 FAN $78.56 Genuine Kubota element,breather, part number 16241-05670 — Alpine Equipment 16241-05670 ELEMENT,BREATHER $3.63 Genuine Kubota fan, part number 15809-74110 — Alpine Equipment 15809-74110 FAN $73.28 Genuine Kubota fan, part number 15807-74110 — Alpine Equipment 15807-74110 FAN $146.49 Genuine Kubota cap, part number 15531-72422 — Alpine Equipment 15531-72422 CAP $3.96

More Kubota Engine Parts

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Need pricing on a Kubota WG2503 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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