Isuzu 4BG1 Water Pump Parts Catalog for Hitachi ZX120

Use this Group 030 parts catalog to identify water pump assembly, repair kit, pulley, seals and internal components for the Isuzu 4BG1 configuration listed in the Hitachi ZX120 catalog. Compare 28 catalog entries, diagram positions and alternative number formats before requesting a quote from WinsDiesel.

Components Listed in This Group

View diagrams | Part number list | Selection notes | Request a quote

Selecting Water Pump

The catalog separately lists a water pump assembly described as supplied with a gasket, a pump-to-block gasket and a repair kit. Confirm the contents of the offered assembly or kit before requesting additional parts.

Catalog reference: Hitachi ZX120; engine configuration 4BG1-TCG. Confirm the engine serial number, machine details and complete existing part number before ordering. Different part numbers sharing one diagram position must not be assumed to be interchangeable.

Group 030 — Water Pump Diagrams

Diagram 1 — 4BG1-TCG-303001

Water Pump parts reference — drawing 4BG1-TCG-303001. Click to view the full-size diagram; use the positions and complete part numbers in the table below.

Diagram 2 — 4BG1-TCG-303002

Water Pump parts reference — drawing 4BG1-TCG-303002. Click to view the full-size diagram; use the positions and complete part numbers in the table below.

Catalog diagrams identify components and are not photographs of the supplied products.

Part Numbers and Catalog Notes

Alternative number formats show the same digits with different hyphen placement. They are not substitute part numbers. Quantities and notes are retained from the catalog and do not represent stock availability.

Ref.	Part Number	Alternative Number Formats	Catalog Description / Qty.	Original Catalog Notes	Enquiry
001(B).	8972530281	8-97253028-1 897253-0281 8-97253-028-1	PUMP ASM; WATER,W/GASKET Catalog qty: [1]	—	Request a Quote
003.	8943706610	8-94370661-0 894370-6610 8-94370-661-0	GASKET; PUMP TO C/BL Catalog qty: [1]	ALSO INCLUDED IN GASKET SET(ENGINE)	Request a Quote
004(B).	5878143200	5-87814320-0 587814-3200 5-87814-320-0	REPAIR KIT; WATER PUMP Catalog qty: [1]	—	Request a Quote
007(B).	1136411910	1-13641191-0 113641-1910 1-13641-191-0	PULLEY; WATER PUMP Catalog qty: [1]	2-GROOVE	Request a Quote
009.	9091801520	9-09180152-0 909180-1520 9-09180-152-0	RING; SNAP,WATER PUMP Catalog qty: [1]	—	Request a Quote
011.	5136340020	5-13634002-0 513634-0020 5-13634-002-0	SPACER; BRG,WATER PUMP Catalog qty: [1]	—	Request a Quote
016.	5096250550	5-09625055-0 509625-0550 5-09625-055-0	SEAL; OIL,WATER PUMP Catalog qty: [1]	—	Request a Quote
018.	8972322500	8-97232250-0 897232-2500 8-97232-250-0	IMPELLER; WATER PUMP Catalog qty: [1]	—	Request a Quote
019.	8972322480	8-97232248-0 897232-2480 8-97232-248-0	GASKET; COVER TO BODY Catalog qty: [1]	—	Request a Quote
020.	8972322470	8-97232247-0 897232-2470 8-97232-247-0	COVER; WATER PUMP Catalog qty: [1]	—	Request a Quote
025.	5136420072	5-13642007-2 513642-0072 5-13642-007-2	CENTER; WATER PUMP Catalog qty: [1]	—	Request a Quote
026.	5136390010	5-13639001-0 513639-0010 5-13639-001-0	COVER; DUST,WATER PUMP Catalog qty: [1]	—	Request a Quote
027(A).	5098000510	5-09800051-0 509800-0510 5-09800-051-0	BEARING; WATER PUMP Catalog qty: [1]	—	Request a Quote
027(B).	5098000500	5-09800050-0 509800-0500 5-09800-050-0	BEARING; WATER PUMP Catalog qty: [1]	—	Request a Quote
027(C).	1098001700	1-09800170-0 109800-1700 1-09800-170-0	BEARING; WATER PUMP Catalog qty: [1]	—	Request a Quote
028.	1095030700	1-09503070-0 109503-0700 1-09503-070-0	WASHER; WATER PUMP Catalog qty: [1]	—	Request a Quote
029.	1136310740	1-13631074-0 113631-0740 1-13631-074-0	SHAFT; WATER PUMP Catalog qty: [1]	—	Request a Quote
030.	9099521430	9-09952143-0 909952-1430 9-09952-143-0	RING; SNAP,WATER PUMP SHAFT Catalog qty: [1]	—	Request a Quote
031.	8972236600	8-97223660-0 897223-6600 8-97223-660-0	PIPE; SUCTION,INL Catalog qty: [1]	—	Request a Quote
031.	8972498951	8-97249895-1 897249-8951 8-97249-895-1	PIPE; SUCTION,INL Catalog qty: [1]	—	Request a Quote
032.	8972322490	8-97232249-0 897232-2490 8-97232-249-0	SEAL UNIT; WATER PUMP Catalog qty: [1]	—	Request a Quote
034.	9030908200	9-03090820-0 903090-8200 9-03090-820-0	SCREW; COVER TO BODY,WATER PUMP Catalog qty: [3]	—	Request a Quote
036.	0280810350	0-28081035-0 028081-0350 0-28081-035-0	BOLT; WATER PUMP TO C/BL Catalog qty: [1]	A M10X35 FLANGE	Request a Quote
036.	0280810450	0-28081045-0 028081-0450 0-28081-045-0	BOLT; WATER PUMP TO C/BL Catalog qty: [2]	A M10X45 FLANGE	Request a Quote
036.	0280810700	0-28081070-0 028081-0700 0-28081-070-0	BOLT; WATER PUMP TO C/BL Catalog qty: [1]	A M10X70 FLANGE	Request a Quote
036.	0280510350	0-28051035-0 028051-0350 0-28051-035-0	BOLT; WATER PUMP TO C/BL Catalog qty: [1]	M10X35 FLANGE	Request a Quote
036.	0280510450	0-28051045-0 028051-0450 0-28051-045-0	BOLT; WATER PUMP TO C/BL Catalog qty: [2]	M10X45 FLANGE	Request a Quote
036.	0280510700	0-28051070-0 028051-0700 0-28051-070-0	BOLT; WATER PUMP TO C/BL Catalog qty: [1]	M10X70 FLANGE	Request a Quote

Reading This Catalog

Descriptions and notes retain the original catalog wording. Abbreviations, grade markers and size notes should be checked together with the complete part number. Contact us if your existing number differs; a similar appearance or diagram position is not proof of interchangeability.

Request a Quote from WinsDiesel

Email winsparts@winsparts.com or use the enquiry link beside your required part. Include the complete part number, quantity, engine serial number, machine identification, old-part photos and delivery country. We will confirm the offered brand, specification, availability, supplied contents, price and lead time in our quotation.

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Tag: Hitachi ZX120, Isuzu 4BG1, Parts Catalog