Isuzu 4BG1 Crankshaft, Piston and Flywheel Parts Catalog for Hitachi ZX120
Use this Group 015 parts catalog to identify crankshaft, pistons, ring sets, connecting rods, bearings and flywheel parts for the Isuzu 4BG1 configuration listed in the Hitachi ZX120 catalog. Compare 30 catalog entries, diagram positions and alternative number formats before requesting a quote from WinsDiesel.
Components Listed in This Group
- CRANKSHAFT
- METAL KIT; CRANKSHAFT,STANDARD
- FLYWHEEL
- GEAR; CR/SHF
- PIN; FLYWHEEL
- GEAR; RING
- WASHER; FLYWHEEL
- BOLT; FLYWHEEL
- WASHER; THRUST,CR/SHF
- NUT; CR/SHF FRT
View diagrams | Part number list | Selection notes | Request a quote
Selecting Crankshaft, Piston and Flywheel
Bearing descriptions and any standard or size notes need to be checked against the engine being repaired. A position in an exploded diagram does not provide the measured journal size or establish which repair specification is required.
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 015 — Crankshaft, Piston and Flywheel Diagrams
Diagram 1 — 4BG1-TCG-301501
Crankshaft, Piston and Flywheel parts reference — drawing 4BG1-TCG-301501. 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(A). | 8943398951 | 8-94339895-1 894339-8951 8-94339-895-1 |
CRANKSHAFT Catalog qty: [1] |
C | Request a Quote |
| 001(A). | 8973581441 | 8-97358144-1 897358-1441 8-97358-144-1 |
CRANKSHAFT Catalog qty: [1] |
— | Request a Quote |
| 007. | 8941170322 | 8-94117032-2 894117-0322 8-94117-032-2 |
METAL KIT; CRANKSHAFT,STANDARD Catalog qty: [1] |
— | Request a Quote |
| 007. | 8970716610 | 8-97071661-0 897071-6610 8-97071-661-0 |
METAL KIT; CRANKSHAFT,STANDARD Catalog qty: [1] |
— | Request a Quote |
| 012(D). | 8971069894 | 8-97106989-4 897106-9894 8-97106-989-4 |
FLYWHEEL Catalog qty: [1] |
— | Request a Quote |
| 012(D). | 8973498782 | 8-97349878-2 897349-8782 8-97349-878-2 |
FLYWHEEL Catalog qty: [1] |
— | Request a Quote |
| 028(A). | 8971379102 | 8-97137910-2 897137-9102 8-97137-910-2 |
GEAR; CR/SHF Catalog qty: [1] |
Z=25 | Request a Quote |
| 032. | 9081612200 | 9-08161220-0 908161-2200 9-08161-220-0 |
PIN; FLYWHEEL Catalog qty: [1] |
OD=12 L=20 | Request a Quote |
| 035. | 8971759020 | 8-97175902-0 897175-9020 8-97175-902-0 |
GEAR; RING Catalog qty: [1] |
— | Request a Quote |
| 038. | 5123360030 | 5-12336003-0 512336-0030 5-12336-003-0 |
WASHER; FLYWHEEL Catalog qty: [1] |
— | Request a Quote |
| 040. | 5123340030 | 5-12334003-0 512334-0030 5-12334-003-0 |
BOLT; FLYWHEEL Catalog qty: [6] |
M14X36 | Request a Quote |
| 042. | 8970713580 | 8-97071358-0 897071-3580 8-97071-358-0 |
WASHER; THRUST,CR/SHF Catalog qty: [2] |
— | Request a Quote |
| 044(A). | 5123780020 | 5-12378002-0 512378-0020 5-12378-002-0 |
NUT; CR/SHF FRT Catalog qty: [1] |
A | Request a Quote |
| 044(A). | 8973596160 | 8-97359616-0 897359-6160 8-97359-616-0 |
NUT; CR/SHF FRT Catalog qty: [1] |
— | Request a Quote |
| 048(A). | 8941075970 | 8-94107597-0 894107-5970 8-94107-597-0 |
KEY; WOODRUFF,CR/SHF Catalog qty: [2] |
— | Request a Quote |
| 056(C). | 8971720400 | 8-97172040-0 897172-0400 8-97172-040-0 |
PULLEY; CR/SHF DAMPER Catalog qty: [1] |
3-GROOVE | Request a Quote |
| 059(A). | 5095030240 | 5-09503024-0 509503-0240 5-09503-024-0 |
WASHER; CR/SHF PULLEY Catalog qty: [1] |
— | Request a Quote |
| 063. | 8972543510 | 8-97254351-0 897254-3510 8-97254-351-0 |
PISTON Catalog qty: [4] |
GRADE=AX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 063. | 8972543520 | 8-97254352-0 897254-3520 8-97254-352-0 |
PISTON Catalog qty: [4] |
GRADE=CX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 063. | 8972873990 | 8-97287399-0 897287-3990 8-97287-399-0 |
PISTON Catalog qty: [4] |
GRADE=AX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 063. | 8972874000 | 8-97287400-0 897287-4000 8-97287-400-0 |
PISTON Catalog qty: [4] |
GRADE=CX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 063. | 8973585740 | 8-97358574-0 897358-5740 8-97358-574-0 |
PISTON Catalog qty: [4] |
GRADE=AX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 063. | 8973585750 | 8-97358575-0 897358-5750 8-97358-575-0 |
PISTON Catalog qty: [4] |
GRADE=CX<BR>ALSO INCLUDED IN LINER SET. | Request a Quote |
| 068. | 1121211460 | 1-12121146-0 112121-1460 1-12121-146-0 |
RING SET; PISTON,STANDARD Catalog qty: [4] |
ALSO INCLUDED IN LINER SET. | Request a Quote |
| 073. | 9122716080 | 9-12271608-0 912271-6080 9-12271-608-0 |
METAL SET; CONN ROD,STANDARD Catalog qty: [4] |
— | Request a Quote |
| 083. | 1122110332 | 1-12211033-2 112211-0332 1-12211-033-2 |
PIN; PISTON Catalog qty: [4] |
ALSO INCLUDED IN LINER SET. | Request a Quote |
| 084. | 1122301292 | 1-12230129-2 112230-1292 1-12230-129-2 |
ROD ASM; CONN Catalog qty: [4] |
— | Request a Quote |
| 085. | 1122510320 | 1-12251032-0 112251-0320 1-12251-032-0 |
BUSHING; CONNROD Catalog qty: [4] |
— | Request a Quote |
| 086. | 1122350271 | 1-12235027-1 112235-0271 1-12235-027-1 |
BOLT; CONNROD Catalog qty: [8] |
M20X49.5 | Request a Quote |
| 126. | 8941075751 | 8-94107575-1 894107-5751 8-94107-575-1 |
RING; SNAP,PISTON PIN Catalog qty: [8] |
ALSO INCLUDED IN LINER SET. | 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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Product listings may cover different engines. Confirm the part number, engine serial number and specification before ordering.

