Isuzu 4BG1 Timing Gear Case and Flywheel Housing Parts Catalog for Hitachi ZX120
Use this Group 020 parts catalog to identify flywheel housing, front cover, oil seals and mounting hardware for the Isuzu 4BG1 configuration listed in the Hitachi ZX120 catalog. Compare 44 catalog entries, diagram positions and alternative number formats before requesting a quote from WinsDiesel.
Components Listed in This Group
- CASE; TIMING GEAR
- HOUSING; FLYWHEEL
- BOLT; GEAR CASE
- DOWEL; GEAR CASE COVER
- GASKET; GEAR CASE TO COVER
- COVER; GEAR CASE
- COVER; TIMING CHECK HOLE
- BOLT; CHECK HOLE COVER
- BOLT; COVER TO CASE
- BOLT; COVER
View diagrams | Part number list | Selection notes | Request a quote
Selecting Timing Gear Case and Flywheel Housing
Front and rear crankshaft oil seals and the housing or cover gaskets are distinct entries. Identify which end of the engine is being repaired and quote the full part number rather than ordering by the word seal or cover alone.
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 020 — Timing Gear Case and Flywheel Housing Diagrams
Diagram 1 — 4BG1-TCG-302001
Timing Gear Case and Flywheel Housing parts reference — drawing 4BG1-TCG-302001. Click to view the full-size diagram; use the positions and complete part numbers in the table below.
Diagram 2 — 4BG1-TCG-302002
Timing Gear Case and Flywheel Housing parts reference — drawing 4BG1-TCG-302002. Click to view the full-size diagram; use the positions and complete part numbers in the table below.
Diagram 3 — 4BG1-TCG-302003
Timing Gear Case and Flywheel Housing parts reference — drawing 4BG1-TCG-302003. Click to view the full-size diagram; use the positions and complete part numbers in the table below.
Diagram 4 — 4BG1-TCG-302004
Timing Gear Case and Flywheel Housing parts reference — drawing 4BG1-TCG-302004. 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(C). | 8944509752 | 8-94450975-2 894450-9752 8-94450-975-2 |
CASE; TIMING GEAR Catalog qty: [1] |
— | Request a Quote |
| 002(A). | 8970452072 | 8-97045207-2 897045-2072 8-97045-207-2 |
HOUSING; FLYWHEEL Catalog qty: [1] |
— | Request a Quote |
| 036. | 0500408200 | 0-50040820-0 050040-8200 0-50040-820-0 |
BOLT; GEAR CASE Catalog qty: [4] |
C M8X20 W/LK WASHER | Request a Quote |
| 036. | 0500408450 | 0-50040845-0 050040-8450 0-50040-845-0 |
BOLT; GEAR CASE Catalog qty: [2] |
C M8X45 W/LK WASHER | Request a Quote |
| 036. | 0280808220 | 0-28080822-0 028080-8220 0-28080-822-0 |
BOLT; GEAR CASE Catalog qty: [4] |
M8X22 FLANGE | Request a Quote |
| 036. | 0286808400 | 0-28680840-0 028680-8400 0-28680-840-0 |
BOLT; GEAR CASE Catalog qty: [2] |
A M8X40 FLANGE | Request a Quote |
| 036. | 0280808450 | 0-28080845-0 028080-8450 0-28080-845-0 |
BOLT; GEAR CASE Catalog qty: [2] |
A M8X45 FLANGE | Request a Quote |
| 036. | 0280508450 | 0-28050845-0 028050-8450 0-28050-845-0 |
BOLT; GEAR CASE Catalog qty: [2] |
M8X45 FLANGE | Request a Quote |
| 042. | 9112290581 | 9-11229058-1 911229-0581 9-11229-058-1 |
DOWEL; GEAR CASE COVER Catalog qty: [1] |
— | Request a Quote |
| 049(C). | 8943210160 | 8-94321016-0 894321-0160 8-94321-016-0 |
GASKET; GEAR CASE TO COVER Catalog qty: [1] |
A ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 049(C). | 8972333010 | 8-97233301-0 897233-3010 8-97233-301-0 |
GASKET; GEAR CASE TO COVER Catalog qty: [1] |
ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 054(C). | 8971298300 | 8-97129830-0 897129-8300 8-97129-830-0 |
COVER; GEAR CASE Catalog qty: [1] |
— | Request a Quote |
| 056. | 8943706711 | 8-94370671-1 894370-6711 8-94370-671-1 |
GASKET; GEAR CASE TO COVER Catalog qty: [1] |
ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 057. | 5113210090 | 5-11321009-0 511321-0090 5-11321-009-0 |
COVER; TIMING CHECK HOLE Catalog qty: [2] |
— | Request a Quote |
| 058. | 0500406140 | 0-50040614-0 050040-6140 0-50040-614-0 |
BOLT; CHECK HOLE COVER Catalog qty: [4] |
C M6X14 W/LK WASHER | Request a Quote |
| 058. | 0280806120 | 0-28080612-0 028080-6120 0-28080-612-0 |
BOLT; CHECK HOLE COVER Catalog qty: [4] |
A M6X12 FLANGE | Request a Quote |
| 058. | 0280506120 | 0-28050612-0 028050-6120 0-28050-612-0 |
BOLT; CHECK HOLE COVER Catalog qty: [4] |
M6X12 FLANGE | Request a Quote |
| 060. | 0500408250 | 0-50040825-0 050040-8250 0-50040-825-0 |
BOLT; COVER TO CASE Catalog qty: [7] |
M8X25 W/LK WASHER | Request a Quote |
| 060. | 0500408800 | 0-50040880-0 050040-8800 0-50040-880-0 |
BOLT; COVER TO CASE Catalog qty: [1] |
A M8X80 W/LK WASHER | Request a Quote |
| 060. | 0280808220 | 0-28080822-0 028080-8220 0-28080-822-0 |
BOLT; COVER TO CASE Catalog qty: [7] |
M8X22 FLANGE | Request a Quote |
| 060. | 0280808800 | 0-28080880-0 028080-8800 0-28080-880-0 |
BOLT; COVER TO CASE Catalog qty: [1] |
A M8X80 FLANGE | Request a Quote |
| 060. | 0280508800 | 0-28050880-0 028050-8800 0-28050-880-0 |
BOLT; COVER TO CASE Catalog qty: [1] |
M8X80 FLANGE | Request a Quote |
| 062(B). | 1090440711 | 1-09044071-1 109044-0711 1-09044-071-1 |
BOLT; COVER Catalog qty: [2] |
M8X55 FLANGE | Request a Quote |
| 062(B). | 0280810500 | 0-28081050-0 028081-0500 0-28081-050-0 |
BOLT; COVER Catalog qty: [3] |
A M10X50 FLANGE | Request a Quote |
| 062(B). | 0280510500 | 0-28051050-0 028051-0500 0-28051-050-0 |
BOLT; COVER Catalog qty: [3] |
M10X50 FLANGE | Request a Quote |
| 065. | 8970276011 | 8-97027601-1 897027-6011 8-97027-601-1 |
GASKET; COVER,TIMING CHECK HOLE Catalog qty: [2] |
— | Request a Quote |
| 103(C). | 1096254380 | 1-09625438-0 109625-4380 1-09625-438-0 |
SEAL; OIL,CR/SHF,FRT Catalog qty: [1] |
ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 166(B). | 8943706641 | 8-94370664-1 894370-6641 8-94370-664-1 |
GASKET; RET TO C/BL Catalog qty: [1] |
ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 169. | 0911502080 | 0-91150208-0 091150-2080 0-91150-208-0 |
NUT; COVER Catalog qty: [2] |
A M8 | Request a Quote |
| 169. | 0911802080 | 0-91180208-0 091180-2080 0-91180-208-0 |
NUT; COVER Catalog qty: [2] |
M8 | Request a Quote |
| 172(B). | 8941145611 | 8-94114561-1 894114-5611 8-94114-561-1 |
RETAINER; CR/SHF Catalog qty: [1] |
C | Request a Quote |
| 172(B). | 8970795200 | 8-97079520-0 897079-5200 8-97079-520-0 |
RETAINER; CR/SHF Catalog qty: [1] |
— | Request a Quote |
| 175. | 8970728231 | 8-97072823-1 897072-8231 8-97072-823-1 |
SEAL; OIL,CR/SHF,RR Catalog qty: [1] |
ALSO INCLUDED IN GASKET SET(ENGINE) | Request a Quote |
| 185. | 0286808250 | 0-28680825-0 028680-8250 0-28680-825-0 |
BOLT; RET TO C/BL Catalog qty: [7] |
A M8X25 FLANGE | Request a Quote |
| 185. | 0286508250 | 0-28650825-0 028650-8250 0-28650-825-0 |
BOLT; RET TO C/BL Catalog qty: [7] |
M8X25 FLANGE | Request a Quote |
| 211(B). | 0208006120 | 0-20800612-0 020800-6120 0-20800-612-0 |
BOLT; HSG Catalog qty: [3] |
A M6X12 | Request a Quote |
| 211(B). | 0280806100 | 0-28080610-0 028080-6100 0-28080-610-0 |
BOLT; HSG Catalog qty: [3] |
A M6X10 FLANGE | Request a Quote |
| 211(B). | 0280506100 | 0-28050610-0 028050-6100 0-28050-610-0 |
BOLT; HSG Catalog qty: [3] |
M6X10 FLANGE | Request a Quote |
| 224. | 9944112350 | 9-94411235-0 994411-2350 9-94411-235-0 |
STUD; STARTER Catalog qty: [2] |
A M12X35 L=53 | Request a Quote |
| 224. | 0440112350 | 0-44011235-0 044011-2350 0-44011-235-0 |
STUD; STARTER Catalog qty: [2] |
M12X35 L=53 | Request a Quote |
| 248. | 8970428010 | 8-97042801-0 897042-8010 8-97042-801-0 |
COVER; DUST,FLYWHEEL HSG RET Catalog qty: [1] |
— | Request a Quote |
| 251. | 9113491341 | 9-11349134-1 911349-1341 9-11349-134-1 |
COVER; TIMING,CHECK HOLE Catalog qty: [1] |
— | Request a Quote |
| 341. | 9041108550 | 9-04110855-0 904110-8550 9-04110-855-0 |
STUD; COVER GEAR CASE Catalog qty: [2] |
A M8X55 L=67 | Request a Quote |
| 341. | 0410108550 | 0-41010855-0 041010-8550 0-41010-855-0 |
STUD; COVER GEAR CASE Catalog qty: [2] |
M8X55 L=67 | 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.
