Excavator Engine Parts
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Connecting-rod bolt and companion nut set for Isuzu 6WG1 and 6WA1 engines. Exact-number records identify 1-12235036-3 as the rod bolt and 1-12239005-1 as its separate companion nut; the two numbers are not interchangeable. Confirm the rod assembly, thread and engine serial range before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Isuzu connecting-rod bolt number | 1-12235036-3 |
| Same-number Formatting Variant | Compact bolt-number formatting | 1122350363 |
| Companion Assembly Part - Not Interchangeable | Separate connecting-rod nut | 1-12239005-1 |
| Same-number Formatting Variant | Compact nut-number formatting | 1122390051 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Cataloged engine families: Isuzu 6WG1 / 6WA1, Cataloged excavator families: Hitachi ZX450 / ZX650 / ZX650-3 / ZX850, Fitment limitation: Confirm rod assembly, thread and engine serial range. Confirm the complete part number and machine serial range before ordering.
Documented direct interchanges: 1-12239005-1. Formatting aliases for the same number: 1122350363, 1122390051.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
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