Komatsu WA380-3 Wheel Loader Alternator (Gj2K3489) Parts
Komatsu WA380-3 alternator (gj2k3489) parts for machine serial H20051-H20500. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: 03 Electric System / Alternator (Gj2K3489).
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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 40 part occurrences
Select any parts and adjust quantities. Store products go to your cart; parts without a store match go into a quote request. Each button handles only its matching selections.
| Line | Part number | Description | Qty | Order qty | Purchase options | |
|---|---|---|---|---|---|---|
| 1 | ALTERNATOR | 1 | View product ↗ | |||
| 1A | ROTOR ASSEMBLY | 1 | Request quote | |||
| 2 | BALL BEARING | 1 | Request quote | |||
| 3 | KEY PARALLEL | 1 | Request quote | |||
| 4 | RING | 1 | Request quote | |||
| 5 | SCREW | 3 | Request quote | |||
| 6 | COVER | 1 | Request quote | |||
| 7 | GASKET | 2 | Request quote | |||
| 8 | COVER | 1 | Request quote | |||
| 9 | RETAINER | 1 | Request quote | |||
| 10 | RING | 1 | Request quote | |||
| 11 | COVER | 1 | Request quote | |||
| 12 | STATOR ASSEMBLY | 1 | Request quote | |||
| 13 | HOUSING | 1 | Request quote | |||
| 14 | SCREW | 3 | Request quote | |||
| 15 | PULLEY | 1 | Request quote | |||
| 16 | FAN | 1 | Request quote | |||
| 17 | DISC | 1 | Request quote | |||
| 18 | WASHER | 1 | Request quote | |||
| 19 | NUT | 1 | Request quote | |||
| 20 | FIELD COIL | 1 | Request quote | |||
| 21 | HOUSING ASSEMBLY | 1 | Request quote | |||
| 21A | HOUSING | 1 | Request quote | |||
| 22 | HOLDING FIXTURE | 1 | Request quote | |||
| 23 | BALL BEARING | 1 | Request quote | |||
| 24 | BUSHING | 2 | Request quote | |||
| 25 | PLATE | 1 | Request quote | |||
| 26 | SCREW | 2 | Request quote | |||
| 27 | PLATE | 1 | Request quote | |||
| 28 | SCREW | 1 | Request quote | |||
| 29 | PLATE | 1 | Request quote | |||
| 30 | BRACKET | 1 | Request quote | |||
| 31 | BUSHING | 1 | Request quote | |||
| 32 | CABLE | 1 | Request quote | |||
| 33 | SCREW | 1 | Request quote | |||
| 34 | BRACKET | 1 | Request quote | |||
| 35 | SCREW | 1 | Request quote | |||
| 36 | CONTROLLER | 1 | Request quote | |||
| 37 | SCREW | 1 | Request quote | |||
| 38 | SCREW | 3 | Request quote |
Repeated parts remain separate. Source order is retained; diagram callout mapping has not yet been verified.
Assembly notes
Using Komatsu WA380-3 Wheel Loader Alternator (Gj2K3489) Parts
Use the Komatsu WA380-3 Wheel Loader Alternator (Gj2K3489) Parts listing to identify aftermarket replacement parts within the 03 electric system section. This wheel loader application is listed for machine serial H20051-H20500; the diagram and parts table retain the selected configuration and its source notes.
The parts table contains 40 listed part occurrences, including alternator (reference 600-821-7420), rotor assembly (reference KD1-33100-1270) and ball bearing (reference KD1-0456-63057). Read any option and reference notes beside these entries before choosing a replacement; repeated references may represent separate positions in the source list.
Use the section and assembly descriptions together with the stated machine application. Preserve location, option and revision notes shown beside each part number when selecting a replacement or preparing a quote.
Catalog quantities describe the illustrated assembly. Adjust the order quantity to what you need, select the relevant rows, and use Add selected to cart for verified store matches or Add selected to quote for quote items. The diagram alone does not establish current stock or part interchangeability.