Komatsu WA320-3 Wheel Loader Boom Parts
Komatsu WA320-3 boom parts for machine serial WA320H20051-20560. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: 14 Boom, Thrust Frame - Arm / Boom.
Checking current purchase options...
Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 66 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 | BOOM | 1 | Request quote | |||
| 1A | BOOM | 1 | Request quote | |||
| 1B | BOOM | 1 | Request quote | |||
| 2 | BUSHING | 2 | View product ↗ | |||
| 3 | STRIPPER | 4 | View product ↗ | |||
| 4 | BUSHING | 2 | View product ↗ | |||
| 5 | SEAL | 4 | View product ↗ | |||
| 6 | BUSHING | 2 | View product ↗ | |||
| 7 | SEAL | 4 | View product ↗ | |||
| 8 | LUBRICATION NIPPLE | 2 | View product ↗ | |||
| 9 | PIN | 2 | View product ↗ | |||
| 10 | ADAPTOR | 2 | View product ↗ | |||
| 11 | LUBRICATION NIPPLE | 2 | View product ↗ | |||
| 12 | ADJ SLIDE | 2 | Request quote | |||
| 12A | ADJ SLIDE | 2 | Request quote | |||
| 13 | SCREW | 2 | View product ↗ | |||
| 14 | PLAIN WASHER | 2 | View product ↗ | |||
| 15 | PIN | 2 | Request quote | |||
| 16 | DISC | 2 | Request quote | |||
| 16A | DISC | 2 | View product ↗ | |||
| 17 | O-RING | 4 | Request quote | |||
| 18 | SCREW | 2 | View product ↗ | |||
| 19 | PLAIN WASHER | 2 | View product ↗ | |||
| 20 | PIN | 2 | View product ↗ | |||
| 20A | DISC | 2 | Request quote | |||
| 20B | PLAIN WASHER | 2 | View product ↗ | |||
| 20C | SCREW | 2 | Request quote | |||
| 21 | PIN | 2 | View product ↗ | |||
| 22 | LUBRICATION NIPPLE | 4 | View product ↗ | |||
| 23 | DISC | 4 | Request quote | |||
| 24 | SEAL | 4 | View product ↗ | |||
| 25 | DISC | 2 | Request quote | |||
| 25A | DISC | 2 | Request quote | |||
| 26 | SCREW | 2 | View product ↗ | |||
| 27 | PLAIN WASHER | 2 | View product ↗ | |||
| 28 | O-RING | 4 | View product ↗ | |||
| 29 | SCREW | 4 | Request quote | |||
| 30 | DISC | 8 | View product ↗ | |||
| 31 | NUT | 4 | Request quote | |||
| 32 | ROCKER ARM | 1 | Request quote | |||
| 33 | BUSHING | 2 | View product ↗ | |||
| 34 | STRIPPER | 2 | View product ↗ | |||
| 35 | LUBRICATION NIPPLE | 1 | View product ↗ | |||
| 36 | PIN | 1 | View product ↗ | |||
| 37 | SCREW | 1 | View product ↗ | |||
| 38 | PLAIN WASHER | 1 | View product ↗ | |||
| 39 | ROD | 1 | Request quote | |||
| 39A | ROD | 1 | Request quote | |||
| 40 | BUSHING | 2 | View product ↗ | |||
| 41 | SEAL | 4 | View product ↗ | |||
| 42 | LUBRICATION NIPPLE | 2 | View product ↗ | |||
| 43 | PIN | 2 | Request quote | |||
| 44 | DISC | 1 | Request quote | |||
| 44A | DISC | 1 | View product ↗ | |||
| 45 | O-RING | 4 | Request quote | |||
| 46 | SCREW | 2 | View product ↗ | |||
| 47 | PLAIN WASHER | 2 | View product ↗ | |||
| 48 | PIN | 1 | Request quote | |||
| 49 | PIN | 1 | Request quote | |||
| 50 | STRIPPER | 4 | View product ↗ | |||
| 51 | DISC | 1 | Request quote | |||
| 51A | DISC | 1 | View product ↗ | |||
| 52 | SCREW | 2 | View product ↗ | |||
| 53 | PLAIN WASHER | 2 | View product ↗ | |||
| 54 | ADAPTOR | 1 | View product ↗ | |||
| 55 | LUBRICATION NIPPLE | 1 | View product ↗ |
Repeated parts remain separate. Source order is retained; diagram callout mapping has not yet been verified.
Assembly notes
Using Komatsu WA320-3 Wheel Loader Boom Parts
Use the Komatsu WA320-3 Wheel Loader Boom Parts listing to identify aftermarket replacement parts within the 14 boom, thrust frame - arm section. This wheel loader application is listed for machine serial WA320H20051-20560; the diagram and parts table retain the selected configuration and its source notes.
The parts table contains 66 listed part occurrences, including boom (reference 419-70-H1111), boom (reference 419-850-2110) and boom (reference 419-70-21150). 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.