Komatsu WA320-3 Brake System, Pressure Tank (Gk2K0581) Parts
Komatsu WA320-3 brake system, pressure tank (gk2k0581) parts for machine serial WA320H20051-20560. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: 09 Brake System / Brake System / Brake System, Pressure Tank (Gk2K0581).
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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 32 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 | |
|---|---|---|---|---|---|---|
| 1A | RESERVOIR ASSEMBLYSN: H20561-H21097 | 1 | Request quote | |||
| 1B | RESERVOIR ASSEMBLYSN: H21098-UP | 1 | Request quote | |||
| 2A | VALVE BLOCKSN: H20561-H21097 | 1 | Request quote | |||
| 2B | VALVE BLOCKSN: H21098-UP | 1 | Request quote | |||
| 3 | COVER | 1 | Request quote | |||
| 4 | SCREW | 4 | Request quote | |||
| 5 | O-RING | 1 | Request quote | |||
| 6 | FILTER ELEMENT | 1 | Request quote | |||
| 7 | PILOT | 1 | Request quote | |||
| 8A | PRESSURE LIMIT.VALVESN: H20561-H21097 | 1 | Request quote | |||
| 8B | PRESSURE LIMIT.VALVESN: H21098-UP | 1 | Request quote | |||
| 9 | PLUG | 3 | Request quote | |||
| 10 | RESERVOIR | 1 | Request quote | |||
| 11 | O-RING | 1 | Request quote | |||
| 12 | CHECK VALVE | 1 | Request quote | |||
| 13 | SCREW | 1 | Request quote | |||
| 14 | REDUCER | 1 | Request quote | |||
| 15 | PLUG | 2 | Request quote | |||
| 16 | RESERVOIR | 2 | Request quote | |||
| 17 | SEAL | 2 | Request quote | |||
| 18 | ARBOR | 2 | Request quote | |||
| 19 | O-RING | 2 | Request quote | |||
| 20 | SCREW | 1 | Request quote | |||
| 21 | BY-PASS VALVE | 1 | Request quote | |||
| 22 | PRESSURE SWITCH | 1 | Request quote | |||
| 23 | CLIP | 1 | Request quote | |||
| 24 | SCREW | 2 | Request quote | |||
| 25 | NUT | 2 | Request quote | |||
| 26 | SCREW | 4 | Request quote | |||
| 27 | O-RING | 1 | Request quote | |||
| 28 | O-RING | 1 | Request quote | |||
| 29 | PACKING KIT | 1 | Request quote |
Repeated parts remain separate. Source order is retained; diagram callout mapping has not yet been verified.
Assembly notes
Using Komatsu WA320-3 Brake System, Pressure Tank (Gk2K0581) Parts
Use the Komatsu WA320-3 Brake System, Pressure Tank (Gk2K0581) Parts listing to identify aftermarket replacement parts within the 09 brake system 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 32 listed part occurrences, including reservoir assembly (reference 421-43-H7420), reservoir assembly (reference 421-43-H7421) and valve block (reference 421-43-H0P39). Read any option and reference notes beside these entries before choosing a replacement; repeated references may represent separate positions in the source list.
For axle, driveline and brake-related parts, follow the assembly location and machine serial applicability. Keep front/rear and left/right distinctions, along with any equipment options recorded in the parts list.
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.