Komatsu WA320-3 Wheel Loader Control Valve, By-Pass Valve Parts
Komatsu WA320-3 control valve, by-pass valve parts for machine serial WA320H20051-20560. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: 13 Hydraulic System / Control Valve, Two Ways / Control Valve / Control Valve, By-Pass Valve.
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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 29 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 | BY-PASS VALVE | 1 | Request quote | |||
| 2 | PLUG | 1 | Request quote | |||
| 3 | O-RING | 2 | Request quote | |||
| 4 | ORIFICE PLATE | 2 | Request quote | |||
| 5 | PISTON | 1 | Request quote | |||
| 6 | SCREW | 1 | Request quote | |||
| 7 | SPRING | 1 | Request quote | |||
| 8 | O-RING | 1 | Request quote | |||
| 9 | BACK-UP RING | 1 | Request quote | |||
| 10 | O-RING | 1 | Request quote | |||
| 11 | VALVE HOUSING | 1 | Request quote | |||
| 12 | POPPET | 1 | Request quote | |||
| 13 | SPRING | 1 | Request quote | |||
| 14 | O-RING | 1 | Request quote | |||
| 15 | PLUG | 1 | Request quote | |||
| 16 | CAP NUT | 1 | Request quote | |||
| 17 | SEAL | 1 | Request quote | |||
| 18 | NUT | 1 | Request quote | |||
| 19 | SCREW | 1 | Request quote | |||
| 20 | CAP | 1 | Request quote | |||
| 21 | O-RING | 1 | Request quote | |||
| 22 | SPRING | 1 | Request quote | |||
| 23 | POPPET | 1 | Request quote | |||
| 24 | VALVE SEAT | 1 | Request quote | |||
| 25 | O-RING | 1 | Request quote | |||
| 26 | ORIFICE PLATE | 1 | Request quote | |||
| 27 | PLUG | 2 | Request quote | |||
| 28 | GASKET | 2 | Request quote | |||
| 29 | VALVE HOUSING | 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 Wheel Loader Control Valve, By-Pass Valve Parts
Use the Komatsu WA320-3 Wheel Loader Control Valve, By-Pass Valve Parts listing to identify aftermarket replacement parts within the 13 hydraulic 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 29 listed part occurrences, including by-pass valve (reference 419-876-HP99), plug (reference 702-21-HP007) and orifice plate (reference 709-90-HP058). Read any option and reference notes beside these entries before choosing a replacement; repeated references may represent separate positions in the source list.
For hydraulic replacement parts, compare the listed circuit, cylinder, valve or hose application wherever identified in the selected assembly. Retain connection and configuration notes when requesting a quote rather than relying on appearance alone.
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.