Komatsu WA320-3 Wheel Loader Injection System — Injection Pump Parts
Komatsu WA320-3 injection system — injection pump parts for machine serial WA320H20051-20560. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: 01 Engine, Engine Mounting / Injection System / Injection Pump.
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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 74 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 | SEAL | 1 | Request quote | |||
| 3 | PLUG | 6 | Request quote | |||
| 4 | REGULATION ROD | 1 | Request quote | |||
| 5 | RING | 2 | Request quote | |||
| 6 | THREADED BUSH | 1 | Request quote | |||
| 7 | O-RING | 1 | Request quote | |||
| 8 | CAMSHAFT | 1 | Request quote | |||
| 9 | STOP | 1 | Request quote | |||
| 10 | DISC | - | Request quote | |||
| 10A | DISC | 1 | Request quote | |||
| 10B | DISC | - | Request quote | |||
| 10C | DISC | - | Request quote | |||
| 10D | DISC | - | Request quote | |||
| 10E | DISC | - | Request quote | |||
| 10F | DISC | - | Request quote | |||
| 10G | DISC | - | Request quote | |||
| 11 | TAPER.ROLLER BEARING | 1 | Request quote | |||
| 12 | O-RING | 1 | Request quote | |||
| 12A | GASKET DISC | 1 | Request quote | |||
| 13 | COVER | 1 | Request quote | |||
| 14 | SPRING WASHER | 4 | Request quote | |||
| 15 | SCREW | 4 | Request quote | |||
| 16 | SHAFT SEAL | 1 | Request quote | |||
| 17 | O-RING | 1 | Request quote | |||
| 18 | SPRING WASHER | 1 | Request quote | |||
| 19 | NUT | 1 | Request quote | |||
| 20 | BEARING SHELL | 1 | Request quote | |||
| 21 | SEAL | 2 | Request quote | |||
| 22 | SCREW | 2 | Request quote | |||
| 23 | GASKET | 1 | Request quote | |||
| 24 | COVER | 1 | Request quote | |||
| 25 | O-RING | 2 | Request quote | |||
| 26 | SCREW | 2 | Request quote | |||
| 27 | STUD BOLT | 3 | Request quote | |||
| 28 | GASKET | 1 | Request quote | |||
| 29 | COVER | 1 | Request quote | |||
| 30 | SPRING WASHER | 3 | Request quote | |||
| 31 | NUT | 3 | Request quote | |||
| 32 | RING | 1 | Request quote | |||
| 33 | DISC | - | Request quote | |||
| 33A | DISC | - | Request quote | |||
| 33B | DISC | - | Request quote | |||
| 33C | DISC | - | Request quote | |||
| 33D | DISC | - | Request quote | |||
| 33E | DISC | - | Request quote | |||
| 33F | DISC | - | Request quote | |||
| 33G | DISC | - | Request quote | |||
| 34 | TAPER.ROLLER BEARING | 1 | Request quote | |||
| 35 | PLUG | 1 | Request quote | |||
| 36 | THREADED PART | 1 | Request quote | |||
| 37 | ELEMENT | 6 | Request quote | |||
| 38 | PRESSURE VALVE | 6 | Request quote | |||
| 39 | GASKET DISC | 6 | Request quote | |||
| 40 | COMPRESSION SPRING | 6 | Request quote | |||
| 41 | O-RING | 6 | Request quote | |||
| 42 | INSET | 6 | Request quote | |||
| 43 | BRACKET | 1 | Request quote | |||
| 44 | BRACKET | 1 | Request quote | |||
| 45 | SCREW | 1 | Request quote | |||
| 46 | BRACKET | 6 | Request quote | |||
| 47 | SEGMENT | 1 | Request quote | |||
| 47A | SEGMENT | 1 | Request quote | |||
| 48 | SCREW | 1 | Request quote | |||
| 49 | DRIVING | 1 | Request quote | |||
| 50 | SPRING SEAT | 6 | Request quote | |||
| 51 | COMPRESSION SPRING | 6 | Request quote | |||
| 52 | DISC | 6 | Request quote | |||
| 53 | SCREW | 1 | Request quote | |||
| 54 | NUT | 1 | Request quote | |||
| 55 | TAPPET | 6 | Request quote | |||
| 56 | DOWEL | 1 | Request quote | |||
| 57 | ROLLER | 1 | Request quote | |||
| 58 | PLUG | 6 | 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 Injection System — Injection Pump Parts
Use the Komatsu WA320-3 Wheel Loader Injection System — Injection Pump Parts listing to identify aftermarket replacement parts within the 01 engine, engine mounting 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 74 listed part occurrences, including by pass valve (reference 419-04-H0R01), plug (reference 424-72-H1160) and regulation rod (reference 424-72-H1240). 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.