Komatsu WA500-3H Op. Seat (Deluxe Air Susp. - Inner Parts) Parts
Komatsu WA500-3H op. seat (deluxe air susp. - inner parts) parts for machine serial H20051 - UP. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.
Catalog configuration: Cab / Controls / Op. Seat (Deluxe Air Susp. - Inner Parts).
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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.
Assembly parts
Showing all 24 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 | SEATSN: H20051-UP | 1 | Request quote | |||
| 2 | HEAD RESTSN: H20051-UP | 1 | Request quote | |||
| 3 | BACK RESTSN: H20051-UP | 1 | Request quote | |||
| 4 | BACK REST COVERINGSN: H20051-UP | 1 | Request quote | |||
| 5 | AIR CUSHIONSN: H20051-UP | 1 | Request quote | |||
| 6 | SEAT CUSHIONSN: H20051-UP | 1 | Request quote | |||
| 7 | SEAT COVERINGSN: H20051-UP | 1 | Request quote | |||
| 8 | BOTTOM PARTSN: H20051-UP | 1 | Request quote | |||
| 9 | COVERSN: H20051-UP | 1 | Request quote | |||
| 10 | OPERATING ASSEMBLYSN: H20051-UP | 1 | Request quote | |||
| 11 | NOTCHED PLATESN: H20051-UP | 1 | Request quote | |||
| 12 | SWITCHSN: H20051-UP | 1 | Request quote | |||
| 13 | SWITCHSN: H20051-UP | 1 | Request quote | |||
| 14 | SWITCHSN: H20051-UP | 1 | Request quote | |||
| 15 | BELLOWSSN: H20051-UP | 1 | Request quote | |||
| 16 | RIVETSN: H20051-UP | 1 | Request quote | |||
| 17 | SUB ASSEMBLYSN: H20051-UP | 1 | Request quote | |||
| 18 | SPRINGSN: H20051-UP | 1 | Request quote | |||
| 19 | RELAYSN: H20051-UP | 1 | Request quote | |||
| 20 | COMPRESSORSN: H20051-UP | 1 | Request quote | |||
| 21 | SHOCK ABSORBERSN: H20051-UP | 1 | Request quote | |||
| 22 | SEAT SLIDESN: H20051-UP | 1 | Request quote | |||
| 23 | ARM REST LHSSN: H20051-UP | 1 | Request quote | |||
| 24 | ARM RESTSN: H20051-UP | 1 | Request quote |
Repeated parts remain separate. Source order is retained; diagram callout mapping has not yet been verified.
Assembly notes
Using Komatsu WA500-3H Op. Seat (Deluxe Air Susp. - Inner Parts) Parts
Use the Komatsu WA500-3H Op. Seat (Deluxe Air Susp. - Inner Parts) Parts listing to identify aftermarket replacement parts within the cab / controls section. This wheel loader application is listed for machine serial H20051 - UP; the diagram and parts table retain the selected configuration and its source notes.
The parts table contains 24 listed part occurrences, including seat (reference 421-57-31110), head rest (reference 421-57-31610) and back rest (reference 421-57-31520). Read any option and reference notes beside these entries before choosing a replacement; repeated references may represent separate positions in the source list.
For operator-compartment and control parts, compare the cab arrangement and equipment options identified on the assembly page. Retain any handedness and connection details when selecting a part or requesting assistance.
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.