| Item | Part No. | Part Name | Qty | Serial No. |
| 423-57-11104 | SEAT ASSEMBLY, OPERATOR'S | | |
| 423-57-11303 | SEAT ASSEMBLY | | |
| 1 | 423-57-11320 | CUSHION, BACK | | |
| 2 | 423-57-11490 | BRACKET | | |
| 3 | 423-57-11380 | BOLT | | |
| 4 | 423-57-11310 | CUSHION, SEAT | | |
| N/I | 423-57-11650 | SPRING | | |
| 5 | 423-57-11450 | BRACKET | | |
| 6 | 423-57-11380 | BOLT | | |
| 7 | 423-57-11470 | BRACKET, L.H | | |
| 8 | 423-57-11480 | BRACKET, R.H | | |
| 9 | 423-57-11460 | BOLT | | |
| 10 | 423-57-11420 | BUSHING | | |
| 11 | 423-57-11430 | SCREW | | |
| 12 | 423-57-11440 | WASHER | | |
| 13 | 423-57-11330 | RECLINING ASSEMBLY | | |
| 14 | 423-57-11380 | BOLT | | |
| 15 | 423-57-11371 | COVER | | |
| 16 | 423-57-11160 | SCREW | | |
| 17 | 423-57-11350 | SLIDE, L.H | | |
| 18 | 423-57-11340 | SLIDE. R.H | | |
| 19 | 423-57-11390 | BOLT | | |
| 20 | 423-57-11360 | LEVER | | |
| 21 | 423-54-11410 | SCREW | | |
| 22 | 423-57-11400 | SUSPENSION ASSEMBLY | | |
| 23 | 423-57-11530 | ADJUSTER, TILT | | |
| 24 | 423-57-11520 | ABSORBER | | |
| 25 | 423-57-11510 | SPRING | | |
| 26 | 423-57-11630 | KNOB | | |
| 27 | 423-57-11640 | PIN, SPRING | | |
| 28 | 423-57-11130 | NUT | | |
| 29 | 423-57-11150 | WASHER | | |
| 30 | 01010-51225 | BOLT | | |
| 30 | 01435-01220 | BOLT | | |
| 31 | 01643-31232 | WASHER | | |
| 32 | 421-57-11141 | REST, ARM | | |
| 33 | 01010-50820 | BOLT | | |
| 33 | 01435-00820 | BOLT | | |
| 34 | 01643-30823 | WASHER | | |
| | | | |
| | F1 - MOUNTING HARDWARE USED ON MODELS WA450-2 AND | | |
| | WA500-1L ONLY. | | |
| | | | |
| | F2 - MOUNTING HARDWARE USED ON MODEL WA380-1LC & | | |
| | WA420-1LC ONLY. | | |
| | | | |
| | F3 - WHOLE SEAT ASSEMBLY AND SUSPENSION MUST BE | | |
| | REPLACED, IF CONVERTING TO SEAR'S SEAT PART | | |
| | NUMBER 423-57-A1100. | | |
