> Return to Fisher Plow Parts Diagrams
| Chart Reference Number | Part Description | Part Number | Order Part |
| 48552 HT Series™ Hydraulic Unit 48553 HT Series Hydraulic Unit Service Kit* |
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| (1) | Reservoir Kit (quantity: 1) | 48538 | CALL QTE |
| (2) | 10-24 x 5/16 Machine Screw Slotted Hex Washer Head (quantity: 4) | 66607 | CALL QTE |
| (3) | Breather 3/8 NPT Kit (quantity: 1) | 21727-2K | CALL QTE |
| (4) | Plug 3/8 NPTF (quantity: 1) | 92079 | CALL QTE |
| (5) | Magnet (quantity: 1) | 73897 | CALL QTE |
| (6) | O-Ring 2 – 250 (quantity: 1) | 66519 | CALL QTE |
| (7) | 5/16-18 x 2-1/4 Hex Cap Screw G5 (quantity: 5) | 90073 | CALL QTE |
| (8) | Plate Baffle (quantity: 1) | 48464 | CALL QTE |
| (9) | Suction Filter (quantity: 1) | 56789-3 | CALL QTE |
| (10) | Inlet Fitting/Filter Kit (quantity: 1) | 66763-1 | CALL QTE |
| (11) | Hydraulic Pump Kit (quantity: 1) | 21501-1 | ORDER ONLINE |
| (12) | O-Ring – 013 (quantity: 1) | 56274 | CALL QTE |
| (13) | Poppet Check Valve Kit (quantity: 1) | 7630K | CALL QTE |
| (14) | Relief Valve Kit (2 sets) (quantity: 2) | 7629K-3 | CALL QTE |
| (15) | Relief Valve Repair Kit (quantity: 1) | 27792-1 | CALL QTE |
| (16) | Check Valve CV08-20 (quantity: 1) | 44334-1 | CALL QTE |
| (17) | Valve, 2-Way w/Nut (quantity: 1) | 7634K-2 | CALL QTE |
| (18) | Coil w/Spade Terminals (quantity: 3) | 7639K-2 | CALL QTE |
| (19) | Motor Assembly, 3" (quantity: 1) | 48543-1 | ORDER ONLINE |
| (20) | Cartridge Valve, 3-Way w/Nut (quantity: 1) | 66608-1 | CALL QTE |
| (21) | Cartridge Valve, 4-Way w/Nut (quantity: 1) | 7637K-1 | CALL QTE |
| (22) | Bearing, Sleeve (quantity: 1) | 64596-1 | CALL QTE |
| (23) | O-Ring – 014 (quantity: 1) | 56416 | CALL QTE |
| (24) | Pump Shaft Seal (quantity: 1) | 66515 | CALL QTE |
| (25) | Quill (quantity: 1) | 48517 | CALL QTE |
| (26) | Check Valve Assembly (quantity: 1) | 48518 | CALL QTE |
| (27) | Plug, Hex Socket –3 M ORB (quantity: 2) | 92960 | CALL QTE |
| O-Ring Service Kits | |||
| (ns) | O-Ring & Back-Up Ring Kit | 7632K-3 | CALL QTE |
| (ns) | Seal Kit, 2-Way Valve | 49258-2 | CALL QTE |
| (ns) | Seal Kit Cartridge,, 3-Way and 4-Way Valve | 49259-2 | CALL QTE |
| ns = Not Shown. G = Grade. * Includes 48552 Hydraulic Unit and Plow-Side Electrical Components. |
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