Hydraulic Connector
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| MERCEDES 600 W100 012 014 015 016 HYDRAULIC CONNECTOR 3 WAY | |
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$725.00 End Date: Sunday Jun-3-2012 11:43:16 PDT Buy It Now for only: $725.00 Buy It Now | Add to watch list |
| Hydraulic Breaker Hammer hoses set complete with couplings and connectorsCAT | |
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$294.12 End Date: Thursday May-31-2012 14:15:36 PDT Buy It Now for only: $294.12 Buy It Now | Add to watch list |
| QTY 6 EATON 52 HYDRAULIC CONNECTION HOSES SYNFLEX 3000 PSI W CONNECTORS 1541832 | |
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$299.00 End Date: Tuesday May-29-2012 8:05:08 PDT Buy It Now for only: $299.00 Buy It Now | Add to watch list |
| PARKER NO SKIVE 421 3 NEW 3000 PSI HYDRAULIC HOSE WITH CONNECTORS 4213 | |
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$175.00 End Date: Thursday May-31-2012 10:02:02 PDT Buy It Now for only: $175.00 Buy It Now | Add to watch list |
| U38XRT Burndy Crimper crimping U die pink connector Hydraulic 12 ton new | |
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$149.95 End Date: Saturday Jun-16-2012 9:55:24 PDT Buy It Now for only: $149.95 Buy It Now | Add to watch list |
| Hydraulic Wire Connector Crimper used For parts | |
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$111.00 End Date: Thursday Jun-7-2012 18:18:36 PDT Buy It Now for only: $111.00 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 3 BSPT 3 75mm HOSETAIL | |
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$86.96 End Date: Thursday Jun-7-2012 14:06:54 PDT Buy It Now for only: $86.96 Buy It Now | Add to watch list |
| 4 Ton Porta Power Hydraulic Frame Repair Kit Tools Extension Ram Connector HD | |
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$101.99 End Date: Saturday Jun-16-2012 16:33:57 PDT Buy It Now for only: $101.99 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 25 BSPT 25 63mm HOSETAIL | |
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$79.05 End Date: Thursday Jun-7-2012 14:06:57 PDT Buy It Now for only: $79.05 Buy It Now | Add to watch list |
| 2 New ETP Classic 38 Hydraulic Hub Shaft Connectors | |
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$75.00 End Date: Friday May-25-2012 10:22:42 PDT Buy It Now for only: $75.00 Buy It Now | Add to watch list |
| 1 M60 2 1 2 TON HYDRAULIC CRANE CONNECTOR LINK 7409634 | |
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$65.00 End Date: Monday May-28-2012 11:56:18 PDT Buy It Now for only: $65.00 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 15 BSPT 1 1 4 32mm | |
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$47.42 End Date: Thursday Jun-7-2012 14:06:45 PDT Buy It Now for only: $47.42 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 15 BSPT 2 50mm HOSETAIL | |
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$47.42 End Date: Thursday Jun-7-2012 14:06:49 PDT Buy It Now for only: $47.42 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 2 BSPT 2 50mm HOSETAIL | |
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$47.42 End Date: Thursday Jun-7-2012 14:06:50 PDT Buy It Now for only: $47.42 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 2 BSPT 15 38mm HOSETAIL | |
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$47.42 End Date: Thursday Jun-7-2012 14:06:53 PDT Buy It Now for only: $47.42 Buy It Now | Add to watch list |
| MPM B 12 DG024 03 HYDRAULIC CONNECTOR ELECTRO VALVE SOLENOID VALVE | |
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$69.00 End Date: Wednesday May-30-2012 17:41:54 PDT Buy It Now for only: $69.00 Buy It Now | Add to watch list |
| 11 NEW Parker 10343 10 6 Hydraulic Hose Fitting Male Crimp Connector Fluid | |
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$62.99 End Date: Wednesday Jun-6-2012 14:47:00 PDT Buy It Now for only: $62.99 Buy It Now | Add to watch list |
| Foster Hydraulic Connectors Lot of 8 2FF112 F | |
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$45.00 End Date: Sunday May-20-2012 20:00:09 PDT Bid now | Add to watch list |
| Hydraulic Trim line connector P N 47347 Quicksilver | |
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$50.00 End Date: Tuesday Jun-5-2012 13:48:19 PDT Buy It Now for only: $50.00 Buy It Now | Add to watch list |
| BOX OF 5 PARKER HANNIFIN COUPLING HYDRAULIC COUPLER | |
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$54.99 End Date: Saturday Jun-16-2012 13:32:38 PDT Buy It Now for only: $54.99 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 125 BSPT 3 4 19mm HOSETAIL | |
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$31.61 End Date: Thursday Jun-7-2012 14:06:38 PDT Buy It Now for only: $31.61 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 125 BSPT 1 25mm HOSETAIL | |
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$31.61 End Date: Thursday Jun-7-2012 14:06:39 PDT Buy It Now for only: $31.61 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 125 BSPT 15 38mm | |
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$31.61 End Date: Thursday Jun-7-2012 14:06:42 PDT Buy It Now for only: $31.61 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 15 BSPT 15 38mm HOSETAIL | |
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$31.61 End Date: Thursday Jun-7-2012 14:06:46 PDT Buy It Now for only: $31.61 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$50.96 End Date: Sunday May-27-2012 6:37:15 PDT Buy It Now for only: $50.96 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$50.75 End Date: Tuesday May-29-2012 22:53:30 PDT Buy It Now for only: $50.75 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$50.72 End Date: Thursday May-31-2012 9:40:31 PDT Buy It Now for only: $50.72 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$50.71 End Date: Wednesday May-23-2012 14:22:26 PDT Bid now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$49.98 End Date: Saturday Jun-2-2012 21:18:07 PDT Buy It Now for only: $49.98 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$49.14 End Date: Thursday May-31-2012 3:13:30 PDT Buy It Now for only: $49.14 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$46.24 End Date: Monday May-28-2012 13:30:14 PDT Buy It Now for only: $46.24 Buy It Now | Add to watch list |
| 100R1AT 2320 PSI PRESSURE HOSE W 3 4 MALE CONNECTORS 12 HYDRAULIC WASHER AIR | |
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$34.99 End Date: Monday Jun-11-2012 11:20:08 PDT Buy It Now for only: $34.99 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 1 BSPT 15 38mm HOSETAIL | |
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$23.70 End Date: Thursday Jun-7-2012 14:06:35 PDT Buy It Now for only: $23.70 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$42.56 End Date: Monday May-28-2012 12:29:59 PDT Buy It Now for only: $42.56 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Carter Excavator | |
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$42.55 End Date: Sunday May-27-2012 9:37:14 PDT Buy It Now for only: $42.55 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$42.61 End Date: Thursday May-31-2012 2:26:34 PDT Buy It Now for only: $42.61 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$42.57 End Date: Wednesday May-23-2012 8:28:48 PDT Bid now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$42.36 End Date: Sunday May-27-2012 7:56:32 PDT Buy It Now for only: $42.36 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$42.25 End Date: Monday May-28-2012 4:43:00 PDT Buy It Now for only: $42.25 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$42.03 End Date: Wednesday May-23-2012 11:43:41 PDT Bid now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$42.03 End Date: Monday May-28-2012 8:28:51 PDT Buy It Now for only: $42.03 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$42.02 End Date: Saturday Jun-2-2012 23:33:42 PDT Buy It Now for only: $42.02 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$42.00 End Date: Sunday May-27-2012 1:59:19 PDT Buy It Now for only: $42.00 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$40.76 End Date: Monday May-21-2012 5:58:11 PDT Bid now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$40.75 End Date: Friday Jun-1-2012 2:15:47 PDT Buy It Now for only: $40.75 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$40.74 End Date: Tuesday May-29-2012 14:49:33 PDT Buy It Now for only: $40.74 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$40.71 End Date: Wednesday May-23-2012 21:54:11 PDT Bid now | Add to watch list |
| PARKER 12 16 FTX SShydraulicadapterfluid connectorplumbingSTAINLESS STEEL | |
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$39.71 End Date: Sunday Jun-17-2012 4:19:57 PDT Buy It Now for only: $39.71 Buy It Now | Add to watch list |
| 13 PARKER 1 2 HYDRAULIC TUBING TUBE MALE CONNECTORS NOS | |
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$24.99 End Date: Friday May-25-2012 15:35:09 PDT Buy It Now for only: $24.99 Buy It Now | Add to watch list |
| PARKER 12 16 FTX SShydraulicadapterfluid connectorplumbingSTAINLESS STEEL | |
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$12.51 End Date: Sunday Jun-17-2012 4:19:57 PDT Buy It Now for only: $12.51 Buy It Now | Add to watch list |
| PARKER 12 16 FTX SShydraulicadapterfluid connectorplumbingSTAINLESS STEEL | |
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$12.51 End Date: Sunday Jun-17-2012 4:19:57 PDT Buy It Now for only: $12.51 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$35.73 End Date: Monday May-28-2012 12:58:56 PDT Buy It Now for only: $35.73 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$35.53 End Date: Saturday May-26-2012 16:40:05 PDT Buy It Now for only: $35.53 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Sumitomo Excavator | |
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$35.53 End Date: Wednesday May-30-2012 2:30:02 PDT Buy It Now for only: $35.53 Buy It Now | Add to watch list |
| Grease Hose Connector Hydraulic Pump O Ring Seal Kit for Hitachi Excavator | |
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$35.70 End Date: Saturday Jun-2-2012 4:16:19 PDT Buy It Now for only: $35.70 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 125 BSPT 1 1 4 32mm | |
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$15.80 End Date: Thursday Jun-7-2012 14:06:42 PDT Buy It Now for only: $15.80 Buy It Now | Add to watch list |
| HYDRAULIC CONNECTOR TUBE | |
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$32.99 End Date: Monday Jun-4-2012 10:43:16 PDT Buy It Now for only: $32.99 Buy It Now | Add to watch list |
| Mercruiser Trim Hydraulic Hose Part 861128 pump to connector block | |
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$29.99 End Date: Wednesday Jun-13-2012 10:54:24 PDT Buy It Now for only: $29.99 Buy It Now | Add to watch list |
| SIDE LEVER GREASE GUN 400cc Hydraulic 4 jaw CONNECTOR | |
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$15.02 End Date: Monday May-21-2012 5:23:29 PDT Buy It Now for only: $15.02 Buy It Now | Add to watch list |
| 4 Jaw Hydraulic Connectors Heavy Duty Pack of 3 Type Heavy Duty | |
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$17.68 End Date: Thursday Jun-14-2012 13:41:57 PDT Buy It Now for only: $17.68 Buy It Now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 800mm Long | |
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$26.57 End Date: Friday Jun-1-2012 2:30:47 PDT Buy It Now for only: $26.57 Buy It Now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 830mm Long | |
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$26.57 End Date: Friday Jun-1-2012 2:30:56 PDT Buy It Now for only: $26.57 Buy It Now | Add to watch list |
| 4 Jaw Hydraulic Connectors General Purpose Pack of 10 Type General Purpose | |
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$16.98 End Date: Thursday Jun-14-2012 13:42:01 PDT Buy It Now for only: $16.98 Buy It Now | Add to watch list |
| 18 2107 Connector to Hydraulic Pump Sierra Part | |
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$30.00 End Date: Sunday Jun-3-2012 13:42:19 PDT Buy It Now for only: $30.00 Buy It Now | Add to watch list |
| MASSEY FERGUSON MF 50 35 SHORT HYDRAULIC PUMP CONNECTOR | |
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$24.00 End Date: Tuesday Jun-5-2012 20:13:10 PDT Buy It Now for only: $24.00 Buy It Now | Add to watch list |
| Deutz 4327905 Hydraulic Female Push Pull Connector Coupler Argus SPK | |
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$24.99 End Date: Thursday May-24-2012 14:42:55 PDT Buy It Now for only: $24.99 Buy It Now | Add to watch list |
| UMETA 4 Jaw Hydraulic Connectors Standard Type Pack of 5 Description Standar | |
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$13.63 End Date: Thursday Jun-14-2012 13:42:04 PDT Buy It Now for only: $13.63 Buy It Now | Add to watch list |
| 11 Eaton Hydraulic Connector 3 4 16 O Ring Boss x 7 8 14 Male O ring boss | |
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$19.99 End Date: Wednesday Jun-6-2012 20:34:40 PDT Buy It Now for only: $19.99 Buy It Now | Add to watch list |
| Dixon 8KF8 Hydraulic Hose Couplers Couplings Connectors K Series ISO Interchange | |
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$19.95 End Date: Monday May-21-2012 20:26:43 PDT Buy It Now for only: $19.95 Buy It Now | Add to watch list |
| Farmall FRONT HYDRAULIC ROCKSHAFT CONNECTORS 140 130 Super A 100 | |
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$18.99 End Date: Saturday May-19-2012 19:34:52 PDT Buy It Now for only: $18.99 Buy It Now | Add to watch list |
| Hydraulic Compression Equal Tee Connector 15mm L | |
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$14.15 End Date: Thursday Jun-7-2012 1:21:01 PDT Buy It Now for only: $14.15 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 3 4 BSPT 1 1 4 32mm | |
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$15.80 End Date: Thursday Jun-7-2012 14:06:23 PDT Buy It Now for only: $15.80 Buy It Now | Add to watch list |
| LOT OF 17 LARGE HYDRAULIC ANGLE FITTINGS CONNECTORS | |
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$9.99 End Date: Tuesday May-22-2012 18:00:57 PDT Bid now | Add to watch list |
| LOT OF 40 LARGE HYDRAULIC FITTINGS CONNECTORS | |
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$9.99 (1 Bid) End Date: Tuesday May-22-2012 18:00:57 PDT Bid now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 330mm Long | |
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$18.98 End Date: Friday Jun-1-2012 2:30:21 PDT Buy It Now for only: $18.98 Buy It Now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 300mm Long | |
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$18.98 End Date: Friday Jun-1-2012 2:30:13 PDT Buy It Now for only: $18.98 Buy It Now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 420mm Long | |
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$18.98 End Date: Friday Jun-1-2012 2:30:30 PDT Buy It Now for only: $18.98 Buy It Now | Add to watch list |
| Minimess DIN 2 Hose Assembly 1215 Connectors 620mm Long | |
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$18.98 End Date: Friday Jun-1-2012 2:30:39 PDT Buy It Now for only: $18.98 Buy It Now | Add to watch list |
| 11 Eaton Hydraulic Long Connector 8 JIC x 3 4 O Ring | |
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$17.99 End Date: Thursday May-24-2012 20:17:50 PDT Buy It Now for only: $17.99 Buy It Now | Add to watch list |
| MINI CHANGE BRAD HARRISON CONNECTORS | |
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$7.50 End Date: Tuesday May-29-2012 7:53:30 PDT Buy It Now for only: $7.50 Buy It Now | Add to watch list |
| HOSE CONNECTORS MANUAL HYDRAULIC PUMPS CYLINDER ACCESS | |
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$22.24 End Date: Sunday Jun-3-2012 12:37:28 PDT Buy It Now for only: $22.24 Buy It Now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$22.20 End Date: Thursday May-31-2012 14:14:10 PDT Buy It Now for only: $22.20 Buy It Now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$22.17 End Date: Monday May-28-2012 21:10:45 PDT Buy It Now for only: $22.17 Buy It Now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$22.15 End Date: Wednesday May-23-2012 22:12:12 PDT Bid now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$22.07 End Date: Saturday Jun-2-2012 6:32:06 PDT Buy It Now for only: $22.07 Buy It Now | Add to watch list |
| Hydraulic Compression Equal Tube Connector 22mm | |
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$11.46 End Date: Friday Jun-15-2012 8:15:20 PDT Buy It Now for only: $11.46 Buy It Now | Add to watch list |
| 10 Eaton Hydraulic Split Connector 6 M JIC x 8 F JIC | |
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$15.99 End Date: Sunday Jun-17-2012 8:28:16 PDT Buy It Now for only: $15.99 Buy It Now | Add to watch list |
| 10 Eaton Hydraulic Connector 4 JIC x 4 JIC W nut | |
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$15.99 End Date: Sunday Jun-17-2012 8:32:02 PDT Buy It Now for only: $15.99 Buy It Now | Add to watch list |
| 10 Eaton Hydraulic Connector 9 16 18 x 1 1 16 12 O ring | |
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$15.99 End Date: Sunday Jun-17-2012 20:11:46 PDT Buy It Now for only: $15.99 Buy It Now | Add to watch list |
| 15 Eaton Brand Hydraulic Long Connector 4 JIC x 7 16 20 O Ring boss Threads | |
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$14.99 End Date: Saturday Jun-9-2012 1:15:43 PDT Buy It Now for only: $14.99 Buy It Now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$19.38 End Date: Saturday May-26-2012 9:55:19 PDT Buy It Now for only: $19.38 Buy It Now | Add to watch list |
| 1M 33Ft 35MPa 21mm Thread Flexible Hydraulic Hose Tube Connector | |
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$19.39 End Date: Friday May-25-2012 0:50:30 PDT Buy It Now for only: $19.39 Buy It Now | Add to watch list |
| Hydraulic Compression Reducing Tube Connector 15mm L 10mm L | |
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$10.91 End Date: Wednesday Jun-6-2012 11:40:17 PDT Buy It Now for only: $10.91 Buy It Now | Add to watch list |
| 16 Eaton Hydraulic Male Connectors Part C5205X6X6 | |
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$15.00 End Date: Tuesday May-22-2012 19:52:50 PDT Buy It Now for only: $15.00 Buy It Now | Add to watch list |
| HYDRAULIC LINE CONNECTOR 3 4 IN TO 1 2 IN NAS552 8D | |
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$19.95 End Date: Sunday Jun-3-2012 14:36:53 PDT Buy It Now for only: $19.95 Buy It Now | Add to watch list |
| 10 Hydraulic W Brand Connector G 1 2 Metric x 8 Jic | |
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$14.99 End Date: Monday Jun-4-2012 13:05:11 PDT Buy It Now for only: $14.99 Buy It Now | Add to watch list |
| 10 Eaton Hydraulic Connector 10 JIC x 3 4 16 Boss | |
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$14.99 End Date: Wednesday Jun-6-2012 18:37:04 PDT Buy It Now for only: $14.99 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 1 BSPT 5 8 16mm HOSETAIL | |
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$11.05 End Date: Thursday Jun-7-2012 14:06:26 PDT Buy It Now for only: $11.05 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 1 BSPT 1 2 12mm HOSETAIL | |
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$11.05 End Date: Thursday Jun-7-2012 14:06:27 PDT Buy It Now for only: $11.05 Buy It Now | Add to watch list |
| BRASS HOSE TAIL CONNECTOR 1 BSPT 1 25mm HOSETAIL | |
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$11.05 End Date: Thursday Jun-7-2012 14:06:30 PDT Buy It Now for only: $11.05 Buy It Now | Add to watch list |
Hydraulic Pumps
Hydraulic pumps are very simple and they have many applications. Their basic design is a piston in a cylinder that puts force on an incompressible liquid (usually oil), and the force is transmitted to another piston which will do something useful for you. The force is usually multiplied in the process, and so the second piston can achieve much more than the first. To add force multiplication, the relative size of the pistons is increased.
The oil must be free from bubbles because if a piston is used when they are present, much of the force is wasted compressing those bubbles rather than driving the second piston which is hardly an efficient way to go about things. Most pumps fail because of oil contamination of one sort or another. The oil reservoirs should be made with stainless steel or aluminium to prevent corrosion and reduce the chance of any oil contamination.
The pipe containing the oil can be varied lengths and shapes in a hydraulic pump which is very useful because they can be used in almost any system design. The pipes can also be forked so that the master piston drives multiple slaves.
You may not even know it but you probably own some sort of hydraulic pump. Vehicles use them in their braking system. When you depress the brake pedal it applies pressure to two master cylinder pistons which each drive two slave pistons (there’s one at each wheel). These in turn press the brake pads against the brake rotor to stop the car. The thought behind two cylinders each driving a pair of cylinders as opposed to one cylinder driving four is in case there is a problem with a master cylinder - in this case if you only have the one, you cannot stop the car because all of your brake pads will then be ineffectual.
Some hydraulic pumps are manual and some are powered by compressed air, electricity or petrol. Manual hydraulic pumps are great because they are easy to carry because they don’t need an additional power supply. They are perfect for occasional tasks but they do lack the power and speed of powered pumps. They are also labour intensive.
Electric and pneumatic pumps are both good when the required power source is nearby. They will get more done in a shorter time than a manual hydraulic pump but the downside is their cost and the fact that they must be powered by air or electricity and so the supply must be near to hand.
Petrol pumps are perfect for situations where a manual pump is not powerful enough and where the constraints of a pneumatic or electric pump don’t allow for usage in remote places.
Hydraulic pumps have all sorts of uses but if you find that you need to buy one yourself, make sure that you do your research and get the right one.