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Major Repair Kit, Welch 8821, 8821MRK
Major Repair Kit includes; gaskets, washers & Viton shaft seals. Vanes, springs, sight glass and other components for major overhaul. Used on Pump Models 8821
General product classifications
| Brand | Welch |
| Family | DirecTorr |
| Pump models | 8821 |
| Category | Repair Kits |
| Subcategory | Major Kit |
| Country of origin | US |
| Manual page | WELCH-107 |
| Part number alternatives | 23W-8821 |
| PART NUMBER | DESCRIPTION | QUANTITY |
|---|---|---|
| 412996 | Vane Spring | 4 |
| 413035 | Plug,O-Ring,STRAI.HEAD.STL,5/8 | 1 |
| 412991 | Int. Valve Spring, Conical | 2 |
| 412988 | Shaft Seal, 5/8" | 1 |
| 412977 | Shaft Seal, Buna - 0.625" | 1 |
| 412972 | Vane Spring | 2 |
| 412969 | Spring Holder | 1 |
| 412963 | O-Ring,Viton,2.57 X 1.78 MM | 1 |
| 412962 | Shaft Seal, 3/8" | 1 |
| 412951 | Check Valve Spring | 1 |
| 410643 | Shaft Seal Gasket | 1 |
| 410491 | Washer | 1 |
| 412949 | Plunger Spring | 1 |
| 412945 | Oil Feed Plunger | 1 |
| 412783 | Valve Spring, Conical | 1 |
| 412744 | Intake Cover Gasket | 1 |
| 412642 | O-Ring,Buna,9.19 X 2.62 MM | 1 |
| 413040 | Sight Glass with Chrome Base | 2 |
| 413048 | Valve,Bypass | 3 |
| 413050 | Drain Pad | 1 |
| 413058 | Drive Pin | 1 |
| 413133 | Case Gasket | 1 |
| 413327 | Vane, Exhaust - GX | 2 |
| 413329 | Vane, Intake - GX | 2 |
| 413727 | O-Ring,Buna,40.87 X 3.53 MM | 1 |
| 4213006 | Dowel Pin | 1 |
| 4400800 | Steel Ball | 1 |
| 412065 | O-Ring,Buna,21.82 X 3.53 MM | 1 |
| 411401E-01 | Shaft Seal Kit - 0.625" | 1 |
| 410929 | Pump Base Legs | 4 |
Major Repair Kit includes; gaskets, washers & Viton shaft seals. Vanes, springs, sight glass and other components for major overhaul. Used on Pump Models 8821
General product classifications
| Brand | Welch |
| Family | DirecTorr |
| Pump models | 8821 |
| Category | Repair Kits |
| Subcategory | Major Kit |
| Country of origin | US |
| Manual page | WELCH-107 |
| Part number alternatives | 23W-8821 |
| PART NUMBER | DESCRIPTION | QUANTITY |
|---|---|---|
| 412996 | Vane Spring | 4 |
| 413035 | Plug,O-Ring,STRAI.HEAD.STL,5/8 | 1 |
| 412991 | Int. Valve Spring, Conical | 2 |
| 412988 | Shaft Seal, 5/8" | 1 |
| 412977 | Shaft Seal, Buna - 0.625" | 1 |
| 412972 | Vane Spring | 2 |
| 412969 | Spring Holder | 1 |
| 412963 | O-Ring,Viton,2.57 X 1.78 MM | 1 |
| 412962 | Shaft Seal, 3/8" | 1 |
| 412951 | Check Valve Spring | 1 |
| 410643 | Shaft Seal Gasket | 1 |
| 410491 | Washer | 1 |
| 412949 | Plunger Spring | 1 |
| 412945 | Oil Feed Plunger | 1 |
| 412783 | Valve Spring, Conical | 1 |
| 412744 | Intake Cover Gasket | 1 |
| 412642 | O-Ring,Buna,9.19 X 2.62 MM | 1 |
| 413040 | Sight Glass with Chrome Base | 2 |
| 413048 | Valve,Bypass | 3 |
| 413050 | Drain Pad | 1 |
| 413058 | Drive Pin | 1 |
| 413133 | Case Gasket | 1 |
| 413327 | Vane, Exhaust - GX | 2 |
| 413329 | Vane, Intake - GX | 2 |
| 413727 | O-Ring,Buna,40.87 X 3.53 MM | 1 |
| 4213006 | Dowel Pin | 1 |
| 4400800 | Steel Ball | 1 |
| 412065 | O-Ring,Buna,21.82 X 3.53 MM | 1 |
| 411401E-01 | Shaft Seal Kit - 0.625" | 1 |
| 410929 | Pump Base Legs | 4 |