Product Description
Armstrong Impeller (Cast iron · 15" full diameter) – Part No. D251850-011
Genuine Armstrong replacement impeller, Armstrong part number D251850-011, for Series 4600 pumps. Shown as item 23 on the Series 4600 drawing (parts list 6046.100) – highlighted in the pictures above.
- Part number is for a full diameter impeller. Give the pump serial number and measure the old impeller.
Specification: Cast iron · 15" full diameter
Fits these Armstrong pumps
- Series 4600 (horizontal split case) – pump sizes 12 × 10 × 15H
- Construction: All iron (cast iron impeller & rings)
- Drawing item: 23
Other parts for this pump
Rebuilding a Series 4600 12 × 10 × 15H? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 1 | Casing – base (lower half) | D251871-211 |
| 2 | Stuffing box bushing | D251918-041 |
| 3 | Lantern ring | D118035-001 |
| 4 | Packing kit | 969000-028 |
| 5 | Gland stud nut | D112188-000 |
| 6 | Gland studbolt | D251908-071 |
| 7 | Bearing retainer | D251888-011 |
| 8 | Shaft | D251896-011 |
| 8 | Shaft | D251896-071 |
| 10 | Ball bearing (inboard) | 971101-928 |
| 12 | Bearing removal nut | D251893-041 |
| 13 | Bearing housing capscrew | 911825-210 |
| 14 | Shaft sleeve (packing) | D251919-041 |
| 15 | Shaft split ring | D251916-041 |
| 16 | Gland plate | D251812-041 |
| 17 | Stuffing box extension | D251811-041 |
| 18 | Stuffing box | D251821-011 |
| 19 | Stuffing box O-ring | 961131-275 |
| 19A | Stuffing box gasket | D251936-003 |
| 21 | Impeller key | D251948-003 |
| 22 | Case wear ring | D251944-011 |
| 24 | Air vent | 939018-101 |
| 24B | Vent bushing | 931123-155 |
| 25 | Needle valve | 939005-103 |
Showing 24 of 55 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4600, your pump size and motor to see every part on the drawing. Or send us your pump’s nameplate details – call (416) 236-2338 or email sales@bramhambros.com. Bramham Bros is an authorized Armstrong dealer.
Product Videos
Custom Field
Brand Armstrong
Armstrong Part Number D251850-011
Part Type Impeller
Fits Series 4600 12 x 10 x 15H
Drawing Item 4600: item 23
Specification Cast iron | 15" full diameter
Shipping cost: Inquire
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