Product Description
Armstrong Impeller (Cast iron, ⅞" bore) – Part No. 427101-011
Genuine Armstrong replacement impeller, Armstrong part number 427101-011, for Series 4280, 4030 pumps. Shown as item 80 on the Series 4280 drawing (parts list 6042.127 / 6042.128) – highlighted in the pictures above.
- Part number is for an unbalanced, full diameter impeller. Give the pump serial number and measure the old impeller diameter.
Specification: Cast iron, ⅞" bore
Fits these Armstrong pumps
- Series 4280 (close coupled end suction) – pump sizes 1½ × 1 × 6
- Construction: All iron, Ductile iron (250#)
- Drawing item: 80
- Series 4030 (base mounted end suction) – pump sizes 1½ × 1 × 6
- Construction: All iron (125#), Ductile iron (250#)
- Drawing item: 80
Other parts for this pump
Rebuilding a Series 4280 1½ × 1 × 6? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 39 | Water slinger | 406622-000 |
| 40 | Stuffing box / adapter | 426746-011 |
| 40 | Stuffing box / adapter | 426747-011 |
| 43 | Motor washer | 927113-100 |
| 44 | Motor capscrew | 911121-108 |
| 44 | Motor capscrew | 911125-108 |
| 62 | Mechanical seal kit | 975000-982 |
| 62 | Mechanical seal kit | 9975001-813 |
| 62 | Mechanical seal kit | 9975001-613 |
| 62 | Mechanical seal kit | 9975001-817 |
| 62 | Mechanical seal kit | 9975001-818 |
| 70 | Shaft sleeve | 425869-002 |
| 71 | Shaft sleeve spacer | 425868-005 |
| 83 | Impeller washer | 425742-001 |
| 86 | Impeller capscrew | 911900-114 |
| 100 | Casing | 426102-031 |
| 101 | Casing gasket | 426401-002 |
| 103 | Casing capscrew washer | 927117-100 |
| 104 | Casing capscrew | 911125-110 |
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4280, 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 427101-011
Part Type Impeller
Fits Series 4280 1-1/2 x 1 x 6
Fits Series 4030 1-1/2 x 1 x 6
Drawing Item 4030: item 80; 4280: item 80
Specification Cast iron, 7/8" bore
Shipping cost: Inquire
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