Product Description
Armstrong Casing – Part No. 426126-031
Genuine Armstrong replacement casing, Armstrong part number 426126-031, for Series 4280, 4030 pumps. Shown as item 100 on the Series 4280 drawing (parts list 6042.127 / 6042.128) – highlighted in the pictures above.
- Casing only.
Specification: Ductile iron, 250#; all iron, 125#; ductile iron, 250#
Fits these Armstrong pumps
- Series 4280 (close coupled end suction) – pump sizes 3 × 2 × 8
- Construction: All iron, Ductile iron (250#)
- Drawing item: 100
- Series 4030 (base mounted end suction) – pump sizes 3 × 2 × 8
- Construction: Ductile iron (250#)
- Drawing item: 100
Other parts for this pump
Rebuilding a Series 4280 3 × 2 × 8? These parts are often replaced at the same time:
| Item | Part | Armstrong part no. |
|---|---|---|
| 39 | Water slinger | 406622-000 |
| 40 | Stuffing box / adapter | 426749-011 |
| 43 | Motor washer | 927113-100 |
| 44 | Motor capscrew | 911121-108 |
| 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 |
| 80 | Impeller | 427125-011 |
| 83 | Impeller washer | 425742-001 |
| 86 | Impeller capscrew | 911900-114 |
| 101 | Casing gasket | 426401-003 |
| 103 | Casing capscrew washer | 927121-100 |
| 104 | Casing capscrew | 911129-112 |
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 426126-031
Part Type Casing
Fits Series 4280 3 x 2 x 8
Fits Series 4030 3 x 2 x 8
Drawing Item 4030: item 100; 4280: item 100
Specification Ductile iron, 250#; all iron, 125#; ductile iron, 250#
Shipping cost: Inquire
Parts Finder canadianpumpshop.com/armstrong-parts-finder/
