Product Description
Armstrong Impeller – Part No. 426256-011
Genuine Armstrong replacement impeller, Armstrong part number 426256-011, for Series 4380, 4030 pumps. Shown as item 80 on the Series 4380 drawing (parts list 6043.129 / 6043.130) – 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.
- Part number is for a full (maximum) diameter impeller. Give the pump serial number and measure the old impeller diameter.
Specification: Cast iron, 1¼" bore; Cast iron, 1¼" bore, 10" max. dia.
Fits these Armstrong pumps
- Series 4380 (vertical in-line) – pump sizes 1½ × 1½ × 10
- Designation: 'M'
- Motor frames: 213JP, 215JP, 254JM, 256JM, 284JP, 286JP, 324JP, 326JP
- Construction: All iron (AI)
- Drawing item: 80
- Series 4030 (base mounted end suction) – pump sizes 2 × 1½ × 10
- Designation: 'M'
- Motor frames: 254T, 256T, 284TS, 286TS, 324TS, 326TS
- Construction: All iron (125#), Ductile iron (250#)
- Drawing item: 80
Other parts for this pump
Rebuilding a Series 4380 1½ × 1½ × 10? These parts are often replaced at the same time:
Showing 24 of 30 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4380, 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 426256-011
Part Type Impeller
Fits Series 4380 1-1/2 x 1-1/2 x 10
Fits Series 4030 2 x 1-1/2 x 10
Drawing Item 4030: item 80; 4380: item 80
Specification Cast iron, 1-1/4" bore; Cast iron, 1-1/4" bore, 10" max. dia.
Shipping cost: Inquire
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