Product Description
Armstrong Coupler (Motor shaft 2⅛") – Part No. 427740-000
Genuine Armstrong replacement coupler, Armstrong part number 427740-000, for Series 4300 pumps. Shown as item 140 on the Series 4300 drawing (parts list 6043.132 / 6043.134 / 6043.136 / 6043.137) – highlighted in the pictures above.
Specification: Motor shaft 2⅛"
Fits these Armstrong pumps
- Series 4300 (vertical in-line) – pump sizes 3 × 3 × 13
- Motor frames: 404TSC, 405TSC
- Drawing item: 140
Other parts for this pump
Rebuilding a Series 4300 3 × 3 × 13? These parts are often replaced at the same time:
Showing 24 of 69 parts – see the full list in the parts finder.
Not sure this is the right part?
Use our Armstrong Pump Parts Finder: choose Series 4300, 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 427740-000
Part Type Coupler / Coupling Guard
Fits Series 4300 3 x 3 x 13
Drawing Item 4300: item 140
Specification Motor shaft 2-1/8"
Shipping cost: Inquire
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