Product Description
Armstrong Coupler (Motor shaft ⅞") – Part No. 427731-000
Genuine Armstrong replacement coupler, Armstrong part number 427731-000, 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 ⅞"
Fits these Armstrong pumps
- Series 4300 (vertical in-line) – pump sizes 1½ × 1½ × 6, 2 × 2 × 6, 3 × 3 × 6, 4 × 4 × 6, 1½ × 1½ × 8, 2 × 2 × 8, 3 × 3 × 8, 4 × 4 × 8, 5 × 5 × 8, 2 × 2 × 10, 3 × 3 × 10
- Motor frames: 143TC, 145TC
- Designation: 'S'
- Drawing item: 140
Other parts for this pump
Rebuilding a Series 4300 1½ × 1½ × 6? These parts are often replaced at the same time:
Showing 24 of 52 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 427731-000
Part Type Coupler / Coupling Guard
Fits Series 4300 1-1/2 x 1-1/2 x 6, 2 x 2 x 6, 3 x 3 x 6, 4 x 4 x 6, 1-1/2 x 1-1/2 x 8, 2 x 2 x 8, 3 x 3 x 8, 4 x 4 x 8, 5 x 5 x 8, 2 x 2 x 10, 3 x 3 x 10
Drawing Item 4300: item 140
Specification Motor shaft 7/8"
Shipping cost: Inquire
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