Product Description
Armstrong Motor Key (⅝" × 3" 18-8 s/s) – Part No. 428164-720
Genuine Armstrong replacement motor key, Armstrong part number 428164-720, for Series 4300 pumps. Shown as item 154 on the Series 4300 drawing (parts list 6043.132 / 6043.134 / 6043.136 / 6043.137) – highlighted in the pictures above.
Specification: ⅝" × 3" 18-8 s/s
Fits these Armstrong pumps
- Series 4300 (vertical in-line) – pump sizes 4 × 4 × 11½, 5 × 5 × 11½, 6 × 6 × 11½, 8 × 8 × 11½, 12 × 12 × 13
- Designation: 'M'
- Motor frames: 324TC, 326TC
- Drawing item: 154, 36
Other parts for this pump
Rebuilding a Series 4300 4 × 4 × 11½? These parts are often replaced at the same time:
Showing 24 of 54 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 428164-720
Part Type Hardware / Fitting
Fits Series 4300 4 x 4 x 11-1/2, 5 x 5 x 11-1/2, 6 x 6 x 11-1/2, 8 x 8 x 11-1/2, 12 x 12 x 13
Drawing Item 4300: item 154, 36
Specification 5/8" x 3" 18-8 s/s
Shipping cost: Inquire
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