In-stock parts
Order by 2PM MST
In-stock parts
Order by 2PM MST
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2045 West Buckeye Road
Phoenix AZ 85009
United States
The UnitedBuilt H00553MS bearing frame is the cast iron, rope-seal frame for the M3ZRM pumps below. It is a replacement frame component rather than a complete powerhead or pump.
The rope-packing arrangement uses H00553MS; the M3ZRMS mechanical-seal arrangement uses a different frame, H04007MS. Both may be discussed as M3Z pump frames, so the family name alone is not sufficient for selection. Confirm the installed sealing arrangement before ordering the frame or planning the associated shaft and packing repair.
| Specification | Details |
|---|---|
| Manufacturer | UnitedBuilt |
| Part number | H00553MS |
| Component | Bearing frame / pump bracket |
| Material | Cast iron |
| Seal construction | Rope packing |
| Service position | Item 19 |
| Application | Selection |
|---|---|
| B66899MS | M3ZRM, clockwise, rope seal. |
| B66895MS | M3ZRM, counterclockwise, rope seal. |
| Different frame | H04007MS is the separate mechanical-seal frame for M3ZRMS construction. |
| Check | What to confirm |
|---|---|
| Seal arrangement | Verify rope packing rather than a mechanical seal. |
| Pump configuration | Match B66899MS or B66895MS and compare the existing frame part number. |
| Repair scope | Confirm the shaft kit, bearing caps, packing and gland parts needed separately; do not assume an assembled powerhead is included. |
Need help confirming the correct bearing frame? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your pump model, seal arrangement or photos of the existing frame.
| Model Number | M3ZRM |
|---|---|
| Material | Cast Iron |
| Seal Type | Rope Packing |
| Country of Origin | USA (subject to change) |
| Weight | 33.79 lb |