Jabsco 12938-0000 Seal Collar
The Jabsco 12938-0000 is a genuine Jabsco replacement seal collar. The seal collar locks to the pump shaft with set screws and holds the rotating part of the mechanical seal at the correct compression, so the seal faces stay in contact and seal as the shaft turns. Jabsco uses this part number on specific pump models only, so match it against the parts list for the model number on your pump plate before ordering.
A seal collar that has slipped on the shaft, has damaged set screws or is corroded lets the seal lose compression, and the seal will then weep. When fitting a new collar, position it so the seal is compressed as the pump instructions describe, then tighten the set screws evenly onto the shaft.
Key Features
- Genuine Jabsco seal collar
- Holds mechanical seal compression
- Locks to the shaft with set screws
- Direct replacement for a slipped or corroded collar
- Factory part number for specific Jabsco models
- Fit with every mechanical seal change
Applications
- Jabsco pumps with mechanical seals
- Mechanical seal replacement
- Curing a weeping seal
- Sanitary and industrial pump service
- Pump rebuilds
- Replacing corroded parts
Specifications
- Brand: Jabsco
- Manufacturer Part Number: 12938-0000
- Part Type: Seal collar
- Fits: Specific Jabsco pump models, confirm against your pump plate
- Quantity Needed: One per pump
- Condition: New
Frequently Asked Questions
Q: Can I reuse the old set screws?
Only if the threads and points are clean and sharp. Worn set screws let the collar slip.
Q: Where should the collar sit?
Position it so the seal is compressed as the pump instructions describe, then tighten evenly.
Q: Should it be replaced with the seal?
If it is corroded or its set screws are damaged, yes.
Q: Why does my new mechanical seal leak?
Check the seal collar position and set screws. If the collar has moved, the seal faces are not compressed.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct seal collar.
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