Finish Thompson M100004-5 27 Inch Pump Shaft
The M100004-5 is the 27 inch pump shaft used in Finish Thompson PFM and PFS drum pumps in the 27 inch tube length. It runs the full length of the tube and carries drive from the motor coupling down to the impeller. It is built in 316 stainless steel, which is what decides where it can safely be used.
Treat it as a service item rather than a permanent fitting. A bent shaft is the usual reason for replacement, and it normally follows a drop, a seizure or a bearing that was left worn for too long. When ordering, match the part to the pump as it was actually built rather than to the catalog model alone, since material and size options were specified at the time of purchase.
Key Features
- 27 Inch Pump Shaft in 316 stainless steel built to the original factory specification
- 316 stainless steel shaft for the 27 inch tube length
- Machined to the original length and diameter for a direct fit
- Sized and finished to drop straight into the position it came from
- Inexpensive component whose failure takes the whole pump out of service
Applications
- Finish Thompson PFM and PFS drum pumps in the 27 inch tube length
- Rebuild of a drum pump that vibrates or runs eccentrically
- Repair after a seized bearing or a dropped pump
- Scheduled overhaul and annual inspection of the pump
- Repair of a pump taken out of service after a leak or a loss of performance
Specifications
- Brand: Finish Thompson
- Manufacturer Part Number: M100004-5
- Part Type: 27 Inch Pump Shaft
- Material: 316 stainless steel
- Position: Center of the pump tube
- Fits: Finish Thompson PFM and PFS drum pumps in the 27 inch tube length
- Tube Length: 27 inch
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: Can the pump be run briefly without this part?
No. Every component in the wet end carries a load or seals a joint, and running incomplete risks far costlier damage.
Q: Is this the genuine manufacturer part?
Yes. It is the factory component built to the original specification rather than a pattern copy.
Q: Should anything else be replaced at the same time?
Whatever the teardown exposes. Elastomers and bushings are inexpensive and are best renewed while the pump is already apart.
Q: What causes most premature failures on this part?
Running the pump outside what it was specified for, whether that is temperature, viscosity, dry running or an incompatible chemical.
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 pump shaft before you order.
CLRMarine
