Part 155-907 is a replacement pump block for compatible Admiral and Commander spray equipment. This precision-machined component forms the core of the pump assembly, housing pistons, valves, and fluid passages. When the original block becomes worn, cracked, or corroded, replacement restores proper pump function and fluid flow.
| Part Number | 155-907 |
|---|---|
| Part Description | Pump Block |
| Brand | Universal |
| Fits | Admiral; Commander |
| Condition | New |
The 155-907 pump block is a direct replacement structural component for Admiral and Commander spray equipment. This precision-machined block forms the core of the pump assembly, providing the main housing for critical internal components. It contains the precision-bored cylinder where the piston reciprocates, as well as the inlet and outlet valve cavities and the internal fluid passages that connect them. The pump block must maintain precise tolerances and smooth surfaces to ensure efficient pumping, proper sealing, and long service life. It also provides mounting points for the pump to the drive system and for external fluid connections. A worn, cracked, or corroded pump block can cause loss of pressure, internal leakage, erratic operation, and fluid contamination. This replacement block is manufactured to exact specifications for bore size, port locations, and mounting dimensions. The material is selected for durability and compatibility with various coatings. Installation requires transferring all internal components to the new block and careful attention to sealing surfaces. Regular inspection during pump overhaul helps identify block damage before it leads to failure.
| Component housing | Contains piston, valves, and fluid passages |
|---|---|
| Pressure containment | Withstands system operating pressure |
| Fluid channeling | Directs material flow through pump |
| Cracked block | Visible cracks cause leaks or pressure loss |
|---|---|
| Worn bore | Cylinder bore worn or scored, causing bypass |
| Corrosion damage | Pitting or rust compromises integrity |
| Thread damage | Port threads stripped or damaged |
Pump block 155-907 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| Admiral |
| Commander |
When replacing the pump block, inspect these associated components to ensure proper pump function.
Check for wear or damage.
Install new packings with block.
Inspect for wear or damage.
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