

PowrLiner / PowrTwin part 235-123 is a motor/pump block designed to house and align the motor and pump assembly on compatible sprayer models. This precision-machined component provides the structural foundation that ensures proper alignment between the motor and pump for efficient power transmission. Replacing a cracked, worn, or damaged motor/pump block restores proper drive alignment and ensures reliable pump operation.
| Part Number | 235-123 |
|---|---|
| Part Description | Motor/Pump Block |
| Brand | PowrLiner / PowrTwin |
| Fits | PowrLiner 4955, 6955, 8955, 4900 XLT, 4950, 6950; PowrTwin 4900 XLT, 4900, 6900, 8900, 12000 Plus |
| Condition | New |
The 235-123 Motor/Pump Block is a precision-machined structural component that houses and aligns the motor and pump assembly on compatible PowrLiner and PowrTwin sprayer models. It provides the rigid foundation necessary for proper power transmission from the motor to the pump.
Proper alignment between the motor and pump is critical for efficient operation and long component life. Misalignment can cause excessive wear on couplings, bearings, and seals, leading to premature failure and reduced performance. The motor/pump block maintains precise positioning of both components, ensuring that the drive shaft runs true and that power is transmitted smoothly without binding or vibration. This block also provides mounting points for ancillary components and may include features for lubrication or cooling passages.
Over time, motor/pump blocks can become cracked from stress or impact, worn at mounting surfaces, or corroded from chemical exposure. A damaged block can allow motor and pump misalignment, leading to increased wear, noise, vibration, and eventual component failure. Replacing a worn or damaged motor/pump block restores proper drive alignment, ensures efficient power transmission, and extends the life of both the motor and pump.
| Component mounting | Provides precise mounting points for motor and pump |
|---|---|
| Drive alignment | Maintains proper alignment for efficient power transmission |
| Structural support | Creates rigid foundation that resists vibration and stress |
| Cracks / fractures | Visible cracks compromising structural integrity |
|---|---|
| Worn mounting surfaces | Damage affecting component alignment |
| Excessive vibration | Increased vibration indicating misalignment or block damage |
| Missing block | Block lost, motor and pump unsupported |
Part 235-123 is compatible with the following sprayer models. Always verify fitment using your equipment's parts diagram before ordering.
| Model | Component |
|---|---|
| PowrLiner 4955 | Motor/Pump Block |
| PowrLiner 6955 | Motor/Pump Block |
| PowrLiner 8955 | Motor/Pump Block |
| PowrLiner 4900 XLT | Motor/Pump Block |
| PowrLiner 4950 | Motor/Pump Block |
| PowrLiner 6950 | Motor/Pump Block |
| PowrTwin 4900 XLT | Motor/Pump Block |
| PowrTwin 4900 | Motor/Pump Block |
| PowrTwin 6900 | Motor/Pump Block |
| PowrTwin 8900 | Motor/Pump Block |
| PowrTwin 12000 Plus | Motor/Pump Block |
When replacing the motor/pump block, these associated components are often inspected or replaced at the same time.
Isolate motor vibration; inspect for wear or deterioration.
Connects motor to pump; inspect for wear and replace if necessary.
Bolts and fasteners that secure motor and pump; replace if corroded.