Part 235-129 is a replacement motor pump block used in hydraulic systems on compatible PowrLiner, PowrTex, and PowrTwin equipment. This precision-machined component serves as the mounting interface and fluid distribution manifold between the hydraulic motor and pump. When the original block becomes worn, damaged, or develops leaks, replacement restores proper hydraulic system function.
| Part Number | 235-129 |
|---|---|
| Part Description | Motor Pump Block |
| Brand | Universal |
| Fits | PowrLiner 4955, 6955, 8955; PowrLiner 4950; PowrLiner 6900 XLT SP; PowrLiner 6950; PowrLiner 6950_1; PowrTex 6900SF, 12000SV 0528919D; PowrTex 6900SF, 12000SV; PowrTwin 4900 , 6900 , 8900, 12000 Plus; PowrTwin 6900 , 12000 Plus DI; PowrTwin 6900 XLT DI; PowrTwin 6900 XLT; PowrTwin 12000 Plus DI service |
| Condition | New |
The 235-129 motor pump block is a direct replacement hydraulic component for PowrLiner 4955/6955/8955, PowrLiner 4950, PowrLiner 6900 XLT SP, PowrLiner 6950, PowrLiner 6950_1, PowrTex 6900SF/12000SV (including 0528919D), and multiple PowrTwin models including 4900/6900/8900/12000 Plus, 6900/12000 Plus DI, 6900 XLT DI, 6900 XLT, and 12000 Plus DI service. This precision-machined block serves as the critical interface between the hydraulic motor and the pump. It provides the mounting surface, aligns the motor and pump shafts, and contains internal passages that distribute hydraulic fluid between the components. Proper alignment and sealing are essential for efficient power transmission and leak-free operation. A worn, cracked, or corroded block can cause fluid leaks, misalignment leading to component wear, and loss of hydraulic power. This replacement block is manufactured to exact specifications for bolt patterns, port locations, and sealing surfaces. Installation requires careful cleaning and proper torquing of mounting bolts. Regular inspection helps identify block damage before it leads to system failure.
| Component interface | Mounts and aligns motor and pump |
|---|---|
| Fluid distribution | Contains passages for hydraulic fluid |
| Sealing surface | Provides sealing between components |
| Fluid leaks | Hydraulic fluid escaping from block |
|---|---|
| Cracked / damaged | Visible cracks compromise integrity |
| Corrosion damage | Rust or pitting affects sealing |
| Misalignment | Motor and pump shafts misaligned |
Motor pump block 235-129 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| PowrLiner 4955, 6955, 8955 |
| PowrLiner 4950; 6900 XLT SP; 6950; 6950_1 |
| PowrTex 6900SF, 12000SV 0528919D; 6900SF, 12000SV |
| PowrTwin 4900, 6900, 8900, 12000 Plus |
| PowrTwin 6900, 12000 Plus DI; 6900 XLT DI; 6900 XLT |
| PowrTwin 12000 Plus DI service |
When replacing the motor pump block, inspect these associated components to ensure proper hydraulic system function.
Check for wear or damage.
Inspect for proper operation.
Replace to ensure leak-free connections.
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