Part number 2389126 is a Gas Motor GSH-33 Flange Assembly that mounts the gasoline engine to the frame of compatible PowrLiner line striping systems. This precision-fabricated steel component provides the structural interface between the engine and hydraulic pump, ensuring proper alignment and vibration isolation for reliable power transmission.
| Part Number | 2389126 |
|---|---|
| Part Description | Gas motor GSH-33 Flange assembly |
| Fits | PowrLiner 5500; PowrLiner 4500 service |
| Condition | New |
Part number 2389126 is a Gas Motor GSH-33 Flange Assembly, a precision-engineered mounting component designed for the PowrLiner 5500 and PowrLiner 4500 service line striping systems. These professional-grade stripers are powered by Honda GX160 gasoline engines, delivering reliable performance for medium to large-scale parking lot, roadway, and athletic field marking applications. The flange assembly serves as the critical structural interface between the engine and the hydraulic pump system, ensuring precise shaft alignment and maintaining proper belt or coupling engagement for efficient power transmission.
Fabricated from heavy-gauge steel with precision-machined mounting surfaces, this flange assembly maintains the exact dimensional relationship between the engine crankshaft and the hydraulic pump input shaft. Proper alignment is essential for minimizing vibration, preventing premature bearing wear, and ensuring the sealed hydraulic system operates at optimal efficiency. The GSH-33 designation indicates specific bolt patterns, pilot diameters, and offset dimensions engineered for this engine series. The assembly includes all necessary mounting bosses, reinforcement gussets, and corrosion-resistant coating to withstand the continuous vibration, thermal cycling, and environmental exposure typical of professional line striping operations.
This flange assembly is subjected to extreme operational stresses including high torque loads during startup, continuous vibration throughout the operating cycle, and impact forces during transport over rough terrain. Failure modes include stress cracking at weld joints, distortion from impact or over-tightening, corrosion weakening of the steel structure, and elongation of mounting holes from repeated service. A damaged or misaligned flange assembly causes improper engine-to-pump alignment, resulting in accelerated belt wear, coupling failure, excessive noise and vibration, reduced hydraulic system efficiency, and potential catastrophic damage to both engine and pump components. Replacement with genuine factory-specification flange assembly restores proper power transmission alignment and ensures reliable striper performance.
| Engine Mounting | Provides precision structural interface between Honda GX160 engine and hydraulic pump |
|---|---|
| Shaft Alignment | Maintains critical concentricity for efficient power transmission |
| Vibration Control | Rigid construction minimizes operational vibration and component fatigue |
| Weld Cracking | Visible cracks at welded joints compromise structural integrity |
|---|---|
| Deformation | Flange is bent or twisted, preventing proper engine alignment |
| Mounting Hole Wear | Elongated or deformed mounting holes prevent secure fastening |
| Corrosion | Severe rust has weakened the steel structure or mounting surfaces |
Part number 2389126 is specifically designed for the PowrLiner 5500 and PowrLiner 4500 service line striping systems equipped with Honda GX160 gasoline engines. These professional stripers utilize a sealed hydraulic drive system and require precise engine-to-pump mounting alignment for optimal performance and longevity. This gas motor flange assembly is a model-specific component engineered for the bolt patterns, offset dimensions, and structural requirements of these particular sprayer systems. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Compatible Models | Component |
|---|---|
| PowrLiner 5500 | Gas motor GSH-33 Flange assembly |
| PowrLiner 4500 service |
The gas motor flange assembly is the foundation of the engine drive system. When servicing this component, these related parts are often inspected or replaced at the same time.
Rubber vibration dampeners between engine and flange. Inspect for compression set, cracking, or deterioration.
The flexible coupling connecting engine to pump shaft. Worn couplings cause misalignment and vibration.
Flange bolts, lock washers, and alignment dowels. Replace if corroded, stripped, or damaged.
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