Part number 235-112FZ is a genuine cylinder head (red) used in PowrLiner, PowrTex, and PowrTwin series airless sprayers. This cylinder head seals the upper end of the pump cylinder, housing critical components such as valves, seals, and packings. It is precision-machined to maintain proper alignment and compression within the pump. A cracked, warped, or worn cylinder head can cause fluid leaks, loss of pressure, and contamination of the drive system. This genuine replacement restores proper pump sealing and reliable performance.
| Part Number | 235-112FZ |
|---|---|
| Part Description | Cylinder Head Red |
| Brand |
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| Fits |
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| Condition | New |
The 235-112FZ Cylinder Head (Red) is a genuine OEM component designed for PowrLiner, PowrTex, and PowrTwin series airless sprayers. This cylinder head mounts to the top of the pump cylinder, forming a critical pressure-containing seal. It houses the intake and discharge valves, fluid passages, and sealing elements that control the flow of paint through the pump.
Manufactured from high-strength material with precision-machined surfaces, this cylinder head ensures proper alignment of internal components and maintains compression for efficient pumping. The distinctive red finish identifies it as a genuine replacement part. Over time, cylinder heads can develop cracks from pressure cycling, warpage from overheating, or corrosion from aggressive fluids. A damaged cylinder head can cause external leaks, loss of pressure, air ingestion, and contamination of the drive system.
Replacing a worn or damaged cylinder head with this genuine part restores the integrity of the pump's pressure chamber, ensures proper valve operation, and prevents fluid from escaping into the crankcase or environment.
| Pressure containment | Seals the top of the pump cylinder to maintain high pressure |
|---|---|
| Valve housing | Provides mounting and sealing for intake and discharge valves |
| Fluid channeling | Directs fluid flow between pump chamber and outlet |
| Component alignment | Maintains proper alignment of internal pump components |
| External leakage | Fluid visible around cylinder head or pump top |
|---|---|
| Pressure loss | Inability to build or maintain normal operating pressure |
| Visible cracks / damage | Cracks, warpage, or corrosion on cylinder head |
| Air ingestion | Air bubbles in fluid stream indicating seal failure |
Part 235-112FZ is compatible with the following equipment models. Always verify your machine's parts diagram to confirm correct fitment.
| Brand / Model | Component |
|---|---|
| PowrLiner 4955 | Cylinder Head Red |
| PowrLiner 6955 | Cylinder Head Red |
| PowrLiner 8955 | Cylinder Head Red |
| PowrLiner 4950 | Cylinder Head Red |
| PowrLiner 6950 | Cylinder Head Red |
| PowrLiner 8950 | Cylinder Head Red |
| PowrTex 6900SF / 12000SV | Cylinder Head Red |
| PowrTwin 6900 Plus DI | Cylinder Head Red |
| PowrTwin 12000 Plus DI | Cylinder Head Red |
| PowrTwin 6900XLT DI | Cylinder Head Red |
| PowrTwin 4900 | Cylinder Head Red |
| PowrTwin 6900 | Cylinder Head Red |
| PowrTwin 8900 | Cylinder Head Red |
| PowrTwin 12000 | Cylinder Head Red |
When replacing the cylinder head, it's good practice to inspect these related components, as they are often removed or worn during cylinder head service.
The sealing gasket between cylinder head and pump body should always be replaced to ensure a leak‑tight seal.
Intake and discharge valves are housed in the cylinder head. Consider rebuilding or replacing valves at the same time (refer to valve repair kit 2419852).
Bolts and fasteners securing the cylinder head may be stretched or corroded. Replace with new genuine hardware if necessary.
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