

Titan 2419185 diaphragm assy. gsh-33
Part number 2419185 is a genuine diaphragm assembly used in Elite 5500 and PowrLiner 4500/5500 airless sprayers. This assembly is the flexible pumping element that reciprocates to create suction and discharge strokes, moving fluid through the pump. It consists of a durable elastomeric diaphragm bonded to a rigid center plate with integral mounting hardware. A worn, torn, or stretched diaphragm will cause loss of prime, reduced pressure, erratic output, or fluid leakage. Replacing it with this genuine assembly restores pump performance and reliable operation.
| Part Number | 2419185 |
|---|---|
| Part Description | Diaphragm Assembly |
| Brand | Elite / PowrLiner |
| Fits | Elite 5500; PowrLiner 4500, 5500 |
| Condition | New |
The 2419185 Diaphragm Assembly is a genuine OEM pumping component designed for Titan Elite 5500 and PowrLiner 4500/5500 airless sprayers. In diaphragm pumps, this assembly is the heart of the pumping action. It flexes back and forth, alternately drawing fluid into the pump chamber and expelling it at high pressure. The assembly includes a precision‑molded elastomeric diaphragm bonded to a rigid center plate with mounting holes and hardware for secure attachment to the drive mechanism.
The diaphragm material is specially formulated to resist wear, chemical attack, and flex fatigue from continuous operation. Over time, however, diaphragms can develop pinhole leaks, tears, or permanent stretching, leading to loss of prime, pressure fluctuations, internal bypassing, and fluid leakage into the drive housing. Replacing a worn diaphragm with this genuine assembly restores proper pumping action, consistent pressure, and prevents contamination of the drive system.
| Pumping action | Reciprocates to create suction and discharge strokes |
|---|---|
| Fluid separation | Separates fluid from drive mechanism, preventing contamination |
| Pressure generation | Directly responsible for building and maintaining spray pressure |
| Loss of prime | Pump will not draw fluid or loses prime during operation |
|---|---|
| Pressure fluctuation | Spray pressure surges or drops erratically |
| Fluid leakage | Fluid visible in drive housing or dripping from pump area |
| Visible damage | Tears, cracks, stretching, or hardening of diaphragm material |
Part 2419185 is designed for the following Titan sprayer models. Always verify your machine's parts diagram to confirm correct fitment.
| Brand / Model | Component |
|---|---|
| Elite 5500 | Diaphragm Assembly |
| PowrLiner 4500 | Diaphragm Assembly |
| PowrLiner 5500 | Diaphragm Assembly |
When replacing the diaphragm assembly, it's good practice to inspect these related components, as they often wear out or become damaged at the same time.
Gaskets and seals in the fluid section should be replaced to ensure a complete seal and prevent leaks.
Worn valves can contribute to poor performance. Inspect and replace valve seats, balls, or poppets if necessary.
Check the connecting rod and drive bearings for wear that could cause abnormal diaphragm stress.