Advantage / Impact / RentSpray / SprayTech part 0508572 is a crankshaft/gear assembly designed to convert rotary motion into reciprocating motion in the pump drive system of compatible sprayers. This precision assembly includes the crankshaft and attached gear that drives the pump piston. Replacing a worn, damaged, or failed crankshaft/gear assembly restores proper pump operation and ensures reliable performance.
| Part Number | 0508572 |
|---|---|
| Part Description | Crankshaft/Gear Assembly |
| Brand | Advantage / Impact / RentSpray / SprayTech |
| Fits | Advantage 400, 500, 600; Impact 410; RentSpray 400; SprayTech Airless Advantage EPX2155, 22255, 2355; SprayTech Airless 2155, 2255, 2355 |
| Condition | New |
The 0508572 Crankshaft/Gear Assembly is a critical drive component that converts the rotary motion of the motor into the reciprocating motion needed to drive the pump piston on compatible sprayer models. This assembly includes the precision-ground crankshaft and the drive gear that engages with the motor or reduction system.
The crankshaft's offset journal creates the back-and-forth motion that drives the pump piston, while the gear provides the correct speed reduction and torque transmission. These components must maintain precise tolerances to ensure smooth operation and proper pump timing. Over time, crankshafts can wear at bearing surfaces, gears can develop worn teeth, and the assembly can suffer from fatigue failure. A worn or damaged crankshaft/gear assembly can cause excessive vibration, reduced pump output, and eventual pump failure. Replacing with a new assembly restores proper drive function and ensures reliable pump operation.
| Motion conversion | Converts rotary motor motion to reciprocating pump motion |
|---|---|
| Torque transmission | Transfers power from motor to pump at correct speed |
| Timing control | Maintains proper pump stroke timing |
| Excessive vibration | Unusual shaking during operation |
|---|---|
| Worn bearings | Play or roughness in crankshaft rotation |
| Gear tooth damage | Chipped, worn, or broken gear teeth |
| Reduced pump output | Loss of pressure or flow due to drive issues |
Part 0508572 is compatible with the following sprayer models. Always verify fitment using your equipment's parts diagram before ordering.
| Model | Component |
|---|---|
| Advantage 400 | Crankshaft/Gear Assembly |
| Advantage 500 | Crankshaft/Gear Assembly |
| Advantage 600 | Crankshaft/Gear Assembly |
| Impact 410 | Crankshaft/Gear Assembly |
| RentSpray 400 | Crankshaft/Gear Assembly |
| SprayTech Airless Advantage EPX2155 | Crankshaft/Gear Assembly |
| SprayTech Airless Advantage 22255 | Crankshaft/Gear Assembly |
| SprayTech Airless Advantage 2355 | Crankshaft/Gear Assembly |
| SprayTech Airless 2155 | Crankshaft/Gear Assembly |
| SprayTech Airless 2255 | Crankshaft/Gear Assembly |
| SprayTech Airless 2355 | Crankshaft/Gear Assembly |
When replacing the crankshaft/gear assembly, these associated components are often inspected or replaced at the same time.
Support the crankshaft; replace if worn or damaged.
Prevent oil leaks at crankshaft exits; replace during assembly.
Links crankshaft to pump piston; inspect for wear.
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