5140117-55 DeWalt Pressure Washer Pump 3700 PSI Triplex Pump
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The 5140117-55 is a DeWalt pressure washer pump that serves as a replacement for compatible pressure washers. This AAA pump is rated at 3700 PSI with a flow rate of 2.5 GPM.
This triplex plunger pump features a ball-bearing supported camshaft, which helps to reduce wear on the vital components inside the pump.
Features of the 5140117-55 Kit
- Designed to reduce engine load while delivering top performance.
- Crankcase is made from fully anodized and corrosion-resistant aluminum.
- Precision-made ceramic pistons extend the life of the pump's seals.
- Powerboost technology provides higher water pressure at the spray nozzle.
- Camshaft is stabilized by dual oversized ball bearings.
- Features a fully adjustable unloader system.
- 3/4 in. hollow shaft and flange fit most horizontal shaft engines.
5140117-55 Pump Kit Specifications
Max. Burst Pressure: 3700 PSI
Max. Flow Rate: 2.5 GPM
Inlet Port Size: 3/4 in. GH
Inlet Pressure Range: 10-60 PSI
Thermal Relief Port: 1/4 in. NPT
Shaft Diameter: 3/4 in.
Pump Oil Capacity: 8.0 fl. oz.
Key Way: 3/16"
Head: Brass
Discharge Port: Threaded male Fitting
Flange Bolt Pattern: SAE J-609A
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The "Burst Pressure" of a pressure washer pump is the highest pressure the pump produces when in a static position and when the trigger is first squeezed, giving the initial burst of pressure and does not reflect the actual operating pressure.
The accurate operating PSI of any pump would be determined by the engine’s horsepower and the size of the nozzle being used at the end of the wand, restricting water flow and causing back pressure.
It is possible for a single pump to be rated at various GPM and maximum PSI levels by adjusting factors such as engine RPMs, nozzle size, or engine horsepower.