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Unloader Valve | Pressure Washer Pump Bypass | Pressure Regulator

Trigger guns and pressure-activated unloader valves work together to direct water into bypass and back to the pump or float tank. When the trigger gun is pulled, the unloader valve works with the pump and nozzle to produce high pressure, sending it through the high pressure hose. When the trigger gun is released, the unloader valve shifts into bypass, causing the water to flow back to the inlet side of the pump or float tank, under virtually no pressure. This bypass action protects both the pressure washer pump as well as the power washer user from injury.

Pressure washer unloader valves have either an internal or external bypass design, with a variety of banjo bolt configurations. Landa pressure washers often use a flow-regulated unloader valve, and we have offered numerous options in our General Pump Unloaders category. We also offer unloader valves for Legacy and Karcher commercial-grade pumps. If you are uncertain which unloader valve to choose for a perfect match to your pressure washer pump, please feel free to CONTACT US. Our knowledgeable staff of customer service representatives and service technicians are always happy to assist! Our toll free number is 888-269-0172.

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8.715-502.0 Unloader Valve for Hotsy, Landa, Karcher and Legacy commercial grade pumps, Replaces 921462 1000 PSI Unloader 6.6 GPM
Hotsy / Landa / Karcher / Legacy
8.715-502.0

Replaces Part #'s 921462, 5-3313

Our Price: $117.94
8.715-509.0 Universal Pressure Regulating Unloader Bypass Valve for Hotsy, Landa, Karcher and Legacy Pumps, Replaces 921391 2000 PSI Unloader 13 GPM
Hotsy / Landa / Karcher / Legacy
8.715-509.0

Replaces Part #'s 921391, 5-3325

Our Price: $107.07
8.715-504.0 Universal Pressure Washer Unloader Valve for Hotsy, Landa, Karcher and Legacy Pumps, Replaces 971581 2200 PSI Unloader 6.6 GPM
Hotsy / Landa / Karcher / Legacy
8.715-504.0

Replaces Part #'s 971581, 5-3315

Our Price: $123.40
8.707-351.0 Hotsy Unloader Bypass Valve, replaces 921505 2500 PSI Hotsy Unloader 6.6 GPM
8.707-351.0

Replaces Part #'s 921505, 2-30540

Our Price: $79.39
8.715-490.0 Hotsy Unloader Pump Bypass Valve Replaces Part  921465 3000 PSI Hotsy Unloader 6.6 GPM
8.715-490.0

Replaces Part #'s 921465, 5-3300

Our Price: $143.05
8.715-491.0 Hotsy Pump Unloader Bypass Valve Pressure Regulator, Replaces 921460 3000 PSI Hotsy Unloader 6.6 GPM
8.715-491.0

Replaces Part #'s 921460, 5-3303

Our Price: $113.57
8.715-493.0 Hotsy Pump Unloader Pressure Regulator, replaces 921464 3000 PSI Hotsy Unloader 6.6 GPM
8.715-493.0

Replaces Part #'s 921464, 5-3305

Our Price: $121.21
8.715-494.0 Hotsy Pressure Regulating Pump Unloader Valve, Replaces 921461 3000 PSI Hotsy Unloader 6.6 GPM
8.715-494.0

Replaces Part #'s 921461, 921377, 5-3306

Our Price: $122.30
8.755-611.0 Hotsy Pump Bypass Unloader Valve, Replaces 8.715-499.0 3000 PSI Hotsy Unloader 6.6 GPM
8.755-611.0

Replaces Part #'s
8.715-496.0,
8.715-499.0,
921300, 5-3311

Our Price: $112.00
8.715-508.0 Universal Pressure Regulating Unloader Bypass Valve for Hotsy, Landa, Karcher and Legacy Pumps, Replaces 921390 3000 PSI Unloader 13 GPM
Hotsy / Landa / Karcher / Legacy
8.715-508.0

Replaces Part #'s 921390, 5-3324

Our Price: $142.76
8.715-503.0 Pressure Washer Pump Unloader Valve for Hotsy, Landa, Karcher and Legacy Pumps, Replaces 971580 3000 PSI Unloader 6.6 GPM
Hotsy / Landa / Karcher / Legacy
8.715-503.0

Replaces Part #'s 971580, 5-3314

Our Price: $122.30
8.715-505.0 Pressure Washer Pump Universal Unloader Bypass Valve for Hotsy, Landa, Karcher and Legacy Pumps, Replaces 971555 3000 PSI Unloader 8.0 GPM
Hotsy / Landa / Karcher / Legacy
8.715-505.0

Replaces Part #'s
971555, 5-3316,
971582, 5-3307

Our Price: $114.66
9.803-900.0 VBA35 Pressure Regulator Unloader Bypass Valve for Hotsy, Landa, Karcher and Legacy commercial grade pumps, replaces 5-3330 3500 PSI Unloader 6.6 GPM
Hotsy / Landa / Karcher / Legacy
9.803-900.0

Replaces Part #'s 5-3330, 240377

Our Price: $126.63
9.802-363.0 Unloader Valve Landa, Hotsy, Karcher and Legacy Pumps, same as 8.753-011.0 3650 PSI Unloader 8 GPM
Hotsy / Landa / Karcher / Legacy
9.802-363.0

Replaces Part #'s 8.753-0110

Our Price: $134.16
8.715-498.0 Hotsy Pump Bypass Unloader Valve, replaces 921467 4500 PSI Hotsy Unloader 6.6 GPM
8.715-498.0

Replaces Part #'s 921467, 5-3310

Our Price: $148.51
9.802-360.0.0 VB350/4 High Volume Pressure Regulator Unloader Bypass Valve for Karcher and Legacy Pressure Washer Pumps 5600 PSI Unloader 10.5 GPM
Hotsy / Landa / Karcher / Legacy
9.802-360.0

Replaces Part #'s 8.715-461.0, 463680, 5-3014, 753770

Our Price: $169.95
8.715-500.0 Hotsy Pump Pressure Regulating Unloader Valve, Replaces 921378 600 PSI Hotsy Unloader 6.6 GPM
8.715-500.0

Replaces Part #'s 921378, 5-3312

Our Price: $121.21