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Pressure Washer Pump,3 GPM, 1/2F x 3/8F close
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Pressure Washer Pump, 3 GPM, 1/2F x 3/8F

Price $569.00 / each

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  • Item # 4WXW5
  • Mfr. Model # 4WXW5
  • UNSPSC # 40151527
  • Catalog Page # 3781
  • Shipping Weight 13.8 lbs.
Country of Origin China Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • Item Pressure Plunger Pump
  • Type Direct-Mount
  • Flow Capacity (GPM) 3
  • RPM 3450
  • HP Required @ 500 PSI 1.0
  • HP Required @ 1000 PSI 2.1
  • HP Required @ 1500 PSI 3.1
  • HP Required @ 2000 PSI 4.1
  • HP Required @ 2500 PSI 5.1
  • Shaft Dia. 5/8"
  • Inlet Port (In.) 1/2 F
  • Discharge Port (In.) 3/8 F
  • Length (In.) 7.7
  • Width (In.) 7.2
  • Height (In.) 5.5
  • Seal Cotton Duct, Buna N Chevron and Lip Seal Packing
  • Bearings Needle/Ball
  • Max. Fluid Temp. (F) 140
  • Max. Inlet Pressure (PSI) 50
  • Driver Type Electric Motor
  • Connecting Rod Aluminum
  • Crankcase Precision Die Cast
  • Discharge Pressure (PSI) 2500
  • Manifold Material Forged Brass
  • Plunger Ceramic
  • Lubrication Splash
  • Crankshaft Hardened Steel
  • Pump Head Forged Brass
  • Application High Pressure Water Applications, Including Car Wash, Pressure Wash, Sewer Jetting and Cooling Misting
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Compliance and Restrictions

  • This product contains a chemical that is regulated under California Proposition 65.

    Warning: This product contains a chemical known to the State of California to cause cancer.

    Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.


Dayton Plunger Pump is designed for a wide variety of high pressure washing applications. Constructed with die-cast bodies, its internal components include special thick solid plungers for long life and durability. Precision cast cooling fins are anodized for maximum heat dissipation. The positive alignment and centering in relation to the crankcase assures that the oversized needle bearings on the drive side, and ball on the non-drive side together with the precision supports. Valve cages of special designed Ultra-Form provide positive seating and extended life. Ball bearings on both sides of solid shaft drive pumps. One-piece connecting rods are special alloy aluminum, oversized for strength and load disbursement.

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