• Description:
  • Our parts washer pump features a standard SAE bolt pattern for easy installation. It is suitable for various gas pressure washers with horizontal engines.
  • The power washer pump strengthens plunger hardness to reduce the chance of being damaged by impurities. It also improves wear resistance and prolongs the life of water/oil seals.
  • Our replacement power washer pump has a sight glass for easy oil level inspection. By observing the oil level and the oil itself, you can easily check the oil level or see if water has mixed into the oil.

    • 4400 psi Pressure Washer Pump Power Washer Pump 4 GPM 1" Shaft Horizontal

    Description:

    Our parts washer pump features a standard SAE bolt pattern for easy installation. It is suitable for various gas pressure washers with horizontal engines.

    The power washer pump strengthens plunger hardness to reduce the chance of being damaged by impurities. It also improves wear resistance and prolongs the life of water/oil seals.

    Our replacement power washer pump has a sight glass for easy oil level inspection. By observing the oil level and the oil itself, you can easily check the oil level or see if water has mixed into the oil.

    From outdoor walls, sidewalks, cars, to construction sites, our power washer replacement pump can get the job done efficiently and effectively. It's the go-to tool for all your cleaning needs.

     

    Feature:

    Pump out the Competition: Looking for a high-performance pressure washer pump? Look no further than the replacement residential pump! With 4400 PSI max pressure and 4 GPM max flow rate, it's perfect for daily cleaning tasks such as walls, sidewalks, and vehicles. Save money by replacing your pump instead of buying a whole new power washer.

    Wide Compatibility: Designed with a standard SAE bolt pattern, our parts washer pump is compatible with various gas pressure washers with horizontal engines, including Simpson MorFlex models 40224, 40225, 40226, and Santoprene model 41182. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection.

    High-Pressure Resistant Structure: Say goodbye to impurities damaging your plunger! Our power washer pump strengthens plunger hardness to improve wear resistance and prolong the life of water/oil seals. The one-piece pump head made of forged brass material offers a better sealing effect, high strength, and increased durability.

    Easy Oil Level Inspection: Checking the oil level has never been easier with our replacement power washer pump's sight glass and advanced oil seal technology – no need to use an oil dipstick. With visibility to the oil level and the oil itself, you can easily see when oil levels are low or if water has clouded the oil.

    Use It Anywhere: Whether you're cleaning outdoor walls, sidewalks, cars, or construction sites, our power washer replacement pump is the perfect solution to boost water pressure. It is a great helper for both daily and professional cleaning tasks.

    High performance,reliable quality
    We work with every effort to provide quality products and professional service.

     

    Specification:

    Extending the lifespan of waterseals/oil seals

    Ceramic Parts Hardness900hw

    Stainless Stee Parts Hardness50 hre

    Reduce plunger damage caused by impurities

    Reduce wear between plunger and seal

    Improve durability performance

    Integrated Pump Head:Forged brass with high strengthhigh-pressure resistancebetter sealing

    High Pressure Hose Quick Connect:More convenient to installwater pipes

    Crankcase:Greater space with sight glassto check oil leve

     

    About Delivery:
    We have warehouses in California and New Jersey
    We will follow the principle of nearest delivery
    When one warehouse is out of stock, it will be shipped from another warehouse
    Thank you for your understanding

     

    Package Product List:
    1×Pressure Washer Pump

    As The Picture Shows


    Item Specifics
    Horsepower 9-15 HP
    Brand auto-opartsca
    Type Pressure Washer Pump
    Shaft Diameter 1"/25.4 mm
    Maximum Pressure 4400 PSI
    Max Flow 4 GPM
    MPN AOC3939945

    Payment

    Product will be shipped out within 1-3 workdays after payment cleared.

    Shipping

    1.Please make sure your Ebay shipping address is correct before finalizing your order and submitting payment. 

    2.Your order will be shipped out within 3 business day of receiving payment and you should expect to receive it within 1-6 business days (Monday-Friday).

    3.There are always uncertainties in the shipping process, please feel free to contact us if your item does not arrive within our estimated time.

    Returns

    1.If you are not satisfied with the item, we accept a 30-day return/refund guarantee.All items must be unused and in its original packaging. All original hardware must be included in the package. 

    2.If you receive a faulty, damaged or incorrect item, or have any other problems, please contact our eBay customer service within 30 days of receiving the item.

    3.Returns will be denied if any modification have been made to our product. Please be advised that YOU MUST UPLOAD THE TRACKING NUMBER to eBay's return request in order to get your money back.

    Contact Us

    1. Please leave us a 5-star positive feedback, your feedback is an encouragement to us.

    2.Before you leave us negative/neutral feedback, please feel free to contact us, we are happy to solve the problems you encountered.

    Customer Services

    1. Welcome to our Auto-opartsca store!

    2.We provide high quality, best price and excellent after-sales service!

    3.Thank you for visiting our eBay store. Our working hours are Monday to Friday, except weekends and holidays. If you have any questions about our items, please feel free to contact us. If your item malfunctions or has problems within the warranty period, please contact us first via eBay message, we will spare no effort to solve the problem for you until the problem is solved!

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    4400 psi Pressure Washer Pump Power Washer Pump 4 GPM 1" Shaft Horizontal

    Description:

    Our parts washer pump features a standard SAE bolt pattern for easy installation. It is suitable for various gas pressure washers with horizontal engines.

    The power washer pump strengthens plunger hardness to reduce the chance of being damaged by impurities. It also improves wear resistance and prolongs the life of water/oil seals.

    Our replacement power washer pump has a sight glass for easy oil level inspection. By observing the oil level and the oil itself, you can easily check the oil level or see if water has mixed into the oil.

    From outdoor walls, sidewalks, cars, to construction sites, our power washer replacement pump can get the job done efficiently and effectively. It's the go-to tool for all your cleaning needs.

     

    Feature:

    Pump out the Competition: Looking for a high-performance pressure washer pump? Look no further than the replacement residential pump! With 4400 PSI max pressure and 4 GPM max flow rate, it's perfect for daily cleaning tasks such as walls, sidewalks, and vehicles. Save money by replacing your pump instead of buying a whole new power washer.

    Wide Compatibility: Designed with a standard SAE bolt pattern, our parts washer pump is compatible with various gas pressure washers with horizontal engines, including Simpson MorFlex models 40224, 40225, 40226, and Santoprene model 41182. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection.

    High-Pressure Resistant Structure: Say goodbye to impurities damaging your plunger! Our power washer pump strengthens plunger hardness to improve wear resistance and prolong the life of water/oil seals. The one-piece pump head made of forged brass material offers a better sealing effect, high strength, and increased durability.

    Easy Oil Level Inspection: Checking the oil level has never been easier with our replacement power washer pump's sight glass and advanced oil seal technology – no need to use an oil dipstick. With visibility to the oil level and the oil itself, you can easily see when oil levels are low or if water has clouded the oil.

    Use It Anywhere: Whether you're cleaning outdoor walls, sidewalks, cars, or construction sites, our power washer replacement pump is the perfect solution to boost water pressure. It is a great helper for both daily and professional cleaning tasks.

    High performance,reliable quality
    We work with every effort to provide quality products and professional service.

     

    Specification:

    Extending the lifespan of waterseals/oil seals

    Ceramic Parts Hardness900hw

    Stainless Stee Parts Hardness50 hre

    Reduce plunger damage caused by impurities

    Reduce wear between plunger and seal

    Improve durability performance

    Integrated Pump Head:Forged brass with high strengthhigh-pressure resistancebetter sealing

    High Pressure Hose Quick Connect:More convenient to installwater pipes

    Crankcase:Greater space with sight glassto check oil leve

     

    About Delivery:
    We have warehouses in California and New Jersey
    We will follow the principle of nearest delivery
    When one warehouse is out of stock, it will be shipped from another warehouse
    Thank you for your understanding

     

    Package Product List:
    1×Pressure Washer Pump

    As The Picture Shows



    Product will be shipped out within 1-3 workdays after payment cleared.

    1.Please make sure your Ebay shipping address is correct before finalizing your order and submitting payment. 

    2.Your order will be shipped out within 3 business day of receiving payment and you should expect to receive it within 1-6 business days (Monday-Friday).

    3.There are always uncertainties in the shipping process, please feel free to contact us if your item does not arrive within our estimated time.

    1.If you are not satisfied with the item, we accept a 30-day return/refund guarantee.All items must be unused and in its original packaging. All original hardware must be included in the package. 

    2.If you receive a faulty, damaged or incorrect item, or have any other problems, please contact our eBay customer service within 30 days of receiving the item.

    3.Returns will be denied if any modification have been made to our product. Please be advised that YOU MUST UPLOAD THE TRACKING NUMBER to eBay's return request in order to get your money back.

    1. Please leave us a 5-star positive feedback, your feedback is an encouragement to us.

    2.Before you leave us negative/neutral feedback, please feel free to contact us, we are happy to solve the problems you encountered.

    1. Welcome to our Auto-opartsca store!

    2.We provide high quality, best price and excellent after-sales service!

    3.Thank you for visiting our eBay store. Our working hours are Monday to Friday, except weekends and holidays. If you have any questions about our items, please feel free to contact us. If your item malfunctions or has problems within the warranty period, please contact us first via eBay message, we will spare no effort to solve the problem for you until the problem is solved!


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    On 25-Aug-2026 at 20:05:55 EDT, seller added the following information:

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