Get pumped. Whether you're after better performance or you're replacing a broken pump, you can equip your pressure washer with some solid engineering when you choose the Simpson 90039 AAA 4,000 PSI 3.3 GPM Triplex Plunger Pump Kit. This pressure washer pump performs at a maximum pressure of 4,000 PSI at 3.3 gallons per minute. It comes with everything you need for a complete setup, including a siphon tube with filter, mounting bolts, and shaft key. This pump also features a fully adjustable unloader system, PowerBoost Technology for better pump performance, and thermal overload protection for peace of mind. No detail is overlooked from dual oversized radial ball bearing and ceramic coated pistons that cut down on friction, to protection against corrosion, contamination, and lube failure with the Fully anodized die cast aluminum crankcase. Who knew triplex plunger pumps could be so exciting?
Features
4000 PSI @ 3.3 GPM
PowerBoost Technology
Fully adjustable unloader system with ergonomic control
Sight glass and advanced oil seal technology, does away with the need for a dipstick
Thermal relief protection to prevent pump overheating
Dual oversized radial ball bearings are installed for better wear, friction resistance and precision ceramic coated pistons for extended seal life
Crankcase is manufactured from fully anodized die cast aluminum for corrosion protection and is sealed to prevent contamination and lube failure
Gas engine flange and hollow shaft that fits most horizontal shaft engine.
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Join us and Save 5% on your first order
As a subscriber you will receive the following perks:
- Advanced notice of deals and promotions
- Helpful content on equipment use, selection, and more
- Exciting new product annoucements
How to get 5% off
Just enter your email and will send the coupon code to your email.
Apply that code to receive your discount*
* Promo only valid for first purchase, promo is non transferrable, promo doesn't apply to all items
Join us and Save 5% on your first order
As a subscriber you will receive the following perks:
- Advanced notice of deals and promotions
- Helpful content on equipment use, selection, and more
- Exciting new product annoucements
How to get 5% off
Just enter your email and will send the coupon code to your email.
Apply that code to receive your discount*
* Promo only valid for first purchase, promo is non transferrable, promo doesn't apply to all items
Shipping and Returns
Shipping should be simple
We offer free shipping on orders over $80, less than $80 we charge a single flat rate fee of $8.50
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Please note for certain product categories particularly filters there is at times an additional charge for shipping.
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Not all products qualify for free shipping.
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Except as otherwise described below, if you are not satisfied for any reason products may be returned within 30 days of shipment for a full credit or exchange (if the product is undamaged). When you make your return, you’ll need to note credit or exchange. Returned items must be in the original packaging. To initiate a return you can contact us via phone and we can coordinate the return with you.
If you have questions please contact us at 866 373 5658
Shipping and Returns
Shipping should be simple
We offer free shipping on orders over $80, less than $80 we charge a single flat rate fee of $8.50
Our primary carriers include UPS and USPS and for large items a variety of freight carriers.
Please note for certain product categories particularly filters there is at times an additional charge for shipping.
Shipping policy exceptions
Not all products qualify for free shipping.
No-Hassle Returns
Except as otherwise described below, if you are not satisfied for any reason products may be returned within 30 days of shipment for a full credit or exchange (if the product is undamaged). When you make your return, you’ll need to note credit or exchange. Returned items must be in the original packaging. To initiate a return you can contact us via phone and we can coordinate the return with you.
If you have questions please contact us at 866 373 5658
Shipping and Returns
Shipping should be simple
We offer free shipping on orders over $80, less than $80 we charge a single flat rate fee of $8.50
Our primary carriers include UPS and USPS and for large items a variety of freight carriers.
Please note for certain product categories particularly filters there is at times an additional charge for shipping.
Shipping policy exceptions
Not all products qualify for free shipping.
No-Hassle Returns
Except as otherwise described below, if you are not satisfied for any reason products may be returned within 30 days of shipment for a full credit or exchange (if the product is undamaged). When you make your return, you’ll need to note credit or exchange. Returned items must be in the original packaging. To initiate a return you can contact us via phone and we can coordinate the return with you.
