We may earn a small commission on purchases made through our links.

Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.

x
Sorry, Something went wrong!
AAA

AAA 4000 PSI 3.5 GPM Horizontal Replacement Pressure Washer Pump Kit, 90039

✅ In stock
F
Grade
💤 Not a Deal
20.99/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$329.99
Listed $329.99
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 11, 2026 4:38 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • 💰The current price is slightly above the going rate for this product — worth watching for a drop.
  • 📉Going back roughly eight months, a more competitive price has not appeared — this stands out as a strong value by recent standards.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 3.99/20
Deal Strength 13/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Amazon.com
🚚 Shipping Free Shipping

Product Details

✓Extend the life of your pressure washer: Save money by replacing your pump instead of buying a whole new power washer. This easy-to-install kit is great for power washers that can support 4000 PSI at 3.5 GPM to wash walls, sidewalks, vehicles, and more
✓Compatibility: SAE standard bolt pattern fits many gas pressure washers with horizontal engines. To ensure compatibility, be sure to match engine orientation, PSI, GPM, engine shaft diameter, and current pump inlet and outlet connection
✓Adjustable power: Pump includes PowerBoost Technology that delivers higher pressure at the nozzle for a more efficient cleaning experience; There is also a hand turn knob that lets you reduce power at your convenience for tasks that require lower pressure
✓Know when to change your oil: The sight glass and advanced oil seal technology eliminates the need for a 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
✓Standard Connections: This replacement pump features a garden hose inlet and quick connect high pressure hose outlet; Use it with many pressure washer hoses, including Simpson Armor 41114, 41096, 41115 or Simpson Monster 41113, 41028, 41030, 41032, 41034

⚙️ Specifications

Brand
AAA
Color
Metallic
Material
Brass
Style
PowerBoost Technology
Product Dimensions
11"L x 11"W x 7.5"H
Power Source
Gas Powered
Item Weight
14 pounds
Maximum Flow Rate
3.5 gpm
Global Trade Identification Number
00879399002090
Manufacturer
Simpson Cleaning
UPC
879399002090
F
$329.99
Check Deal →