AAA 90039
Score: 92/100
CAT 67DX
Score: 85/100Rankings
The AAA 90039 is a professional-grade horizontal triplex plunger replacement pump delivering 4000 PSI and 3.5 GPM. It features durable components like forged brass heads and ceramic pistons, making it ideal for heavy-duty industrial tasks. However, it strictly requires an 11 HP engine and is not suitable for underpowered units.
The CAT Pumps 67DX39G1I is a high-performance direct-drive triplex plunger pump delivering 4000 PSI at 3.9 GPM, ideal for professional surface cleaning. Its adjustable unloader and chemical injector offer significant versatility, though it is limited to cold water use. It is best suited for horizontal shaft gas engine setups utilizing 1-inch SAE J609 flange mounts.
| Attribute | | |
|---|---|---|
4,000 PSIbest | 4,000 PSIbest | |
3.5 GPM | 3.9 GPMbest | |
1 inchesbest | 1 inchesbest | |
— | 3,450 RPMbest | |
0.75 inchesbest | 0.5 inches | |
0.375 inchesbest | 0.375 inchesbest | |
11 quartsbest | 0.423 quarts | |
| ↓ lower better | 14 lbsbest | 17 lbs |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Flow Rate (GPM) | 3.5 GPM | 3.9 GPM |
Pump Type | Horizontal Triplex Plunger | Triplex Plunger |
Compatibility & Mounting(1) | ||
Inlet Port Size (inches) | 0.75 inches | 0.5 inches |
Durability & Maintenance(1) | ||
Oil Capacity (quarts) | 11 quarts | 0.423 quarts |
Physical(1) | ||
Product Weight (lbs) | 14.0 lbs | 17.0 lbs |
Features & Control(1) | ||
Unloader Type | Adjustable Hand Turn Knob | Integral Adjustable |
Safety & Features(1) | ||
Max Water Temperature (°F) | N/A °F | 140 °F |
Products in the top-left offer the best value (high score, low price).
Professional reviewers from sources like Simpson Cleaning and Ferguson praise the AAA 90039 for its engineered efficiency and durability, highlighting its PowerBoost technology and dual bearings as key advantages for tough environments.
Everyday users generally view the pump as a cost-effective replacement that extends the life of existing pressure washers. Common praise focuses on its reliability for heavy-duty cleaning and ease of installation.
Manufacturer documentation emphasizes the pump's reliability for pressure washing, highlighting the triplex plunger design for high efficiency and low pulsation. The direct-drive capability is noted for eliminating the need for pulleys, belts, and gearboxes, while retail specifications point out the ease of servicing and CARB approval.
No consumer reviews, praise, or complaints were found in the search results. Official documents imply suitability for demanding use through durable components, but no real-world user data is available to assess everyday sentiment.
