Cat Pumps
4DNX27GSI Cat Pump Pressure Washer Triplex Positive Displacement Pump 2.7 GPM 3000 PSI , Fits a Standard 3/4-inch Crankshaft , Mounts to a Standard SAE J609 Gas Engine Flange , Brass Block
4DNX27GSI Cat Pump Pressure Washer Triplex Positive Displacement Pump 2.7 GPM 3000 PSI , Fits a Standard 3/4-inch Crankshaft , Mounts to a Standard SAE J609 Gas Engine Flange , Brass Block
Couldn't load pickup availability
- FREE SHIPPING to The Contiguous United States! (Excluding Alaska & Hawaii)
- Found a Better Price? Contact Us, We'll See if We Can Get You a Better Deal!
- In Stock & Ships from The United States FAST!
- For Quantity Discounts Contact Us for a Quote!
- Customers Outside The Contiguous United States, Please Contact Us for a Quote!
- Call: 1 (760) 598-0189
- Email: hctivista@gmail.com
4DNX27GSI Cat Pump Pressure Washer Triplex Positive Displacement Pump 2.7 GPM 3000 PSI , Fits a Standard 3/4-inch Crankshaft , Mounts to a Standard SAE J609 Gas Engine Flange , Brass Block
CAT Pumps 4DNX27GSI Plunger Pump
The CAT Pumps 4DNX27GSI is a specialized Triplex Plunger Pump designed as a high-performance upgrade for direct-drive gas engine systems. As a true Positive Displacement Pump, it utilizes three synchronized ceramic plungers to deliver a steady, reliable flow that maintains its volume even when the nozzle pressure changes. This model is constructed with a durable Brass manifold and 304 Stainless Steel valve assemblies, ensuring significantly longer service life and corrosion resistance compared to the axial cam pumps typically found on consumer machines.
Engineered for seamless integration, the 4DNX27GSI features a 3/4" hollow shaft that mounts directly to standard 5.5HP–6.5HP gas engines. It comes fully assembled with an integral regulating unloader and a chemical injector, offering a complete "drop-in" solution for pressure washing applications. With a verified flow rate of 2.7 GPM at 3,000 PSI, it delivers professional-grade stripping power for cleaning concrete, siding, and heavy equipment.
| SPECIFICATION | DETAILS |
| Model Number | 4DNX27GSI |
| Manufacturer | CAT Pumps |
| Pump Type | Triplex Plunger Pump |
| Displacement Type | Positive Displacement |
| Material (Manifold) | Brass |
| Material (Valves) | 304 Stainless Steel |
| Max Flow Rate | 2.7 GPM (10.2 LPM) |
| Applied Pressure (Test) | 3000 psi |
| Max Operating Pressure | 3000 psi |
| Max Liquid Temp | 140°F (60°C) |
| Inlet Port Size | 3/4" GHF (Garden Hose Fitting) |
| Discharge Port Size | 3/8" NPT(M) |
| Shaft Diameter | 3/4" Hollow |
| RPM | 3450 |
Product Disclaimer & Limitation of Liability
AI-Assisted Content & Information Accuracy: We strive to ensure that all product descriptions, specification tables, testing data, and cross-reference information are accurate and up-to-date. However, content presented on this page—including product descriptions, technical specification tables, bulleted data, and associated text—is compiled or formatted with the assistance of artificial intelligence (AI). While we review this content for general accuracy, AI-assisted data can contain errors, omissions, or inaccuracies. All information is provided for general reference purposes only. We are not legally liable for typographical errors, omissions, or inaccuracies within product descriptions, tables, or equivalent-model recommendations. We expressly disclaim all liability for damages, system failures, misapplications, or voided warranties resulting from reliance on any information presented on this site.
Manufacturer Updates & Official Specifications: Manufacturers frequently revise product designs, component materials, and technical specifications without prior notice. Official manufacturer documentation and data sheets are the sole authoritative sources for all product specifications and strictly supersede any physical dimensions, specifications, or visual representations presented on this page. It is the customer's sole responsibility to independently verify all technical data—including but not limited to pressure ratings, dimensions, material compatibility, and performance metrics—against the official manufacturer data sheet prior to purchase and installation.
Order Verification & Chargeback Policy: It is the buyer's sole responsibility to independently verify that the exact manufacturer part number being ordered is correct and entirely compatible with their specific application prior to checkout. By placing an order, you explicitly agree that if the physical item shipped perfectly matches the manufacturer part number listed on your official invoice, the order is legally considered fulfilled as described. Disputes or chargebacks claiming an item is "Not as Described" based on supplementary website text, specification tables, AI-generated content, or compatibility assumptions will not be recognized or honored.
Pricing, Availability & Right to Cancel: All prices, promotional offers, and inventory statuses are subject to change without notice. In the event a product is listed at an incorrect price or with inaccurate stock availability due to a typographical, technical, or system error, we reserve the right to refuse or cancel any orders placed for that item. If an order is canceled after your payment has been processed, a full refund will be initiated immediately to your original payment method.
Share
