--- product_id: 114073576 title: "P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv – 4500 PSI 10.5 GPM" brand: "pa pulsar" price: "643.50 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/114073576-p-a-unloader-valve-pressure-washer-pump-pulsar-4-rv store_origin: TN region: Tunisia --- # 10.5 GPM max flow rate 4500 PSI max pressure Dual inlet/bypass ports P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv – 4500 PSI 10.5 GPM **Brand:** pa pulsar **Price:** 643.50 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power up your clean game with precision and durability! ## Quick Answers - **What is this?** P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv – 4500 PSI 10.5 GPM by pa pulsar - **How much does it cost?** 643.50 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/114073576-p-a-unloader-valve-pressure-washer-pump-pulsar-4-rv) ## Best For - pa pulsar enthusiasts ## Why This Product - Trusted pa pulsar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Upstream O-rings prevent fitting ejection under overpressure, keeping your setup secure and worry-free. - • **Built to Last:** Durable brass construction and anti-rotation piston design for reliable, long-term performance under heavy use. - • **Versatile Compatibility:** Direct replacement for General Pump PULSAR4HP and AR Comet Cat pumps, making upgrades seamless. - • **Effortless Flow Management:** Optimized internal passages reduce pressure loss, maximizing efficiency and power delivery. - • **Precision Pressure Control:** Knob with locknut for fine-tuned pressure adjustment ensures optimal cleaning power every time. ## Overview The P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv delivers a robust 4500 PSI max pressure and 10.5 GPM flow rate, engineered with brass construction and advanced anti-rotation piston technology. Featuring dual inlet and bypass ports plus a locknut-equipped pressure regulator knob, it offers precise control and enhanced safety. Designed as a direct replacement for popular high-pressure pumps, this Italian-made valve ensures efficient, reliable performance for professional-grade pressure washing. ## Description Replacement for General Pump PULSAR4HPOptimized internal passages that guarantee reduced pressure loss. Antirotation device of the piston positioned inside the valve and obtained by an hexagonal sector of the piston itself. O-rings of the fittings positioned upstream to the thread : no risk of fittings ejected in case of overpressure. Double feed connection. Version with knob fitted with locknut for minimum working pressure adjustment.1) The valve has been designed for a continuous use with water at a temperature of 60°C (140°F). It can work for short periods with water at the maximum temperature of 90°C (195°F).2) When the valve is in bypass mode, this is the decrease of pressure that has to occur in the circuit downstream of the valve, in order that the valve can restore the working pressure in the system. The indicated figure is expressed as a percentage of the pressure setting (working pressure).3) If the valve is fed through the lower inlet port, the maximum flow rate is 20 l/min. At gun closure, a pressure increase occurs in the circuit downstream of the valve. This pressure increase is used to activate the valve and discharge all the flow in bypass. The value of the pressure increase cannot be calculated. It depends on the correct setting of the valve (see PRESSURE ADJUSTMENT/SETTING) and on the layout of the system: flow rate, working pressure, length and characteristic of the tubes, closing time of the gun. ## Features - Max. permissible pressure: 4500 psi (310 bar), Rated pressure: 4050 psi (280 bar), Max. flow rate: 10 US gpm (40 L/min), Inlet/outlet/bypass: ⅜″ NPT F, Max. temperature: 195 °F (90 °C) - Made in Italy. Unloader valve with 2 ports each for inlet and bypass, and a knob on the pressure regulator for convenient adjustment. - Quality Replacement Unloader Valvefor All High Pressure pumpAR Comet Cat pump BE. Replacement for General Pump PULSAR4HP - Product number 60.0007.65 - 7x5 toll-free phone, email and live chat support from Canada ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Brass | | Brand | PA PULSAR | | Inlet Connection Type | ⅜ inch NPT Female | | Maximum Operating Pressure | 4500 Pound per Square Inch | | Number of Ports | 2 | | Manufacturer | PA Spa | | UPC | 748347675764 | | Item Weight | 1.72 pounds | | Package Dimensions | 7.72 x 3.46 x 1.81 inches | | Item model number | 60.0007.65 | | Is Discontinued By Manufacturer | No | | Size | ⅜ inch | | Color | Black | | Style | External bypass | | Power Source | corded-electric | | Item Package Quantity | 1 | | Flow Rate | 10.5 Gallons Per Minute | | Included Components | Regulator Knob | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Material:** Brass - **Brand:** PA PULSAR - **Inlet Connection Type:** ⅜ inch NPT Female - **Maximum Operating Pressure:** 4500 Pound per Square Inch - **Number of Ports:** 2 - **Manufacturer:** PA Spa - **UPC:** 748347675764 ## Images ![P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv – 4500 PSI 10.5 GPM - Image 1](https://m.media-amazon.com/images/I/31jntS83sEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect OEM replacement! *by S***R on April 22, 2025* Exact replacement for my commercial pressure washer. Delivered fast and had my machine back on the road making money in no time! ### ⭐⭐⭐⭐⭐ Back up to full pressure *by J***T on June 4, 2023* The media could not be loaded. Works Great ! Old one was leaking out of bypass line when pulling the trigger. When pulling trigger the only water that you see should be spaying out of the tip of the wand. SHE WORKS !!!!! ### ⭐⭐⭐⭐⭐ PERFECT FOR MY HOT WATER PRESSURE WASHER *by D***R on August 27, 2023* Im not a paid sponser but I will share that the ease of use and installation plus durability was well worth it. 10 out of 10.... ## Frequently Bought Together - P.A. Unloader Valve Pressure Washer Pump Pulsar 4/Rv – 4500 PSI 10.5 GPM - Raincovo Pressure Washer Quick Connect 3/8 Inch, Pressure Washer Fittings, Adapter Set, Male Thread, 4 Pieces - RIDGE WASHER Pressure Washer Gauge with 3/8 Inch Quick Connect Socket and Plug, 6000 PSI --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/114073576-p-a-unloader-valve-pressure-washer-pump-pulsar-4-rv](https://www.desertcart.tn/products/114073576-p-a-unloader-valve-pressure-washer-pump-pulsar-4-rv) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-22*