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4000 PSI 4.76 GPM Pressure Washer Pump & 3/8" Quick Connect Pressure Gauge Kit, Horizontal Triplex Pump with External Unloader, Fits 1" Q-Type Shaft for 11HP 13HP Gas Engine

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Honda GX340 11HP GX390 13 HP 1" Q-Type Shaft Gas Engine

  • RSV4G40 RSV4G40HDF40EZ Pump
  • DeWalt 4240 Honda Engine
  • Devilblis EXHP3640ย 
  • Annovi Reverberi RKV4G36ย 
  • ใ€๐Ÿฐ๐Ÿฌ๐Ÿฌ๐Ÿฌ ๐—ฃ๐—ฆ๐—œ & ๐Ÿฐ.๐Ÿณ๐Ÿฒ ๐—š๐—ฃ๐—  ๐—ฃ๐—จ๐— ๐—ฃ ๐—ž๐—œ๐—งใ€‘ Heavy-duty horizontal triplex pressure washer pump delivers up to 4000 PSI and 4.76 GPM for demanding cleaning applications. Includes a pressure gauge for added value and convenience.
  • ใ€๐—ค-๐—ง๐—ฌ๐—ฃ๐—˜ ๐—ฆ๐—›๐—”๐—™๐—ง ๐—ข๐—ก๐—Ÿ๐—ฌใ€‘ Designed ๐Ž๐๐‹๐˜ ๐Ÿ๐จ๐ซ ๐Ÿ" ๐-๐“๐ฒ๐ฉ๐ž ๐ก๐จ๐ฅ๐ฅ๐จ๐ฐ ๐ฌ๐ก๐š๐Ÿ๐ญ๐ฌ. Fits Honda GX340 11HP and GX390 13HP engines with the correct Q-Type shaft. ๐—ก๐—ผ๐˜ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐˜๐—ถ๐—ฏ๐—น๐—ฒ ๐˜„๐—ถ๐˜๐—ต ๐˜€๐˜๐—ฎ๐—ป๐—ฑ๐—ฎ๐—ฟ๐—ฑ ๐Ÿญ" ๐˜€๐—ต๐—ฎ๐—ณ๐˜๐˜€ ๐—ผ๐—ฟ ๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐˜€๐—ต๐—ฎ๐—ณ๐˜ ๐˜๐˜†๐—ฝ๐—ฒ๐˜€. ๐—ฉ๐—ฒ๐—ฟ๐—ถ๐—ณ๐˜† ๐˜€๐—ต๐—ฎ๐—ณ๐˜ ๐˜๐˜†๐—ฝ๐—ฒ ๐—ฏ๐—ฒ๐—ณ๐—ผ๐—ฟ๐—ฒ ๐—ผ๐—ฟ๐—ฑ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด.
  • ใ€๐Ÿฏ/๐Ÿด" ๐—ค๐—จ๐—œ๐—–๐—ž-๐—–๐—ข๐—ก๐—ก๐—˜๐—–๐—ง ๐—ฃ๐—ฅ๐—˜๐—ฆ๐—ฆ๐—จ๐—ฅ๐—˜ ๐—š๐—”๐—จ๐—š๐—˜ใ€‘ Included gauge connects easily with a ๐Ÿ‘/๐Ÿ–" ๐ช๐ฎ๐ข๐œ๐ค-๐œ๐จ๐ง๐ง๐ž๐œ๐ญ ๐Ÿ๐ข๐ญ๐ญ๐ข๐ง๐ , allowing convenient real-time monitoring of operating pressure.
  • ใ€๐‡๐„๐€๐•๐˜-๐ƒ๐”๐“๐˜ ๐“๐‘๐ˆ๐๐‹๐„๐— ๐‚๐Ž๐๐’๐“๐‘๐”๐‚๐“๐ˆ๐Ž๐ใ€‘ Ceramic plungers resist wear and pitting, while the forged brass manifold provides excellent strength and corrosion resistance. Compatible with RSV4G40, RSV4G40HDF40EZ, RKV4G36, EXHP3640, DeWalt 4240 with Honda engine and select AR applications.
  • ใ€๐—˜๐—ซ๐—ง๐—˜๐—ฅ๐—ก๐—”๐—Ÿ ๐—ง๐—ฅ๐—”๐—ฃ๐—ฃ๐—˜๐——-๐—ฃ๐—ฅ๐—˜๐—ฆ๐—ฆ๐—จ๐—ฅ๐—˜ ๐—จ๐—ก๐—Ÿ๐—ข๐—”๐——๐—˜๐—ฅใ€‘ Equipped with a trapped-pressure unloader/regulator. Some pressure may remain in the high-pressure hose after shutdownโ€”๐ญ๐ก๐ข๐ฌ ๐ข๐ฌ ๐ง๐จ๐ซ๐ฆ๐š๐ฅ ๐Ÿ๐จ๐ซ ๐ญ๐ก๐ข๐ฌ ๐๐ž๐ฌ๐ข๐ ๐ง. Not suitable for applications requiring a flow-actuated unloader.

REAL-WORLD TEST & REVIEW

Watch Brian from The Repair Guy put our 4000 PSI Triplex Pressure Washer Pump to the test. See his hands-on inspection and real-world performance testing.

Video review by Brian โ€“ The Repair Guy. Watch the original video on YouTube .

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More Information:
  • High Pressure Triplex Pump 15 Series
  • Max Pressure: 3600 PSI , Flow Rate: 4.76 GPM, 3400 RPM with a 13 HP
  • 1" Shaft
  • Forged Brass manifold provides high strength and corrosion resistance
  • Anodized die case crankcase with large cooling fin for maximum heat dissipation
  • Hardened and precision grinding crankshaft for maximum durability & longer life
  • Ceramic plunger to increase resistance to pitting and wear
  • Strengthened one piece alloy aluminum connecting rod
  • Reinforced pop off valve cage
  • Ball and roller bearing for max life and load distribution
  • In-line water filter
  • Fixed rate detergent injector
  • Over pressurized prevention jam nut
  • Inlet: Female 3/4"
  • Outlet: 3/8" quick disconnect

Product Specifics:

  • 4.76 GPM 3600 PSI Triplex High Pressure Washer Pump replaces Cat General AR
  • The plunger on this pump is ceramic, increasing resistance to pitting and wear.
  • 1" Q-Type Hollow Shaft Pump fits GX 340 11HP GX 390 13 HP Engine
  • Forged Brass manifold provides high strength and corrosion resistance
Please note that the unloader needs to be installed onto the pump before use.
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Please note that the shaft key is included with the engine, not the pump. Our pump does not come with a shaft key.
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Our pump uses a trapped unloader pressure regulator, which retains some pressure in the high-pressure pipe after shutdown. This is a common design.

If you require a flow-sensing regulator with no pressure retention, which is more expensive and less common, our pump is not the right choice.

If you are not sure, please send us email to support@sigmapowers.com and we will get back to you asap.

    Orders placed by 2:00 PM ET on a business day are typically shipped the same business day. Orders placed after 2:00 PM ET, or on weekends or holidays, are typically shipped the next business day.

    We primarily use USPS, FedEx, and UPS. Most orders are shipped using standard carrier services, and estimated delivery times vary depending on the destination and shipping method selected.

    Standard shipping rates generally apply to addresses within the contiguous 48 U.S. states. Additional shipping charges may apply to orders shipped to Alaska, Hawaii, Puerto Rico, Guam, and other U.S. territories.

    Expedited shipping options, including Overnight and 2-Day shipping, may be available at checkout for an additional charge.

    1. How to Start a Return
    Please contact us by email within 30 days of receiving your order before returning any item. We will confirm your eligibility and send instructions.ย Returns sent without prior contact may be delayed or refused.

    2. Defective, Damaged, or Incorrect Items
    If your item arrives defective or damaged, or if we sent you the wrong item, please email us with your order number and photos showing the issue.
    Once the claim is reviewed and approved, we will cover the return shipping cost, if a return is required, and either provide a replacement or issue a full refund.

    3. Non-Defective Returns
    If you ordered the wrong part, no longer need the item, or simply changed your mind, the item must be unused, uninstalled, and in resalable condition. Used or installed items are generally not eligible for return.

    • You are responsible for the return shipping cost.
    • A 15% restocking fee applies, which may be waived at our discretion.
    • Original shipping and handling charges are non-refundable.

    4. Refunds
    Refunds are normally issued within 2 business days after the returned item is received and inspected.
    Refunds will be issued to the original payment method. Depending on your bank or payment provider, it may take several additional business days for the refund to appear in your account.