4" Semi-Trash Water Pump Kit - For New Custom Built Pumps or Replacement
Replace your worn-out pump or create a new pump with this complete heavy-duty 4" semi-trash water pump assembly. Designed for high-volume water transfer applications, this pump is ideal for irrigation, agriculture, construction, flood control, ponds, and general water transfer where small debris may be present.
Unlike standard clear water pumps, this semi-trash design is capable of handling solids up to 3/4" in diameter, making it ideal for tougher pumping applications while still maintaining excellent flow performance.
Built with a durable aluminum housing, cast-iron volute and high-flow cast iron impeller design, this replacement pump delivers dependable performance for demanding jobs. The kit includes the major components needed for installation, including seals, couplers, clamps, strainer, and mounting hardware.
VPE Part # WP705
In stock
SKU
WP705-2605
$474.93
Replace your worn-out pump or create a new pump with this complete heavy-duty 4" semi-trash water pump assembly. Designed for high-volume water transfer applications, this pump is ideal for irrigation, agriculture, construction, flood control, ponds, and general water transfer where small debris may be present.
Unlike standard clear water pumps, this semi-trash design is capable of handling solids up to 3/4" in diameter, making it ideal for tougher pumping applications while still maintaining excellent flow performance.
Built with a durable aluminum housing, cast-iron volute and high-flow cast iron impeller design, this replacement pump delivers dependable performance for demanding jobs. The kit includes the major components needed for installation, including seals, couplers, clamps, strainer, and mounting hardware.
Perfect for replacing damaged or worn pump assemblies on many popular gas-powered engines with a 1" keyed shaft.
Fits Engines With 1" Keyed Shaft Including
- Honda GX Series Engines
- Honda iGX Series Engines
- Predator 301CC
- Predator 420CC
- NorthStar 301CC Engines
- NorthStar 420CC Engines
- Powerhorse 212CC
- Briggs & Stratton XR 10.0
- Briggs & Stratton XR 13.5
Also fits many additional engines using a standard 1" keyed shaft.
Replaces Pumps Found On Many Popular Units Including
- NorthStar 4" Semi-Trash Pump
- BE 4" Water Transfer Pump
- Vevor 4" Semi-Trash Pump
- DuroMax 4" Semi-Trash Pump
- STIHL 4" Semi-Trash Pump
And many other similar 4" semi-trash water pumps using a standard 1" keyed shaft engine setup (check that yours uses a 1" keyway shaft before ordering, even if yours is listed above!)
Performance Specifications
- Pump Size: 4 Inch
- Pump Type: Semi-Trash Water Pump
- Maximum Flow Rate: Approximately 400 GPM
- Maximum Lift Height (Shut-Off Head): Approximately 32.8 Feet
- Solids Handling Capacity: Up to 3/4" Diameter
- Shaft Compatibility: 1" Keyed Shaft
- Housing Material: Heavy-Duty Aluminum
- Volute and Impeller Material: Cast Iron
Performance may vary depending on engine size, RPM, hose length, elevation, suction conditions, and application setup.
Mounting Specifications
PTO Square Bolt Pattern
- Bolt Circle Diameter: 5.0 Inches (127 mm)
Engine Base Mounting Pattern
- Dimensions: 7.72" × 3.7"
- Approx. 196 mm × 94 mm
Adjustable Mount Compatibility
Also compatible with adjustable mounts cut for:
- 7-11/16" × 3-3/8"
- Approx. 195 mm × 86 mm
Package Includes
- Front Housing
- Back Housing
- O-Ring
- Inlet & Outlet Seals
- Impeller
- Impeller Housing
- Inlet Hose Couplers
- Outlet Hose Couplers
- Hose Clamps
- Water Strainer
- Housing Assembly Bolts
- Engine Mounting Bolts
Includes all items pictured.
Features
- Heavy-duty aluminum pump housing
- Semi-trash pump design handles solids up to 3/4"
- High-flow impeller design for excellent water transfer performance
- Built-in water strainer helps reduce debris damage
- Reliable self-priming operation after initial prime
- Complete installation hardware included
- Designed for demanding residential, agricultural, and commercial applications
Common Applications
- Irrigation systems
- Agricultural water transfer
- Construction site dewatering
- Flood and storm cleanup
- Pond and pool draining
- General water transfer applications
Important Compatibility Note
Please verify that your existing pump uses a standard 1" keyed output shaft before ordering. Shaft size and mounting pattern must match your existing setup for proper fitment.
Important Notes
- Engine is NOT included
- Designed for semi-trash water applications
- Handles solids up to 3/4" in diameter
- Not intended for large rocks, sticks, or abrasive slurry materials
- Verify shaft size and mounting compatibility before ordering
- Professional installation recommended for best performance
- Not designed for pumping flammable liquids
Shipping, Warranty, and Holiday Policies
Free Shipping
Our Free Shipping is available to US customers and generally takes 4-8 business days. Please provide an address that can receive both UPS and US Postal Service shipments.
Alaska and Hawaii Customers Please Note: Free Shipping and Flat Rate Shipping are ground shipping. For orders to Alaska and Hawaii, delivery may take significantly longer as shipments are transported by sea. For those customers, Priority Mail or UPS are generally the best options unless time is not of the essence.
Flate Rate Shipping
Our Flat Rate Shipping is designed to offer the best value versus delivery time for most orders. The rate is determined by the total weight of your order (see chart below). We choose the shipping carrier—either USPS or UPS—on a per-order basis. Additional shipping options are available at checkout if faster delivery is required. For Canadian orders, Priority orders will ship through either USPS Internatoinal or GlobalPost.
Important Notes:
Alaska and Hawaii Customers Please Note: Free Shipping and Flat Rate Shipping are ground shipping. For orders to Alaska and Hawaii, delivery may take significantly longer as shipments are transported by sea. For those customers, Priority Mail or UPS are generally the best options unless time is not of the essence.
Flat Rate Shipping (Based on Total Order Weight):
- Under 0.76 lbs: $7.99
- 0.76 lbs - 1 lb: $8.99
- 1.01 lbs - 5 lbs: $12.99
- 5.01 lbs - 30 lbs: $14.99
- 30.01 lbs - 50 lbs: $24.99
- 50.01 lbs - 100 lbs: $44.99
- 100.01 lbs - 150 lbs: $64.99
- Over 150 lbs: $99.99
UPS and USPS shipping
For customers who want to ensure that either UPS or USPS (US Priority Mail and International) are chosen as the carrier, please choose a UPS or USPS shipping option.
General Shipping Information
-
Processing Times:
- Orders placed before 2 PM ET (Mon-Fri) ship the same day (excluding holidays).
- Orders placed after 2 PM ET ship the next business day.
-
Shipping Considerations:
- Weekends and holidays do not count as shipping days (e.g., a next-day air order placed Friday before 2 PM ET arrives Monday).
- UPS does not deliver on weekends.
-
Special Notes:
- UPS cannot deliver to P.O. boxes; such orders will be shipped via USPS or canceled.
- Canadian and international orders are shipped FOB, with all duties and taxes the buyer’s responsibility. Delivery times for international orders cannot be guaranteed.
- V Power Equipment ensures timely delivery to the courier but cannot refund shipping costs if UPS or USPS fails to deliver on time.
International Orders
Duty Fees:
- Any duty fees levied by your country are your responsibility to pay. Our shipping includes only the cost to ship the order.
- International orders can take weeks to arrive if you choose Global Post or USPS. If you need your international order quickly, please choose a UPS option.
- Wednesday, January 1: New Year’s Day
- Monday, January 20: Martin Luther King Jr. Day
- Monday, February 17: Presidents' Day
- Monday, May 26: Memorial Day
- Thursday, June 19: Juneteenth National Independence Day
- Friday, July 4: Independence Day
- Monday, September 1: Labor Day
- Monday, October 13: Columbus Day
- Tuesday, November 11: Veterans Day
- Thursday, November 27: Thanksgiving Day
- Thursday, December 25: Christmas Day
- Defects causing the item not to work properly.
- Damage caused during the customer’s possession.
- Cracked water pump housings caused by over-pressurization or freezing.
- Includes freight charges for covered items.
- Must be purchased with the original product.
- Does not cover normal wear and tear or modified products.
- Exclusion: Cracked water pump housings caused by over-pressurization or freezing.
Shipping Time:
Holiday Closures
We observe the same holidays as the United States Postal Service. Orders placed on these days will ship the next business day.
2025 Holiday Schedule:
Standard Warranty
All products come with a 90-day repair, replace, or refund warranty. For items used commercially, the warranty is limited to 30 days.
Warranty Coverage Includes:
Warranty Exclusions:
If your item was damaged during shipping, report it to the shipping company and contact us for assistance.
Extended Warranty
Our Extended Warranty provides one-time repair, replacement, or refund coverage after the standard warranty expires.
Key Details:
The extended warranty is valid only for shipments within the lower 48 U.S. states.
Why Buy From V Power Equipment?
Customer Satisfaction is Our Priority
At V Power Equipment, we value every customer and are dedicated to making your experience seamless from start to finish. Whether you’re purchasing a single part or outfitting an entire system, we’re here to ensure you get the best value for your investment. Your success is our success, and we strive to exceed expectations with every order.
Unbeatable Product Quality and Selection
We pride ourselves on offering high-quality parts and equipment. Every product we sell is vetted to meet our high standards for durability, performance, and value. Our budget-friendly extended warranty options reflect the confidence we have in the quality and reliability of our products.
Exceptional Value and Competitive Pricing
We combine great prices with premium service, making us the best choice for your equipment needs. You won’t just save money—you’ll gain peace of mind knowing you’re buying from a company that stands behind its products. Plus, with fast and reliable shipping, your parts will arrive when you need them most.
Commitment to Customer Care
From fast response times to efficient order processing, we’re committed to delivering a stress-free shopping experience. Our team works hard to ensure your orders are handled with care, shipped promptly, and arrive as expected. If there’s ever an issue, we’ll make it right because your satisfaction is our top priority.
Join Our Community of Satisfied Customers
We’re passionate about helping our customers succeed. When you shop with V Power Equipment, you’re not just buying parts—you’re partnering with a business that values integrity, quality, and customer satisfaction.
V Power Equipment is a DBA of Horizons LLC.
Related Products
Check items to add to the cart or
