Description
Overview:
This pump housing is a replacement volute casing for selected 2" (50.8 mm) portable water pumps, including the Koshin SEH50X and Honda WP20X. Made from robust cast aluminium alloy, it encloses the impeller, forms the flow passage, and helps protect the pumping mechanism during demanding site and outdoor use. By restoring a sound casing, it supports correct impeller clearance and smooth water flow, helping your pump prime and perform as intended. It is suitable for repair and maintenance where the original casing has worn, cracked, or become corroded. Engineered for a secure fit on compatible models, it offers a practical, long-lasting solution for tradespeople, farmers, grounds teams, and DIY users maintaining 2" (50.8 mm) clean and dirty water transfer pumps.
Key Features:
- Durable cast aluminium alloy construction for strength, low weight, and corrosion resistance
- Precisely formed volute to support efficient flow and stable pump performance
- Helps maintain correct impeller clearance for reliable priming and delivery
- Designed for straightforward fitting with standard workshop tools
- 2" (50.8 mm) size compatibility for the listed pump platforms
- Accurate mounting points for a secure, leak-tight assembly when used with serviceable seals
- Suitable for routine maintenance or as a like-for-like replacement of a damaged housing
- Replaces Honda OEM No. 78101 YE5 003 function on compatible machines
Typical Applications:
Restoring performance on 2" (50.8 mm) site, farm, landscaping, and facilities pumps used for dewatering excavations, transferring water from tanks and ponds, flood response, irrigation support, and general wash-down. Ideal when the original housing is pitted, cracked, or worn from abrasion, cavitation, or impact.
Also known as:
Pump casing, volute casing, pump body, pump case, impeller housing, water pump cover, outer casing, volute housing.
Fits Models:
SEH50X, WB20XT, WP20X
Alternate Part Numbers:
78101 YE5 003, 78101 YE5003
Product Specifications
| L&S Part No. | 011 578 |
|---|---|
| Unit of Sale | 1 |
| Applications | SEH50X, WB20XT, WP20X |
| Machine Type | Pumps |
| Fits Brands | Honda |
| Fits Models | WB20XT |
