AMT 394G-K5 Pump Head Only – Model 394G-95 3" NPT Pump End Kit
If you're maintaining an AMT 394G-95 sewage or trash pump, the 394G-K5 gives you a straightforward way to restore it without replacing the whole unit. This is the pump head only — the wet end of the pump — designed to bolt onto your existing motor and bring the pump end back to full working condition. It's also the correct replacement kit for anyone still running an older AMT 394A-95, since AMT lists this kit as the direct upgrade path.
Under the hood, the kit sticks with the same rugged approach AMT has used for decades on this pump line. The casing and volute are cast iron, built to stand up to years of abrasive, solids-laden liquid without cracking or wearing thin, and the impeller is stainless steel with a semi-open, self-cleaning design that resists clogging when debris, sticks, or stones pass through. The shaft seal pairs silicon carbide with Viton, a combination chosen specifically to hold up against abrasion rather than just clean water service. A built-in suction check valve helps the pump prime itself quickly after startup, and the casing and cleanout cover come apart easily when you need to clear a clog or inspect the impeller.
Because it ships as a pump head only, this kit is aimed at people who already own a compatible 394G-95 motor unit and just need to rebuild or replace the pump end — whether that's due to wear, cavitation damage, or simply upgrading an aging 394A-95 setup. And while pumps like this often get pigeonholed as marine equipment, that's not really where most of them end up working; these are everyday workhorses in plants, treatment facilities, and processing lines that need to move dirty water without complaint.
Key Features
- Pump head only (wet end) — designed to mount to a compatible motor unit
- Cast iron casing and volute for long-term durability in abrasive service
- Stainless steel, semi-open, self-cleaning impeller resists clogging
- Silicon Carbide/Viton (FKM) mechanical shaft seal for abrasion resistance
- Built-in suction check valve improves self-priming performance
- Self-primes to 20 feet
- Easily removable casing/cleanout cover for fast debris clearing
- Replaceable cast iron volute/wear plate
- Direct replacement for the earlier AMT 394A-95 pump end
Applications
- Sewage treatment and municipal wastewater handling
- Industrial process water and effluent transfer
- Canneries, breweries, wineries, and meat packing facilities
- Chemical processing and tanneries
- Pulp, wood chip, and slurry handling
- Factory sumps and loading dock drainage
- Manure pits and agricultural processing lines
- Snow-melting equipment and commercial boiler systems
Specifications
- Port size: 3" NPT suction and discharge
- Body material: Cast iron
- Impeller: Stainless steel, semi-open, self-cleaning
- Shaft seal: Silicon Carbide/Viton (FKM)
- Priming: Self-priming to 20 feet
- Fitted motor unit: 394G-95 (also replaces 394A-95)
- Liquid temperature range: 40°F to 180°F (4°C to 82°C)
- Fluid compatibility: Nonflammable fluids only, compatible with pump component materials
Frequently Asked Questions
Q: Does the 394G-K5 include a motor?
No. This kit is the pump head (wet end) only. It's designed to be installed onto a compatible existing motor, not sold as a complete motor-and-pump unit.
Q: Will the 394G-K5 fit an older AMT 394A-95 pump?
Yes. AMT lists the 394G-K5 as the direct replacement pump end kit for the earlier 394A-95 model, in addition to fitting the current 394G-95.
Q: What kind of liquids can this pump end handle?
It's built for nonflammable liquids compatible with its cast iron, stainless steel, and Viton components, including liquids containing solids like sticks, stones, and sludge, within a temperature range of 40°F to 180°F.
Q: Is this pump end kit only suitable for marine use?
No. While self-priming trash pumps are sometimes associated with marine work, this kit is most commonly used in industrial, municipal, and commercial settings such as treatment plants, food and beverage processing, and factory sump systems.
Q: What's included for maintenance access once installed?
The kit's casing and cleanout cover are designed for easy removal, so clogs can be cleared and the impeller inspected without a full pump teardown.
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