Generac PRO XC3000P vs Koshin STH-80X

Last updated: November 2, 2026

The Generac PRO XC3000P is the better gas water pump overall, rated 3.5 to 3.3. The Generac PRO XC3000P leads on flow and head. The Koshin STH-80X wins on value. The Koshin STH-80X costs $873.46 less ($725.54 vs $1,599).

Generac PRO XC3000P vs Koshin STH-80X

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every 3 in and up gas water pump; a clear win is highlighted. How we rank explains each one.

Factor weightGenerac PRO XC3000PKoshin STH-80X
Overall rating3.5/53.3/5
Value 30%52 $4.57 per gpm ($1,599, 350 gpm)69 $3.05 per gpm ($725.54, 238 gpm)
Flow 15%75 350 gpm maximum19 238 gpm maximum
Head 10%50 90 ft maximum head42 85 ft maximum head
Solids 15%76 passes solids up to 1.2 in50 solids size not published (neutral score used)
Warranty 30%50 3-year warranty for home use50 warranty not published (neutral score used)

Specifications

Generac PRO XC3000PKoshin STH-80X
Pumping
TypeTrashSemi-trash
Ports3 in3 in
Maximum flow350 gpm238 gpm
Maximum head90 ft85 ft
Suction lift26 ft26 ft
Largest solids1.2 in-
Engine and build
EngineGenerac G-Force OHC, 265 ccHonda GX160, 163 cc
Fuel tank2.9 gal0.8 gal
Runtime on a tank4.3 hr2 hr
Weight163 lb-
Warranty3 years-

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