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Catalog / Pumps / Dewatering Pumps / Centrifugal Dewatering Pump
Honda

WB20

164 gpm
Flow rate
105 ft (32.0 m)
Max head
46.3 lb (21 kg)
Operating weight
2 in (50.8 mm)
discharge port diameter
122 cm3
engine displacement
2 L
fuel tank capacity
Honda WB20

Equivalent across brands

Compare side by side →

Comparable machines from other manufacturers, scored on normalised, manufacturer-sourced specs.

ModelMatchFlow rateMax headOperating weight
Magnum MDP200 95% 137 gpm105 ft (32.0 m)-
Magnum MTP200 88% 185 gpm92 ft (28.0 m)-
Ironton 750131 86% 176 gpm82 ft (25.0 m)-
Generac MDWP 74% -50 ft (15.2 m)-
Generac MCP5411-3 74% -50 ft (15.2 m)-
Generac MCP5437 74% -50 ft (15.2 m)-

Documents

Operator Manual ↓
Official ✓ Verified source Jul 2026
Parts Manual ↓
Official ✓ Verified source Jul 2026

Full specifications

Bore and stroke2.4" x 1.7" ↗
Commercial Warranty12 months ↗
Compression Ratio8.5:1 ↗
Dimensions (LxWxH)19.3" x 14.4" x 16.5" ↗
Discharge capacity164 gal/min ↗
Discharge port diameter2" NPT ↗
Displacement118cc ↗
Drive systemDirect ↗
Dry weight44 lb. ↗
EngineGX120 ↗
Fuel Capacity0.53 gal ↗
Impeller4 Vane Cast Iron ↗
Maximum pressure45 psi ↗
Mechanical Seal (Pump case / impeller)Silicon Carbide/Silicon Carbide ↗
Oil AlertStd ↗
Priming time110 sec @ 16.4 ft. ↗
Pump TypeCentrifugal, Self-priming ↗
Residential Warranty24 months ↗
Run Time @ Max Discharge1.7 hr ↗
Solids handlingN/A ↗
Strainer Part #78325-YG3-000 ↗
Suction head lift25 ft. ↗
Suction port diameter2" NPT ↗
Total head lift105 ft. ↗
VoluteRigid Mounted Cast Iron ↗

Every figure is traced to the manufacturer’s published data. ↗ opens the source.

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