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2018 Yamaha YP20GY (2") Water Pump


YP20GY (2") Water Pump



A 4-stroke, 123cc Overhead Valve engine is the heart of the YP20GY. This mid-range pump can move up to 600 litres/minute through a 2-inch port. It's engineered for long life with features like auto shut-off, low oil warning, and more.

Rugged, Mid-Range Pumping Power: Featuring a self-priming centrifugal pump powered by Yamaha's tough, 4-stroke, 123cc overhead valve engine, this bad boy can move up to 600 litres/minute through a hefty two-inch port.

  • Reliable and fuel efficient, Yamaha MZ125 (123cc), air-cooled, OHV, 2-valve, 4-stroke engine (4hp)
  • Auto decompression system reduces engine compression to provide a light recoil starter pull for effortless manual starting.
  • Maintenance-free transistorized controlled electronic ignition (TCI) provides a hot spark for fast, easy starting.
  • Cast iron cylinder liner provides excellent heat dissipation for consistent performance and long engine life.
  • Yamaha's Oil Watch Warning System automatically shuts off the engine when oil level is low and will not re-start until oil is added, preventing costly engine damage and enhancing long-term durability.
  • Large muffler for quiet operation
  • On - off fuel petcock for easy transporting and storage.
  • 4.5 litre fuel tank
  • 50mm / 2" self-priming, centrifugal type pump
  • Maximum capacity is 600 litres per minute (132 Imp. gal / min)
  • Total head is 30m (98.5 ft.), suction head is 7 m (23 ft.)
  • Priming time is 120 seconds at 5 meters (16.4 ft.)
  • Volute style case and impeller are made of cast iron for greater strength and excellent durability.
  • Dependable carbon-ceramic mechanical seals are durable, easy to replace and they reduce abrasion and friction for long pump life.
  • Standard National Pipe Thread (NPT) fittings for fast, easy connection of suction and discharge hoses (suction and discharge hoses available separately from Yamaha Motor Canada Ltd.).
  • Sturdy perimeter tubular steel frame encases all components for extra protection.
  • Easy access pump case drain, easy access oil plug and easy access washable foam air filter element
  • Cleanable spark arrestor
  • EPA Emission Engine Life Rating - The YP20G meets the strictest environmental standards
  • Standard 3-year warranty for both private or commercial use, on all Yamaha water and trash pumps
  • Type: Self-priming, centrifugal
  • Intake & Discharge Port Size: 50mm (2")
  • Maximum Capacity: 600 litres/min (132 Imp. gal/min)
  • Total Head Lift: 30m (98.5 ft)
  • Suction Head Lift: 7m (23 ft)
  • Maximum Discharge Pressure: 3 kg/cm² 42.7 psi
  • Priming Time: 120 sec @ 5m (16.4 ft)
  • Model: MZ125
  • Type: 4-Stroke, OHV, 2-valve, air-cooled single
  • Displacement: 123cc
  • Maximum Horsepower: 4 hp @ 4000 rpm
  • Starting System: Recoil
  • Ignition: TCI
  • Fuel Tank Capacity (L): 4.5 litres
  • Dry Weight: 27 kg (59.5 lb)
  • L x W x H mm (in): 391 x 502 x 454 mm (15.4 x 19.8 x 17.9'')
  • Private Use: 3-year limited
  • Commercial Use: 3-year limited
Every attempt has been made to showcase Canadian versions of our products, but all images, information and specifications may not be exact and are subject to change without notice. Some models may be shown with optional accessories.



Engine Type
4-Stroke, OHV, 2-valve, air-cooled single
Engine Displacement
4 hp @ 4000 rpm


Pump Style
Self-priming, centrifugal
Discharge Capacity
600 L/min (132 Imp. gal./min)
Discharge Port Diameter
50mm (2 in.)
Suction Diameter
50mm (2 in.)
Head Lift
30m (98.5 ft.)
Suction Head Lift
7m (23 ft.)
391 x 502 x 454 mm (15.4 x 19.8 x 17.9 in.)
27 kg (59.5 lb.)

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