The APS51GR5 diaphragm pump is used commonly on sprayers in the lawn and landscape and pest control industries. Perfectly tooled to handle multiple applications, the pump comes with a maximum pressure capacity of 350 PSI and an upper flow limit of 15 GPM. Perform an easy swap out on your system by purchasing this pump already coupled to Honda GX160 engine. 

Three diaphragm pump with gear reduction for gas engines with 3/4" shaft. Includes pressure regulator with manual dump lever. The APS Series are constructed of anodized aluminum for maximum pressure, while maintaining resistance to most agricultural chemicals.

Honda's GX series engines are legendary for superior reliability and performance. And there's no doubt about it: the GX160 lives up to the legend. Lower noise levels, lower vibration, and lower emissions without sacrificing power output or performance.

APS51GR5:

• Max flow: 14.5 gpm
• Max pressure: 580 psi
• Includes 1204/680 control unit and 5005/216 gearbox with 3/4" hollow shaft for mounting on 5 to 6.5 hp gas engines
• Port sizes: 1-1/4" HB inlet, (2) 1/2" HB outlet, 3/4" HB bypass
• Pump shaft rotation: CW and CCW
• Diaphragms: 3, semi-hydraulic, Buna standard Desmopan® and Viton® available
• Housing: Anodized aluminum
• Max fluid temperature: 140°F
• Honda GX160 Recoil Start Engine:
• Engine type: Air-cooled 4-stroke OHV
• Starting sytem: Recoil starter
• Shaft: 3/4" solid keyed
• Bore x stroke: 68 x 45 mm
• Displacement: 163 cm3
• Net power output: 4.8 HP (3.6 kW) @ 3600 rpm 
• Net torque: 7.6 lb-ft (10.3 Nm) @ 2500 rpm
• PTO shaft rotation: Counterclockwise from PTO shaft side
• Compression ratio: 9.0 : 1
• Lamp/Charge coil options: 25W, 50W / 1A, 3A, 7A
• Carburetor: Butterfly
• Ignition system: Transistorized magneto
• Lubrication system: Splash
• Governor system: Centrifugal mechanical
• Air cleaner: Dual element
• Oil capacity: 0.61 US qt. (0.58 L)
• Fuel tank capacity: 3.3 US qts (3.1 liters)
• Fuel: Unleaded 86 octane or higher
• Dry weight 33 lbs (15.1 kg)
• Dimensions: 12.2 in long x 14.3 in wide x 13.6 in high (312 x 362 x 346 mm)
• Warranty: 3 year commercial warranty (limited to manufacturer defects)