H51 Series

Product Details

Our pumps are designed to perform across diverse applications, offering high efficiency and dependable operation in even the most extreme conditions. Built to last, they minimize downtime and maintenance – maximizing productivity where it counts.

Common Applications:

  • Snow and ice control
  • Utility line trucks
  • Refuse equipment
  • Low boys

KEY FEATURES / BENEFITS:

  • Replaces Parker/Commerical® P51 Series
  • 19.4 – 27.8 GPM @ 1000 RPM
  • Pressure 2500 PSI – 3000 PSI maximum
  • Speeds to 2400 RPM
  • Bi-rotational

SPECIFICATIONS:

  • Displacement 4.49 – 6.43 (cubic in/rev.)
  • Maximum Operating Pressure 3000 PSI
  • Input Shaft: 7/8″ – 13 T
  • S.A.E. Mounting Flange “B”
Part NumberFlangeShaftGPM@1000RPMGear SizeCu. In.Max Pressure (PSI)Rear PortsSide Ports
H5B6B14SF10DILB2x4 B7/8-13 Tooth19.41-3/4"4.4630001-1/4" ORB1-1/4" ORB
H5B6B14SF20DILB2x4 B7/8-13 Tooth19.41-3/4"4.4630001-1/4" NPT1-1/4" NPT
H5B6B14SG20DILB2x4 B7/8-13 Tooth22.22"5.1025001-1/4" NPT1-1/4" NPT
H5B6B14SG25DILB2x4 B7/8-13 Tooth22.22"5.1025001-1/4" ORB1-1/4" ORB
H5B6B14SH20DILB2x4 B7/8-13 Tooth252-1/4"5.7325001-1/4" NPT1-1/2" NPT
H5B6B14SI10DILB2x4 B7/8-13 Tooth27.82-1/2"6.37525001-1/4" ORBBlank
H5B6B14SI20DILB2x4 B7/8-13 Tooth27.82-1/2"6.37525001-1/4" NPT1-1/2" NPT
H5B2B14SI22DI2 B7/8-13 Tooth27.82-1/2"6.3752500Blank1-1/4" NPT
H5B4B14SI22DI4 B7/8-13 Tooth27.82-1/2"6.3752500Blank1-1/4" NPT
H5B4B20KG20DILB4 B1-1/4" Keyed22.22"5.1025001-1/4" NPTBlank
H5B4B20KI23DILB4 B1-1/4" Keyed27.82-1/2"6.37525001-1/4" NPT1-1/4" NPT
H5L6B14SFRV30DI2x4 B7/8-13 Tooth19.41-3/4"4.4630001" NPT1-1/4" NPT
H5L6B14SFSRV30DI2x4 B7/8-13 Tooth19.41-3/4"4.4630001" ORB1-1/4" ORB
H5L6B14SIRV25DI2x4 B7/8-13 Tooth27.82-1/2"6.37525001" NPT1-1/2" NPT
H5L6B14SISRV25DI2x4 B7/8-13 Tooth27.82-1/2"6.37525001" ORB1-1/2" ORB
SeriesRotationShaft End CoverShaftGear WidthSpecial Features
P – Pumps2 – 20R – CW2A – 2 Bolt “A”10S – 5/8-9 SplineA – 1/2″S – Special
M – Motors3 – 30L – CCW2B – 2 Bolt “B”12K – 3/4 KeyedB – 3/4″D – Doweled 31, 51, 76
5 – 50B – Bi-Rot2C – 2 Bolt “C”14S – 7/8-13 SplineC – 1″I – Integral Gear Set
7 – 754B – 4 Bolt “B”14K – 7/8 KeyedD – 1-1/4″LB – Little Buddy Pec
35 – 3504C – 4 Bolt “C”14KT – 7/8 Keyed WthdE – 1-1/2″
55 – 51514D – 4 Bolt “D”16S – 1″-15 SplineF – 1-3/4″
315 – 3156B – 2/4 Bolt “B”16K – 1″ KeyedG – 2.0″
365 – 3656R – 6 Bolt Round16S6 – 1″-6 SplineH – 2-1/4″
PD – Pad Mount18K – 1-1/8 KeyedI – 2-1/2″
20S – 1-1/4 SplineJ – 2-3/4″
20K – KeyedK – 3.0″