Metaris ML51 Series Interchange Gear Pumps

ML51 Series Bearing Style Gear Pump

Genuine Metaris ML51 pumps & motors have a combination 2/4 bolt mounting flange & bi-rotational construction, giving you the option of installing as a pump or mot or. The ML51’s large diameter dual porting (side & rear) will lower your inventory requirements and provide you with a popular and versatile product offering. The Genuine Metaris ML51 series are perfect alternatives to Muncie’s® PL series pumps.

  • Suitable for a variety of applications
  • Multiple displacements and options available
  • Heavy Duty Roller Bearing Design
  • Pressure Balanced Wear Plates
  • Bi-rotational Construction
  • Optional Adjustable Relief Valve
  • Alternatives for Muncie® gear products

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Metaris Aftermarket ML51 Series Hydraulic Gear Pumps & Motors - Interchange

Designed for High Efficiency Output

  • Heavy Duty Roller Bearing Design
  • Bi-rotational construction
  • 4 different gear sizes available
  • Pressure Balanced Wear Plates
  • Pressures up to 3000 psi
  • Hi-flow body design for increased flow and performance
  • Optional Adjustable Relief Valve
  • Speeds up to 2400 rpm
  • Dual porting - side & rear, NPT or ORB
  • High Strength Steel Gear & Shaft Sets
  • Interchange with similar Muncie® gear pumps

ML51 Pump Specifications

Gear Size Displacement
(in³ / cm³)
Max RPM Max Pressure (Dowelled)
(PSI / bar)
(Lbs / Kgs)
1.75 4.46 / 73.1 2400 3000 / 207 48 / 22
2.00 5.10 / 83.6 2400 2500 / 172 49 / 22
2.25 5.74 / 94.0 2400 2500 / 172 51 / 23
2.50 6.37 / 104.4 2400 2500 / 172 54 / 24

Weights shown are for single unit pumps/motors.

Metaris ML51 Pump Model Code Breakdown

ML51 Series Gear Pump Model Code Breakdown

Cross-referenced parts from the Original Equipment Manufacturer "OEM" are listed for information purposes only. Trademarks identifying these parts for cross-reference are those of each OEM and are the property of their owners and are not used, or authorized for use, by Metaris or Hydraulex Global or its affiliates. Neither Metaris nor Hydraulex Global are affiliated with the Original Equipment Manufacturer "OEM" or licensed or authorized to produce parts for the OEM.

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