A Hydraulex Company Hydraulex Group

Who We Are

Hydraulex is a family of Attica Hydraulic Exchange, Flint Hydrostatics, Hydraulic Repair and Design and Metaris Hydraulics. With our combined expertise, capabilities, and inventories - we have the largest offering in the industry of remanufactured, aftermarket, and OEM hydraulic components and parts.
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What We Do

We provide hydraulic components & repair services for industrial applications like paper mills, saw mills, steel mills, recycling plants, oil & gas applications and mobile applications, including construction, utility, mining, agricultural and marine equipment. This includes hydraulic pumps, motors, valves, servo/prop valves, PTOs, cylinders & parts.

New Units

Reman Units

New Parts

Repair Services

Our Mission

From supplying new components, to repairs, to remanufacturing, our one-stop shop motto has become a truly accurate description that reflects our passion and mission for the hydraulics industry and our customers.

  • Create a one-stop shop of quality products for all your hydraulic needs
  • Offer a vast product offering with widespread manufacturer support and on-the-shelf availability
  • Provide the fastest possible turnaround and delivery - serving your immediate hydraulic needs
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  • Call us: 800.962.2703

Metaris MH30/31 Series Interchange Gear Pumps

MH30/31 Series Bearing Style Gear Pump

Genuine Metaris MH30/31 series bearing pumps & motors are available in 7 different gear sizes with a variety of mounting flanges, shaft configurations and porting options. Multi-section units, piggyback designs, dowelled assemblies & flow dividers are all also available. With ductile iron housings, these pumps offer pressure ratings as high as 3000 psi for the most demanding of applications. The MH series are perfect alternatives to other gear pump products from Commercial®/Parker® and Muncie®.

  • Suitable for a variety of applications
  • Multiple displacements and options available
  • Heavy Duty Roller Bearing Design
  • Pressure Balanced Wear Plates
  • Multiple Bearing Carrier Options
  • Variety of Mounting Flange and Shaft Options
  • Alternatives for Commercial®/Parker® and Muncie® gear products

Contact Us for Pricing and Availability

Metaris Aftermarket MH30/31 Series Hydraulic Gear Pumps & Motors - Interchange
Did we miss the 2-day timeframe for your order?
If so, please click here and fill out the form on the page making sure to reference your Sales Order/Purchase Order number and a representative will get right back to you.

Designed for High Efficiency Output

  • Heavy Duty Roller Bearing Design
  • Dowelled and Rugged Cast Iron Construction
  • 7 different gear sizes available
  • Pressure Balanced Wear Plates
  • Pressures up to 3000 psi
  • Speeds up to 2400 rpm
  • Multiple porting options
  • High Strength Steel Gear & Shaft Sets
  • Interchange with similar Commercial®/Parker® and Muncie® gear pumps

MH30/31 Pump Specifications

Gear Size Displacement
(in³ / cm³)		 Max RPM Max Pressure (Dowelled)
(PSI / bar)		 Weight
(Lbs / Kgs)
.05 .99 / 16.1 2400 3000 / 207 30 / 14
.07 1.48 / 24.2 2400 3000 / 207 31 / 14
1.00 1.97 / 32.3 2400 3000 / 207 32 / 15
1.25 2.46 / 40.4 2400 3000 / 207 33 / 15
1.50 2.96 / 48.4 2400 3000 / 207 34 / 15
1.75 3.45 / 56.5 2400 2500 / 172 35 / 16
2.00 3.94 / 64.6 2400 2500 / 172 36 / 16

Weights shown are for single unit pumps/motors.

Metaris MH30/31 Pump Model Code Breakdown

MH30/31 Series Gear Pump Model Code Breakdown

Our New Quickship 2-Day Guarantee on Gear Pumps

Order up to five of any of our qualifying gear products and they’ll ship in 2-days or we’ll give you a 10% rebate–that’s our promise to you. Should we miss that 2-day timeframe and you have a claim to address or file, please don't hesitate to contact us through our contact form right here on our website and be sure to include your Sales Order/Purchase Order # as a reference. Parts and/or unit availability subject to change without notice.


Terms and conditions: Current customers or new customers who purchase qualifying in-stock gear pump products may be eligible for this program.
Rebates vary in amount and are based on the purchase order/sales order invoice. Customers will receive 10% off their next order with a maximum value calculated against the purchase order/sales order invoice that the qualifying gear pump product(s) were on.
This program is valid for purchases made on or after 9/9/2016.
Unless otherwise expressly stated in writing, this program is not combinable with any other discounts or special pricing provided by or made available by Hydraulex Global.
Hydraulex Global/Metaris may amend or cancel this program or general program conditions at any time. Void where prohibited or restricted by law.

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.

Have a question or want to request a quote?

Please don't hesitate to contact us if you have a question, want to request a quote, or are looking for pricing and availability. We're here to help.

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Contact Us

Phone: 1.800.962.2703
Fax: 601.469.2120
Email: sales@metarisusa.com

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