Aftermarket Hydraulic Pump Assembly Made To Fit John Deere 300 50...
Hydraulic Pump for John Deere 1550, 1640, 1750, 1830 AR39695 Tractors 1401-1203

Hydraulic Pump for John Deere 1550, 1640, 1750, 1830 AR39695 Tractors 1401-1203

Item #: 1401-1203

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Restore full power to your hydraulic system with a new hydraulic pump
  • Precision engineering ensures optimal generation of hydraulic pressure
  • Restores like-new performance to your hydraulic system
  • Easy installation with exact-fit specifications that match original pump
  • Factory-direct pricing significantly beats OEM hydraulic pumps
  • Backed by a 1-year warranty to ensure customer satisfaction
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

Highly Engineered Hydraulic Pumps
DB Electrical hydraulic pumps effectively convert mechanical power into hydraulic energy. A highly engineered design performs two actions. The mechanical function creates a vacuum at the pump inlet, which forces liquid to flow from the reservoir to the inlet line of the pump. Next, the liquid is delivered to the pump outlet and into the hydraulic system. This action is what gives you the power to run the hydraulic system. Our pump uses precision engineering to optimize the power generated through the hydraulic system. This hydraulic pump will restore like-new performance to your hydraulic system.

With a hydraulic pump from DB Electrical, you will restore smooth operation of implements on tractors and industrial machinery. Our pumps will generate pressure equal to the original pump that came with your machinery, enabling the hydraulic system to achieve full power and optimal operating efficiency.

Exact fit and easy installation
Our hydraulic pumps match OEM specifications for listed applications. That means your new hydraulic pump will fit exactly as the old one that’s being replaced. Exact fit specifications make installation an easy process.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your hydraulic pump meets your expectations.

Item Number: 1401-1203

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Description : Hydraulic Pump
Drive Type : Splined
Spline : 14
Relief Valve : Not Included
Rating : 9.3 (@1000 RPM)
Max PSI : 2700
Volume CC : 40cc
Pump Type : Single
Notes : The system needs be flushed and replaced with clean, new fluid
1 1/16" Left inlet, 7/8" Top Inlet, 1 5/8" Right Inlet, 7/8" Right Discharge. If replacing AR39695 or AR90459, you may also need AT49331, R39741, P47908, U13639 AND F3171R from John Deere.
Item ConditionAftermarket Part

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
John DeereTractor1550
John DeereTractor1640
John DeereTractor1750
John DeereTractor1830
John DeereTractor1840
John DeereTractor1850
John DeereTractor1950
John DeereTractor2030
John DeereTractor2040
John DeereTractor2040S
John DeereTractor2130
John DeereTractor2140
John DeereTractor2155
John DeereTractor2250
John DeereTractor2350
John DeereTractor2355
John DeereTractor2440
John DeereTractor2450
John DeereTractor2510
John DeereTractor2520
John DeereTractor2550
John DeereTractor2555
John DeereTractor2630
John DeereTractor2640
John DeereTractor2650
John DeereTractor2650N
John DeereTractor2750
John DeereTractor2755
John DeereTractor2840
John DeereTractor2850
John DeereTractor2855N
John DeereTractor2940
John DeereTractor2950
John DeereTractor2955
John DeereTractor300 Indust/Const
John DeereTractor3010
John DeereTractor3020
John DeereTractor3030
John DeereTractor3040
John DeereTractor3050
John DeereTractor3055
John DeereTractor3130
John DeereTractor3140
John DeereTractor3150
John DeereTractor3155
John DeereTractor3255
John DeereTractor3350
John DeereTractor3640
John DeereTractor3640S
John DeereTractor3650
John DeereTractor4010
John DeereTractor4030
John DeereTractor440 Skidder
John DeereTractor440A Skidder
John DeereTractor440B Skidder
John DeereTractor500 Indust/Const
John DeereTractor5010
John DeereTractor600 Indust/Const
John DeereTractor9950 Cotton Picker
John DeereTractor9960 Cotton Picker
John DeereTractor9965 Cotton Picker
John DeereTractor9970 Cotton Picker

Replaces These Part Numbers

John DeereAR39695, AR90459, AR97872

Frequently Asked Questions

Q: What are the most common causes of Hydraulic Pump failure?
A:

  1. Long term use and more hours of use produce more wear. When seals, bearings and critical machined surfaces become worn out, it causes the fluid to blow by and not build pressure within the pump.
  2. Contamination: Contaminants like rust, dust and abrasives are the most common cause of failure. They cause internal parts to wear until the tolerances are gone. Routinely change the filter to lessen the adverse impact of contaminants. In fact, changing the filter is sometimes more important than changing the oil.
  3. Cavitation: When oil levels get low. Cavitation occurs, which is starvation of oil coming into the pump. The increased vacuum on the incoming oil causes dissolved gases to become bubbles. These bubbles in the gases gradually eat away the metal surfaces on the pressure side.
  4. Aeration: This problem occurs when air is sucked in from a leak in the system. Similar to cavitation, aeration is when the air bubbles move into the pressure side. They collapse and erode the metal in the same way cavitation bubbles do.
  5. Overheating: Here is the most overlooked cause for pump problems. Your hydraulic system produces heat, and the oil absorbs it. Oil also radiates heat through the metal surfaces. If this temperature is over 180º F, problems start to happen. Seals and hoses harden and start to leak while losing flexibility and crack. The oil gets too thin to lubricate properly, causing metal parts to overheat, become scored or gall.
Q: What oil should I use?
A: The appropriate oil for your hydraulic pump depends on the specific requirements outlined in the manufacturer's recommendations. Generally, hydraulic systems commonly use hydraulic oils with properties such as:
  1. Viscosity: Choose an oil with the viscosity recommended by the pump manufacturer for your operating temperature range. Viscosity directly impacts the fluid's ability to flow and lubricate effectively.
  2. Additives: Consider hydraulic oils with additives to enhance performance, such as anti-wear, anti-foam, and anti-corrosion additives. The inclusion of these additives can improve the oil's durability and protect system components.
  3. ISO Classification: Hydraulic oils are classified by the International Standards Organization (ISO) based on their viscosity. Select an oil with the appropriate ISO viscosity grade specified in the equipment manual.
Always consult the manufacturer's guidelines and the equipment manual to ensure that you are using the correct hydraulic oil for your specific hydraulic pump model and operating conditions. Using the recommended oil helps maintain optimal performance, prevent damage, and extend the lifespan of the hydraulic system.

Q: What is the best preventative maintenance for getting the most years of service?
A: Just keep the systems tank/reservoir topped off with the proper fluid and serviced during the intervals recommended by the manufacturer. Hydraulic systems are pretty low maintenance. Some systems do not require changing the fluid at every service interval. Sometimes you just change the filter at service intervals. Sometimes it calls for a complete system flush and refilter. It just depends on the hours of usage or years that pump has been in use, along with the manufacturer’s maintenance service schedule.

Customer Reviews

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