My Cart

Bronze gear pump forward reverse

Model Number
Oberdorfer gear pump oil N992-37F30

Oberdorfer N992-37F30

Oil change pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Close coupled to a 115vac motor including a Forward / Off / Reverse switch. Often used at dockside for changing the oil in boats. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life. Also available in a 12vdc version.

Dockside;Quick Oil Change, reversible flow
Engine Room Diesel Fuel Transfer

• Rugged corrosion resistant bronze
• Compact close-coupled design
• Stainless steel shafts
• Durable bronze helical gears provide quiet
• Process lubricated carbon graphite bearings
• O-ring cover seal for maximum leak
• Buna Lip Seal –standard
• 1/3 HP -1725 RPM 115VAC
• 1.15 Service Factor with Capacitor Start

• TENV enclosure, rigid base, durable painted
• Automatic Overload Protection
• Built in switch (Forward - Off - Reverse)
• 8 foot long SJTOW 16-3 power cord with

Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the back pressure in the discharge line. Shaft speed and flow are directly proportional. Recommended pressure limits are 100 psi for water and non-lubricants, 150 psi for oil and lubricants. Maximum shaft speed is 1750 rpm.

A relief valve is necessary in the system if the discharge line contains any throttling devices, such as a shut-off valve, a spray nozzle or other restrictive device. This will return the liquid to the suction side or to the tank. For this purpose a separate relief valve in the pressure line must be used.

Service life will be increase substantially if the liquid pumped is clean and has a lubricity value. These pumps have extremely close tolerances.

More Information
Model Number N992-37F30
part number N992-37F30 Oil change pump
Series N992 Gear Pumps
Max Flow (GPM.) 4
Max Flow GPH 240
TDH Maximum (Ft) 347
TDH Maximum (PSI) 150
Horse Power (HP) 1/3
Horsepower (IE .5, 1, 1.5, 20) .33
Inlet Connection Type FNPT
inlet size Less than 1"
Inlet (In.) 0.38
Outlet Connection Type FNPT
Outlet (In.) 0.38
Wetted Materials 304SS, Bronze
Elastomers / O-ring Buna-Nitrile
Voltage (V) 115
Voltage (Range) 110-120
Phase (Ø) Single (1)
Motor Frequency 60
Motor TEFC
Speed (RPM.) 1725
Self Priming Yes
Suction Lift (FT.) 20
Max Operating Temperature (F) 140
Viscosity SAE 30 oil 352.00 cp 2000.00 ssu
Shaft 304SS
Length (In.) 15.87
Mechanical Seal LIP SEAL
Mechanical Seal Type Single
Motor Bearings Ball
Coupling Y
Other Includes 8 Ft line cord and plug. No relief valve.
Pump Bearing Carbon
Cord Length (Ft.) 8
Duty Intermittent
Drain No
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 35.000000
Warranty (YRS.) 1