Melling M331 | Engine Oil Pump

Part Number
M331
Stock Replacement Oil Pump

Fits: 95-96 Mitsubishi Montero, 97-04 Mitsubishi Montero Sport

Special Price $111.59 Regular Price $123.99
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Estimated Ship Date: 1 Business Day or Less
Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.


BRAND: Melling




FEATURES:


  • Stock Replacement Oil Pump
  • Stock Replacement Oil Pump
  • Oil Pump
  • Replacement Oil Pump, High Volume Oil Pump, High Pressure Oil Pump
  • Engine Oil Pump
  • Mitsubishi Montero 1996-1995, Montero Sport 2004-1997


SPECIFICS:


Drive TypeCrankshaft
Gasket Or Seal IncludedYes
Grade TypeRegular
Height139.51
Height5.49
Housing MaterialAluminum
Mounting Hole Diameter8.88
Mounting Hole Diameter0.34
Mounting Hole Quantity6
Oil Pump Pressure TypeStandard Pressure
Oil Pump TypeRotary
Oil Pump Volume TypeStandard Volume
Pickup Screen Diameter0.77
Pickup Screen Diameter19.72
TitleEngine Oil Pump
Width260.35
Width10.25

Standard Volume And Pressure


DOWNLOADS:





WARRANTY TIME: 12 Months


INTERCHANGE:


  • Elgin: EM-331
  • Topline: OPMI31
  • Enginetech: EP073
  • Rock Products: OP130
  • Safety Auto Parts Corp: N/A
  • ITM Engine Components: 057-1359
  • Melling: M331
  • Mitsubishi: MD184886
  • Mitsubishi: MD308625
  • Sealed Power: 224-43652
  • MAHLE: N/A

APPLICATIONS:


  • 1995-1996 Mitsubishi Montero
  • 1997-2004 Mitsubishi Montero Sport
Customer Questions
Will an engine flush clean my pistons?
No, an engine flush is unlikely to clean the pistons.
How to replace engine pistons?
Replacing engine pistons involves removing the engine from the vehicle, disassembling it, removing the pistons, inspecting the engine components, installing the new pistons, reassembling the engine, and testing it. It's a complex process that should only be attempted by experienced mechanics.
When do engine pistons rings go bad?
Engine piston rings can go bad due to wear and tear, inadequate lubrication, overheating, manufacturing defects, or improper installation. Symptoms of failing piston rings include reduced engine power, increased oil consumption, and blue smoke from the exhaust. Regular maintenance and inspection can help identify potential issues.
Why do engine piston rings fail?
Engine piston rings can fail due to wear and tear, inadequate lubrication, overheating, manufacturing defects, or improper installation. Regular maintenance and inspection of the engine can help identify potential issues. Symptoms of failing piston rings include reduced engine power, increased oil consumption, and blue smoke from the exhaust.
Can you replace engine pistons rings without removing the engine?
Replacing engine piston rings without removing the engine is possible but not recommended due to the extensive disassembly required and the risk of damaging other engine components. A full rebuild or overhaul is generally more efficient and effective.
What is better Mellling vs. GM oil pump?
Both Melling and GM oil pumps are reputable brands and offer quality products. The better choice between the two depends on factors such as the specific application, compatibility, and personal preference.
Are oil pump gears necessary?
Yes, oil pump gears are essential for maintaining proper engine lubrication in an internal combustion engine.
How do oil pumps work?
Oil pumps work by creating pressure to circulate engine oil throughout an internal combustion engine.
Where is the oil pump located?
The oil pump is typically located inside the engine's lower oil pan or sump.
Why do oil pump failures happen?
Oil pump failures can arise from wear, contamination, poor maintenance, and manufacturing defects, causing inadequate lubrication and potential engine damage.
Please, mind that only logged in users can submit questions

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