Hitachi Automotive OUP0020 | Engine Oil Pump

Part Number
OUP0020
OIL PUMP

Fits: 87-94 Nissan D21, 87-95 Nissan Pathfinder, 95 Nissan Pickup

$100.99
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Engine Oil Pump

SPECIFICATIONS:
  • California Proposition 65: WARNING Cancer. ADVERTENCIA Cncer. AVERTISSEMENT Cancer. www.P65Warnings.ca.gov
  • Manufacturer: Hitachi

This item may interchange to the following part numbers from other brands. This is provided for reference only and does not guarantee that the part your are buying is identical to the part numbers from the brands listed below. To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.

  • Datsun/Nissan 15010-12G00
  • Datsun/Nissan 15010-12G01
Hitachi's genuine OE oil pumps are a direct replacement for the original Hitachi oil pump being removed. Precision-machined flow channels create optimal flow characteristics for both flow rates and pressure while vane type or gear type rotors are used to meet specific application demands. These oil pumps are made of lightweight, cast aluminum for better heat dissipation and longevity. Choose Hitachi OE oil pumps to protect engine components from frictional wear and overheating! Designed to meet the exact needs of each specific vehicle, Hitachi oil pumps are the premium choice.
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.
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.
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Compatible Vehicles

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Make
Model
Engine
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