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Oil Pump Assembly in Diesel Engines

In any internal combustion engine, the oil pump assembly is a vital safety and performance part. These units maintain proper oil pressure, ensuring that lubricating oil reaches all moving parts in heavy machinery.

Without steady lubrication, engine parts like pistons and bearings face metal-on-metal friction. At IMARA Engineering Supplies, we offer high-performance oil pumps built for the heavy-duty combustion engine used in mining and construction. Our pumps protect the engine block and cylinder head from heat, preventing sudden engine failure.

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25 products

Transmission Oil Pump 6T3651 7G4856 1233472 for Caterpillar CAT 950F 960F 966C 966R Wheel Loader 3116 3306 Engine

Transmission Oil Pump 6T3651 for CAT 950F 960F 966C 966R – Drivetrain Lubrication System

Regular price $501.00
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Oil Pump 331-8905 for CAT E330C E336D C9 Lubrication System

Oil Pump 331-8905 for CAT E330C E336D – C9 Engine Lubrication System

Regular price $287.00
Sale price $287.00 Regular price $573.00
Oil Pump ME221756 ME222053 Mitsubishi 4M50, SY215-10 HD820V

Oil Pump ME221756 ME222053 for Mitsubishi 4M50 4M50T 4M51 Engines – SY215-10 HD820V Excavator

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Oil Pump T410626 for Perkins 1106D-E66TA Engine, Lubrication

Oil Pump T410626 for Perkins 1106D-E66TA Engine – Lubrication System

Regular price $201.00
Sale price $201.00 Regular price
Oil Pump 02/201050 for JCB 3CX / 4CX – Backhoe Loader

Oil Pump 02/201050 for JCB 3CX / 4CX – Backhoe Loader Engine Component

Regular price $142.00
Sale price $142.00 Regular price
Hydraulic Transmission Pilot Gear Oil Pump 4693315 for Hitachi ZX50 ZX55 ZX60 – Excavator

Hydraulic Transmission Pilot Gear Oil Pump 4693315 for Hitachi ZX50 ZX55 ZX60 – Excavator

Regular price $680.00
Sale price $680.00 Regular price

Collection: Oil Pumps

High Pressure Lubrication for Maximum Engine Protection

Heavy-duty engines face more stress than those running on gasoline. Using diesel fuel creates intense pressure that strains piston rings and bearings. To handle this, a high quality pump must provide high pressure lubrication to keep the engine operating safely and boost overall engine performance.

Reducing Friction and Protecting Components

Proper oil pressure creates a thin film over parts. Being properly lubricated significantly reduces friction, which helps improve fuel economy by letting the engine run with less resistance.

Heat Dissipation and Temperature Control

Engine oil also acts as a coolant. By moving fluid from the oil pan through the engine block, the pump pulls heat away. This stops parts from warping and lowers general wear and tear.

Supporting Accurate Engine Timing and Combustion

Stable pressure ensures the combustion chamber stays balanced. While diesel engines don’t use spark plugs, they rely on perfect timing. Good lubrication keeps these internal combustion cycles smooth.

The Connection Between Oil Pumps and the Fuel Delivery System

Lubrication and fuel systems work together. Even the best fuel injectors can't fix the damage caused by a worn oil pump.

Proper lubrication supports:

  • Smooth fuel injector operation.
  • Better fuel efficiency by cutting internal drag.
  • Balanced combustion engine cycles.

If you notice your equipment using too much fuel, your high-performance oil pumps' efficiency might be the hidden culprit.

Engineered for Heavy-Duty Equipment Performance

IMARA pumps are built for tough machines like excavators and dozers. While some fuels are refined from crude oil for cars, industrial engines need much stronger parts. Our oil pump assembly options are compatible with Caterpillar, Cummins, and Komatsu.

Every pump is tested for:

  • Steady high-pressure lubrication.
  • Resistance to wear and tear.
  • Protection for all internal engine parts.

Technical Support and Precision Fitment

Getting the right fit is key. At IMARA Engineering Supplies, we use your engine serial numbers to find the perfect match for your cylinder head and block, helping you avoid costly engine failure.

Frequently Asked Questions

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