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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 can rub against each other. This causes metal-on-metal friction.

We provide high-performance oil pumps. They are designed for heavy-duty combustion engines used in mining and construction. Our pumps protect the engine block and cylinder head from heat, preventing sudden engine failure.

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58 products

Water Pump 3522138 2364420 352-2138 236-4420

Water Pump 3522138 2364420 352-2138 236-4420 – Engine Cooling System

Regular price €182,95
Sale price €182,95 Regular price
U5MW0208 U5MW0201 U5MW0197 water pump for Perkins 1104D-44 1104D-44T 1104D-44TA engine

Water Pump U5MW0208 for Perkins 1104D-44 / 44T / 44TA – Engine Cooling System

Regular price €170,95
Sale price €170,95 Regular price
Water Pump 41312784 for Massey Ferguson 135, 240, 350

Water Pump 41312784 for Massey Ferguson 135, 240, 350 – Heavy Machinery

Regular price €109,95
Sale price €109,95 Regular price
Replacement AR76280 AR85250 AR97708 RE509068 Water Pump for John Deere 2.9L-3029 3.9L-4039 4.5L-4045 6.8L-6068 300 4239 3179

Water Pump AR76280 for John Deere 2.9L–6.8L Engines – Engine Cooling System

Regular price €224,95
Sale price €224,95 Regular price
Water Pump RE545572 for John Deere 244J

Water Pump RE545572 for John Deere 244J, 313, 320D, 4520 – Engine Cooling System

Regular price €130,95
Sale price €130,95 Regular price
Water Pump RE530194 RE523828 SE51228 for John Deere

Water Pump RE530194 for John Deere – Engine Cooling System

Regular price €152,95
Sale price €152,95 Regular price
Water Pump 612600060307 612600061258 for CDM856 LG855B

Water Pump 612600060307 612600061258 SP101885 for CDM856 LG855B LG843 LG6065 LG6090 – Cooling System

Regular price €109,95
Sale price €109,95 Regular price
Water Pump 6124-61-1004 for Komatsu D155A-1 Bulldozer

Water Pump 6124-61-1004 for Komatsu D155A-1 Bulldozer – Cooling System

Regular price €426,95
Sale price €426,95 Regular price
Water Pump VOE21247955 04299412 for Volvo EC210 EC240 EC290

Engine Water Pump VOE21247955 VOE21404502 04299412 for Volvo EC210 EC240 EC290 – Cooling System

Regular price €63,95
Sale price €63,95 Regular price
Water Pump 65.06500-6139C for Doosan Daewoo DH220-3 DH300-7

Engine Water Pump 65.06500-6139C for Doosan Daewoo DH220-3 DH300-7 D1146 D1146T

Regular price €213,95
Sale price €213,95 Regular price
Water Pump 172-7776 2P0662 for Caterpillar 3306T Engine

Water Pump 172-7776 2P0662 for Caterpillar 3306T Engine

Regular price €176,95
Sale price €176,95 Regular price
Water Pump VOE-21468471 21468471 for Volvo D13F EC380 EC480

Water Pump VOE-21468471 21468471 for Volvo D13F EC380 EC480 EC700 Excavators

Regular price €109,95
Sale price €109,95 Regular price
Water Pump 172-7767 for Caterpillar 3304 3306, 2W8001, E330B

Water Pump 172-7767 for Caterpillar 3304 3306 Engine – Cooling Pump 2W8001 for Excavator E330B

Regular price €152,95
Sale price €152,95 Regular price
Water Pump MM409302 MM409303 for Mitsubishi Engine K3B K3C

Water Pump MM409302 MM409303 MM433424 for Mitsubishi Engine K3B K3C K4C K4D S3L2 S4L2 – Mini Excavator

Regular price €118,95
Sale price €118,95 Regular price
Water Pump 1727767 2W8001 for Caterpillar 3306 Engine

Water Pump 1727767 2W8001 for Caterpillar 3306 Engine – Excavator Engine Cooling

Regular price €395,95
Sale price €395,95 Regular price
Engine Water Pump 123900-42101 for Komatsu 4D106 / S4D106

Engine Water Pump 123900-42101 for Komatsu 4D106 / S4D106 – Excavator

Regular price €219,95
Sale price €219,95 Regular price
Water Pump ME037709 for Mitsubishi Forklift Engine 6D14 6D15

Water Pump ME037709 for Mitsubishi Forklift Engine 6D14 6D15 – Industrial Equipment

Regular price €243,95
Sale price €243,95 Regular price
Water pump 212-8177 416-0610 for Caterpillar
Water Pump Seal 336-2212 for Caterpillar C15 C18

Water Pump Seal 336-2212 for Caterpillar C15 C18

Regular price €91,95
Sale price €91,95 Regular price

Collection: Water 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 might be losing efficiency.

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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