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Premium Engine Parts for Excavators & Heavy Machinery

The engine is the heart of every machine. It generates power and drives productivity. It also determines fuel efficiency, long term reliability, and daily operating costs. At IMARA Engineering Supplies, we provide a comprehensive range of high quality engine parts for excavators and heavy machinery.

Our engine components are manufactured to strict OEM standards. They are designed to work in the toughest environments. This helps fleet managers reduce on unplanned downtime and keeps essential equipment running smoothly by reducing engine wear.

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186 products

Fuel Pump 570-6292 5706292 for CAT C4.4, C3.3B Engine

Fuel Pump 570-6292 5706292 for CAT C4.4, C3.3B, C3.4, C4.2, C2.2 Engine

Regular price $1,253.00
Sale price $1,253.00 Regular price $537.00
Cooling Fan Blade 490B-41100 for 490BPG Forklift Engine

Cooling Fan Blade 490B-41100 490B41100 for 490BPG Forklift Engine

Regular price $126.00
Sale price $126.00 Regular price $50.00
Water Pump 2W1225 for Caterpillar CAT Excavator E3208 3208T

Radiators & Coolers

Water Pump 2W1225 for Caterpillar CAT Excavator E3208 3208T Engine

Regular price $238.00
Sale price $238.00 Regular price
Fuel Injection Pump 3965402 0470006005 for Cummins Engine

Fuel Injection Pump 3965402 0470006005 for Cummins Engine 4BT, 6BT, 6CT, K19, K38, K50, QSM11, NTA855

Regular price $5,908.00
Sale price $5,908.00 Regular price
Engine Thermostat 8976020483 for Isuzu 6HK1 4JH1 Excavator engine

Engine Thermostat 8976020483 for Isuzu 6HK1 4JH1 – Cooling System Component

Regular price $81.00
Sale price $81.00 Regular price
Water pump 4W7589 7C4508 For CAT E325B Excavator 3116 Engine

Water Pump 4W7589 7C4508 for Caterpillar E325B Excavator – 3116 3116B Engines

Regular price $242.00
Sale price $242.00 Regular price $338.00
Roller Bearing 706-73-40890 for Komatsu D155A-6 WA380-6

Roller Bearing 706-73-40890 for KOMATSU D155A-6, WA380-6

Regular price $175.00
Sale price $175.00 Regular price
Injection Pump RE506965 for John Deere 6420 Tractors

Injection Pump RE506965 for John Deere 6420, 6615, 7405, 7320, 7420, 7430 - Tractor

Regular price $3,178.00
Sale price $3,178.00 Regular price $1,531.00
Cylinder Head 7E4213 for Cat IT8F Loader

Cylinder Head 7E4213 for Cat IT8F Loader

Regular price $0.00
Sale price $0.00 Regular price
Common Rail Injector 6218-11-3101- Komatsu PC600-8 Excavator

Common Rail Injector 6218-11-3101 for Komatsu PC600-8 PC650-8 PC700LC-8 Excavators

Regular price $378.00
Sale price $378.00 Regular price $378.00
Shaft 240-2636 for CAT 345DL - New with Warranty

Shaft 240-2636 2402636 for Caterpillar 345DL Excavator

Regular price $2,147.00
Sale price $2,147.00 Regular price
Komatsu Gasket 6211-11-5490 for WA380/WA470

Gasket 6211-11-5490 for Komatsu WA380 WA470 - Wheel Loader

Regular price $54.00
Sale price $54.00 Regular price
Komatsu PC400-6 Intake Manifold Gasket 6212-15-5831

Intake Manifold Gasket 6212-15-5831 for Komatsu PC400-6 - Excavator

Regular price $81.00
Sale price $81.00 Regular price
Komatsu Gasket 6156-11-7220 for PC400-7 WA480-5

Gasket 6156-11-7220 for Komatsu PC400-7 WA480-5 WA470-5

Regular price $18.00
Sale price $18.00 Regular price
Exhaust Manifold 7N3486 for Caterpillar 140G and D6H Dozers

Exhaust Manifold 7N3486 for Caterpillar 140G and D6H Dozers

Regular price $681.00
Sale price $681.00 Regular price
Chamber Assy Gaskets | Caterpillar Cat | Imara Engineering Supplies

Chamber Assy 8S3970 with Gaskets for Caterpillar X4 – Fits Cat 3304, 950, D6C

Regular price $446.00
Sale price $446.00 Regular price
Komatsu 6240-41-5040 Rocker Arm Assy - WA600-3 PC1250

Rocker Arm Assy 6240-41-5040 for Komatsu WA600-3 PC1250LC-7

Regular price $171.00
Sale price $171.00 Regular price
Air Valve Rocker Bridge | Bridge Cummins ISZ14

Air Valve Rocker Bridge 5591543 for Cummins

Regular price $27.00
Sale price $27.00 Regular price
Cummins Cylinder Head | Engine | Imara Engineering Supplies

Cummins QSX15 ISX15 Cylinder Head 5413782 4331387 4962732

Regular price $4,297.00
Sale price $4,297.00 Regular price

Collection: Engine Parts

Why Engine Quality Matters for Your Fleet

Modern internal combustion engines are complex systems made up of precision-engineered components. Each part must work in perfect balance with the others. When one component suffers from wear and tear, it places additional stress on the entire system, leading to secondary failures and increased oil costs.

Engine-related breakdowns are among the most costly issues for fleet operators. Poor-quality components can lead to overheating, catastrophic power loss, and excessive oil consumption. IMARA Engineering Supplies supports the construction, mining, and earthmoving sectors with quality engine parts built for demanding workloads and high mileage applications.

Comprehensive Engine Parts Component Guide

Maintaining peak engine performance requires the correct replacement parts for each specific application. We supply a full range of high-performance engine components for all major equipment makes and models, ensuring your machinery stays in operation.

1. Complete Engine Assemblies

Engine assemblies provide a complete replacement solution for worn or damaged units. Aftermarket engine parts are crafted to bring back the original performance of the machine, all while greatly minimizing installation time and labor expenses. Our Engine Assemblies are ideal for major rebuilds and fleet standard programs.

2. Cylinder Heads

Cylinder heads manage airflow, combustion sealing, and exhaust gases. They also assist with critical heat dissipation and compression control. We supply Cylinder Heads that are pressure-tested and engineered for consistent performance under high operating temperatures to prevent the engine from burning oil.

3. Cylinder Liners

Cylinder liners protect the engine block from internal wear and provide a controlled surface for piston movement. These internal components are essential for protecting cylinder walls in high-hour engines and overhaul applications. Our Cylinder Liners are manufactured to precise tolerances for an extended service life.

4. Pistons and Piston Rings

Pistons and rings convert combustion pressure into mechanical motion. They must withstand extreme heat within the combustion chamber while maintaining tight compression and oil control. The piston rings we supply are built from high-strength alloys to support efficient combustion and prevent excessive oil usage.

5. Engine Gasket Kits

Gaskets seal critical joints within the engine to prevent engine oil, coolant, and compression leaks. Even a minor gasket failure can result in significant engine damage. Our Gasket Kits include complete, model-specific sets for accurate fitment and reliable sealing across all engine interfaces.

6. Crankshafts

Crankshafts convert vertical piston movement into rotational power. They operate under constant load and high-frequency vibration. We supply Crankshafts that are precision-machined and rigorously tested for durability in heavy-duty mining and construction applications.

7. Camshafts

Camshafts control valve timing and directly influence engine efficiency and power output. Incorrect timing leads to poor combustion and performance loss. Our Camshafts are engineered to maintain accurate valve operation across all engine speeds and conditions.

8. Oil Pumps

Oil pumps circulate lubricant throughout the engine to reduce friction and remove heat. The pumps we supply are designed to maintain stable oil pressure even in the most demanding operating conditions. Drivers should always monitor the oil pressure gauge for any sudden fluctuations.

9. Water Pumps

Water pumps circulate coolant to regulate engine temperature. Efficient cooling prevents overheating and protects expensive internal components. Our Water Pumps provide consistent coolant flow for long term thermal stability and engine protection.

10. Alternators

Alternators supply electrical power while charging the battery during machine operation. A reliable electrical output supports modern sensors and onboard diagnostic systems. We supply Alternators built for consistent charging performance and long term durability.

11. Starter Motors

Starter motors initiate engine operation by turning the crankshaft during startup. Reliable starting reduces strain on the battery and the wider electrical system. For machines requiring spark ignition, we also provide premium spark plugs to ensure reliable ignition in the combustion chamber.

12. Engine Accessories

Engine accessories support overall engine operation and system efficiency. These components assist with temperature regulation and power transmission. Our engine parts range includes:

  • Thermostats – Regulating coolant flow to maintain stable engine temperatures.
  • Relief Valves – Vital relief valves for maintaining safe pressure levels in the oil pan and lubrication system.
  • Filters – High-grade oil filter options to remove contaminants and reduce engine wear.

Maximizing the Life of Your Engine

Quality parts are only one part of engine longevity; proper maintenance is equally important. To maximize the service life of your equipment, we recommend the following practices:

  • Maintain clean lubrication through regular engine oil and oil filter changes.
  • Monitor the oil pressure gauge and cooling system for early signs of fatigue.
  • Address power loss or excessive oil consumption symptoms immediately.
  • Replace related components together to maintain internal engine balance and reduce wear and tear.

Supporting Australia’s Construction and Mining Sectors

IMARA Engineering Supplies understands the unique demands of Australian operating conditions. From remote mining operations to urban construction sites, our high quality parts are tested in real-world environments. We provide expert technical support and OEM cross-referencing to ensure correct part selection and first-time fitment.

Global Logistics and Fast Delivery

Engine downtime impacts your bottom line. We have optimized our supply chain for fast dispatch across Australia and international markets. Our logistics partners are experienced in handling Machine Off Road (MOR) situations, helping return your equipment to service quickly.

Frequently Asked Questions

Powering Your Projects with Premium Parts.
Your Trusted Source for Heavy Equipment Solutions.
Engineered for Excellence, Delivered on Time.