Skip to content Skip to navigation menu

Your Selected Vehicle

Brands

Show More Show Less

Price

Parts for your 2004 Lexus Is-Radiator

Sort by
Bar's Bugs Windscreen Cleaner 375ml - BB375

Bar's Bugs Windscreen Cleaner 375ml - BB375

$8
Fitment Notes:
See More
Morey's Diesel Injector Cleaner 1L - MDIC

Morey's Diesel Injector Cleaner 1L - MDIC

$45
Fitment Notes:
See More
Morey's Oil Stabiliser 1L - MOS

Morey's Oil Stabiliser 1L - MOS

$35
Fitment Notes:
See More
Rislone High Mileage Compression Repair 500ml - 4447

Rislone High Mileage Compression Repair 500ml - 4447

$38
Fitment Notes:
See More

Explore 4WD & Adventure

Morey's Injector Cleaner 250ml - MIC

Morey's Injector Cleaner 250ml - MIC

$17
Fitment Notes:
See More
Trico Vision Washer Additive 500ml - A90020

Trico Vision Washer Additive 500ml - A90020

$14
Fitment Notes:
See More
Flashlube Injector Cleaner 50mL - FI50MX20B

Flashlube Injector Cleaner 50mL - FI50MX20B

$6
Fitment Notes:
See More
Toledo Coolant Filler Funnel Set - 305092

Toledo Coolant Filler Funnel Set - 305092

$224
Fitment Notes:
See More
Chemtech Diesel Power Fuel Additive 1L - CDP-1L

Chemtech Diesel Power Fuel Additive 1L - CDP-1L

$112
Fitment Notes:
See More
Euroquip Fuel System Conditioner 1L - B1LFS

Euroquip Fuel System Conditioner 1L - B1LFS

$128
Fitment Notes:
See More
Repco Oil Stabiliser 1L - ROS1L

Repco Oil Stabiliser 1L - ROS1L

$36
Fitment Notes:
See More
Flashlube Injector Cleaner 1L - FI1L
Clearance

Flashlube Injector Cleaner 1L - FI1L

$18
Fitment Notes:
See More
Repco Petrol Booster & Cleaner 300mL - RPBC300

Repco Petrol Booster & Cleaner 300mL - RPBC300

$38
Fitment Notes:
See More
Morey's Oil Stabiliser 5L - MOS5L
Clearance

Morey's Oil Stabiliser 5L - MOS5L

$108
Fitment Notes:
See More
Penrite Pro Series Petrol Fuel Boost 500ml - PSPFB0005

Penrite Pro Series Petrol Fuel Boost 500ml - PSPFB0005

$77
Fitment Notes:
See More
Rislone Petrol Fuel Treatment 500ml - 44700

Rislone Petrol Fuel Treatment 500ml - 44700

$43
Fitment Notes:
See More
Repco Cooling System Pressure Test Kit - RST194

Repco Cooling System Pressure Test Kit - RST194

$368
Fitment Notes:
See More
Flashlube Valve Saver Fluid 1L - FV1L

Flashlube Valve Saver Fluid 1L - FV1L

$43
Fitment Notes:
See More
Penrite Diesel Fuel D-Tox 250ml - ADDTOX250
Clearance

Penrite Diesel Fuel D-Tox 250ml - ADDTOX250

$2
Fitment Notes:
See More
Repco 3 Pc Hose Pinching Pliers Set - RST234

Repco 3 Pc Hose Pinching Pliers Set - RST234

$44
Fitment Notes:
See More
Rislone Power Steering Repair 500ml - 44650

Rislone Power Steering Repair 500ml - 44650

$42
Fitment Notes:
See More
Rain-X Glass Cleaner Trigger 680ml - 64 630018

Rain-X Glass Cleaner Trigger 680ml - 64 630018

$36
Fitment Notes:
See More
Repco Engine Oil Stop Leak 300ml - RESL

Repco Engine Oil Stop Leak 300ml - RESL

$32
Fitment Notes:
See More
T&E Tools Multi-Directional Hose Clamp Pliers

T&E Tools Multi-Directional Hose Clamp Pliers

$61
Fitment Notes:
See More
Toledo Powerbar Impact Wrench - 301337

Toledo Powerbar Impact Wrench - 301337

$208
Fitment Notes:
See More
Viper Brite Coil Cleaner 3.78L - RT300G

Viper Brite Coil Cleaner 3.78L - RT300G

$337
Fitment Notes:
See More
Toledo Cooling System Tester Truck - 308380

Toledo Cooling System Tester Truck - 308380

$787
Fitment Notes:
See More
T&E Tools Hose Pinch-Off Pliers - 250mm - 4256

T&E Tools Hose Pinch-Off Pliers - 250mm - 4256

$94
Fitment Notes:
See More
T&E Tools Universal Automotive Thermometer

T&E Tools Universal Automotive Thermometer

$31
Fitment Notes:
See More
Repco Radiator Stop Leak 500ml - RRADSTOP500
Clearance

Repco Radiator Stop Leak 500ml - RRADSTOP500

$2
Fitment Notes:
See More
Showing 79 - 117 of 117 products

Understanding the Radiator in the 2004 Lexus IS: Purpose, Maintenance, and Replacement Tips

The 2004 Lexus IS is a popular luxury compact sedan known for its performance and reliability. Like most conventional petrol-powered vehicles, the 2004 Lexus IS is equipped with a radiator as part of its cooling system. The radiator plays a crucial role in ensuring the engine stays at an optimal temperature, preventing overheating and potential engine damage. If you're a 2004 Lexus IS owner or looking after one, understanding what the radiator does and how to maintain or replace it can keep your ride running smoothly for years to come.

The radiator's main job is to cool down the engine coolant that absorbs heat from the engine block. When the engine is running, it generates a lot of heat, which needs to be removed effectively to avoid overheating. The coolant circulates through the engine, collecting this heat, then flows through the radiator where the heat is transferred to the air passing through the radiator fins. This cooled coolant is then recirculated back into the engine to continue absorbing heat. Without a well-functioning radiator, your 2004 Lexus IS's engine could quickly overheat, leading to serious mechanical issues like warped heads or blown gaskets.

Lexus engineers fit the radiator in the IS to work in harmony with other components such as the water pump and thermostat, forming a complete cooling system that manages the engine temperature efficiently. This setup helps maintain engine performance, fuel efficiency, and longevity. Not only that, the radiator also supports the operation of the air conditioning system by providing airflow, which aids in temperature regulation inside the vehicle cabin.

Maintaining the radiator in your 2004 Lexus IS is key to keeping everything running without drama. Over time, radiators can develop leaks, become clogged with debris, or corrode internally due to mineral build-up from coolant. Regular maintenance can catch these problems before they lead to expensive repairs. Here are some tips to keep the radiator in tip-top shape:

  • Check coolant levels and top up with the recommended type if necessary
  • Inspect the radiator and hoses for any visible signs of leaks or damage
  • Flush the cooling system every two years or about 40,000 kilometers to clear out contaminants
  • Ensure the radiator cap is sealing properly to maintain correct pressure
  • Keep the radiator fins clean and free of obstructions such as leaves or dirt

When it comes to radiator replacement, it's usually recommended if there are persistent leaks, cracks, or severe corrosion that can't be repaired. A damaged radiator can cause coolant loss, resulting in engine overheating and expensive repairs down the track. Although a new radiator might seem like a big investment, it's well worth it to protect the heart of your vehicle's engine.

Replacing the radiator on a 2004 Lexus IS should ideally be done by a professional mechanic who understands this model's specific cooling system layout. The process involves draining the old coolant, disconnecting hoses and sensors, removing the radiator, and installing the new one before refilling with the correct coolant mixture. After replacement, it's important to check for leaks and ensure the cooling system is properly bled of air pockets to avoid overheating issues.

Owners should also keep an eye out for warning signs that the radiator or cooling system might not be up to scratch. These can include the temperature gauge rising higher than usual, coolant puddles under the car, steam coming from the engine bay, or a sweet smell inside or outside the vehicle which indicates a coolant leak. If any of these symptoms appear, it's best to get the cooling system inspected promptly.

Overall, the radiator is an essential part of the 2004 Lexus IS and contributes directly to the vehicle's reliable performance. Regular radiator maintenance and timely replacement when necessary help prevent breakdowns and maintain your Lexus at its best. Taking care of the cooling system is just another way to ensure your 2004 Lexus IS continues to provide a smooth and enjoyable driving experience across Australian roads.