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Parts for your 2004 Lexus Is-Radiator

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Sealwell Coolant System Conditioner 2 Pack - T51012

Sealwell Coolant System Conditioner 2 Pack - T51012

$27
Fitment Notes:
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Nulon Engine Stop Smoke 500ml - SS
Clearance

Nulon Engine Stop Smoke 500ml - SS

$10
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Penrite Engine Boost+ 500ml - PSPEB0005
Clearance

Penrite Engine Boost+ 500ml - PSPEB0005

$10
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Explore 4WD & Adventure

Rislone Head Gasket Fix 680g - 41111

Rislone Head Gasket Fix 680g - 41111

$101
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Flashlube Diesel Conditioner 50ml - FD50MX20B

Flashlube Diesel Conditioner 50ml - FD50MX20B

$7
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Proma MBL8 Oil Concentrate 250ml - 50083

Proma MBL8 Oil Concentrate 250ml - 50083

$80
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Prestone Radiator Flush / Cleaner 650ml - AS105Y

Prestone Radiator Flush / Cleaner 650ml - AS105Y

$24
Fitment Notes:
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Kelpro Radiator Support Mounting Stud - 29801

Kelpro Radiator Support Mounting Stud - 29801

$16
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Penrite Radiator Oil Remover 375ml - ADROR375

Penrite Radiator Oil Remover 375ml - ADROR375

$35
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Rislone Super Radiator Flush 650mL - 41201

Rislone Super Radiator Flush 650mL - 41201

$24
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Lubegard Shudder Fix 60ML - 19610

Lubegard Shudder Fix 60ML - 19610

$30
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Lucas Power Steering Stop Leak 355mL - 10008

Lucas Power Steering Stop Leak 355mL - 10008

$44
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Wynn's Radiator Flush 325mL - 65332
Clearance

Wynn's Radiator Flush 325mL - 65332

$25
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Nice Products Radiator Drain Tap 1/8 In - NRC13

Nice Products Radiator Drain Tap 1/8 In - NRC13

$28
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Lucas Transmission Fix Stop Slip 700mL - 10009

Lucas Transmission Fix Stop Slip 700mL - 10009

$47
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Repco Fuel System Cleaner 500mL - RFSC500

Repco Fuel System Cleaner 500mL - RFSC500

$35
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Irontite Coolant System Sealer 600g - 960101

Irontite Coolant System Sealer 600g - 960101

$67
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Tee-Kay Head Chek - HEADCHEK

Tee-Kay Head Chek - HEADCHEK

$105
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Rislone Engine Treatment Concentrate 500ml - 44102

Rislone Engine Treatment Concentrate 500ml - 44102

$23
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Repco Radiator Cooling System Kit - RTT1019

Repco Radiator Cooling System Kit - RTT1019

$906
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Repco Radiator Pressure Tester Kit - RTT1017

Repco Radiator Pressure Tester Kit - RTT1017

$617
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T&E Tools Radiator Back Flusher

T&E Tools Radiator Back Flusher

$92
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Tee-Kay Head Chek Fluid 16oz. - TKFLUID500

Tee-Kay Head Chek Fluid 16oz. - TKFLUID500

$27
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Toledo Radiator Back Flusher - 308237

Toledo Radiator Back Flusher - 308237

$116
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Toledo Radiator Fin Straightener - 308240

Toledo Radiator Fin Straightener - 308240

$22
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CRC Fibre Lock 946ml - 1224
CRC

CRC Fibre Lock 946ml - 1224

$119
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T&E Tools Radiator Fin Straightener

T&E Tools Radiator Fin Straightener

$43
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Rislone Hy-Per Cool Super Coolant 473ml - 41300

Rislone Hy-Per Cool Super Coolant 473ml - 41300

$39
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Rain-X Washer Fluid Additive 500ml - 64 RX11806D

Rain-X Washer Fluid Additive 500ml - 64 RX11806D

$32
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Gates Hose Cutter up to 3in ID - 91143

Gates Hose Cutter up to 3in ID - 91143

$213
Fitment Notes:
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Showing 40 - 78 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.