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Parts for your 2021 Lexus Is-Coolant

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Goss Fuel Emiss Hose 6MMx15M PerM - FH60L150M

Goss Fuel Emiss Hose 6MMx15M PerM - FH60L150M

$19
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Mechpro 3 in 1 Funnel with Strainer - MPF3IN1

Mechpro 3 in 1 Funnel with Strainer - MPF3IN1

$15
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Irontite Coolant System Sealer 600g - 960101

Irontite Coolant System Sealer 600g - 960101

$67
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Goss Transmission Cooler Hose 8mm x 1m - TCH80L10

Goss Transmission Cooler Hose 8mm x 1m - TCH80L10

$22
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Nulon Radiator Flush & Clean 300mL - R40
Clearance

Nulon Radiator Flush & Clean 300mL - R40

$18
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Toledo Coolant Filler Funnel Set - 305092

Toledo Coolant Filler Funnel Set - 305092

$224
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Explore 4WD & Adventure

Bedia Liquid Level Coolant Probe - 320408

Bedia Liquid Level Coolant Probe - 320408

$643
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Goss FuelcInjection Hose 8MMx 1M - FI80L10

Goss FuelcInjection Hose 8MMx 1M - FI80L10

$32
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Mechpro Multi-Purpose Funnel - MPFMULTI

Mechpro Multi-Purpose Funnel - MPFMULTI

$6
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Repco Radiator Cooling System Kit - RTT1019

Repco Radiator Cooling System Kit - RTT1019

$906
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GossFuel Emiss Hose (1/4) 6MM x 1M - FH60L10

GossFuel Emiss Hose (1/4) 6MM x 1M - FH60L10

$17
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VDO Temperature Sensor 1/8 - 27NPT Stud Terminals - 320.093
VDO

VDO Temperature Sensor 1/8 - 27NPT Stud Terminals - 320.093

$75
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Goss Transmission Cooler Hose 10mm x 1m - TCH100L10

Goss Transmission Cooler Hose 10mm x 1m - TCH100L10

$24
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GossFuel Emiss Hose (3/8) 10MM x 1M - FH100L10

GossFuel Emiss Hose (3/8) 10MM x 1M - FH100L10

$21
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Repco Oil Extractor 6L - ROE6L

Repco Oil Extractor 6L - ROE6L

$253
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Mechpro Giant Funnel - MPFGNT
Clearance

Mechpro Giant Funnel - MPFGNT

$5
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Wynn's Radiator Flush 325mL - 65332
Clearance

Wynn's Radiator Flush 325mL - 65332

$25
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Penrite Radiator Oil Remover 375ml - ADROR375

Penrite Radiator Oil Remover 375ml - ADROR375

$35
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Mechpro Super Quick Fill Funnel - MPFQUICK

Mechpro Super Quick Fill Funnel - MPFQUICK

$17
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Repco Heater Tap Valve - RHV4008

Repco Heater Tap Valve - RHV4008

$109
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Mechpro Square Locking Funnel - MPFSQU

Mechpro Square Locking Funnel - MPFSQU

$8
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Tru-Flow Heater Tap Valve - TFT4008

Tru-Flow Heater Tap Valve - TFT4008

$71
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GossFuel Emiss Hose (5/32) 4MM x 1M - FH40L10

GossFuel Emiss Hose (5/32) 4MM x 1M - FH40L10

$15
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Toledo Low Profile Oil Drain Pan 20L - 305089

Toledo Low Profile Oil Drain Pan 20L - 305089

$302
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Goss Brake Vaccum Hose 12MMx15M-PerM - BV120L150M

Goss Brake Vaccum Hose 12MMx15M-PerM - BV120L150M

$35
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Goss Brake Vacuum Hose 9MMx15M PerM - BV90L150M

Goss Brake Vacuum Hose 9MMx15M PerM - BV90L150M

$31
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GossFuel Emiss Hose (1/8) 3MM x 1M - FH30L10

GossFuel Emiss Hose (1/8) 3MM x 1M - FH30L10

$22
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Mackay Heater Tap Valve - Camry 92-97 Lexus - HV3020M

Mackay Heater Tap Valve - Camry 92-97 Lexus - HV3020M

$108
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Goss Fuel Emiss Hose 4MMx5M - FH40L50

Goss Fuel Emiss Hose 4MMx5M - FH40L50

$67
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Goss Transmission Cooler Hose 10mm x 5m - TCH100L50

Goss Transmission Cooler Hose 10mm x 5m - TCH100L50

$80
Fitment Notes:
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Goss Fuel Emiss Hose 5MMx15M PerM - FH50L150M

Goss Fuel Emiss Hose 5MMx15M PerM - FH50L150M

$19
Fitment Notes:
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VDO Temperature Switch 1/4 - NPTF - 320.714
VDO

VDO Temperature Switch 1/4 - NPTF - 320.714

$644
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Showing 40 - 78 of 118 products

Understanding Coolant for the 2021 Lexus IS

The 2021 Lexus IS is a sleek, performance-oriented sedan that combines style and engineering finesse. Like most modern vehicles, it relies on a liquid coolant system to keep the engine running smoothly and prevent overheating. So, yes, coolant is definitely relevant and used in the 2021 Lexus IS to ensure efficient engine temperature regulation.

Coolant, sometimes called antifreeze, is a vital fluid that circulates through the engine's cooling system. Its primary role is to absorb the heat generated by the engine and dissipate it through the radiator, preventing the engine from running too hot. Beyond just cooling, coolant also safeguards the engine against freezing in cold weather and provides protection against corrosion inside the cooling system components. This means the car can handle everything from hot Australian summers to chilly winter mornings without any hiccups.

For Lexus IS owners, understanding coolant maintenance is an important part of keeping the vehicle in top shape. The coolant used in the 2021 Lexus IS is typically a specific formula recommended by Lexus, designed to work with the engine materials and cooling system parts. This coolant usually features long-life additives, which means it won't need replacing as frequently as traditional antifreeze options.

Still, even long-life coolants don't last forever, and regular inspection and replacement as part of the vehicle's servicing schedule is key. Over time, coolant can degrade or become contaminated with rust or dirt particles, which can compromise its efficiency and potentially cause damage to engine components like the radiator, water pump, or thermostat.

When it comes to coolant replacement for the 2021 Lexus IS, it's generally recommended to follow the service schedule outlined in the owner's manual. Typically, this means flushing and replacing the coolant every 100,000 kilometres or every five years, whichever comes first, but checking the specific recommendations for your model year is always a good move.

During a coolant flush, the old coolant is completely drained from the system, the radiator and engine block are usually flushed with clean water to remove any lingering contaminants, and fresh coolant mixed to the correct concentration with water is added. This process ensures that the cooling system delivers optimal performance and protects the engine effectively.

It's worth noting that mixing different types of coolant or simply topping up rather than fully replacing the coolant can create problems. Coolants have different chemical formulations and mixing them can reduce their effectiveness or cause sludge build-up inside the cooling system. That's why it's best to stick to the manufacturer's specified coolant type, usually available at Lexus dealerships or authorised repairers.

Regular checks between servicing appointments can also help spot any coolant issues early. Owners should keep an eye on the coolant reservoir level to make sure it's at the correct mark. If it's consistently dropping, it could be due to a leak in the system that needs attention. Also, signs like a sweet smell inside the car, visible leaks, or engine overheating should be checked immediately by a professional.

Taking proper care of the coolant system not only helps avoid costly engine repairs but also keeps the Lexus IS running efficiently and comfortably. Efficient cooling means the engine runs at the right temperature, improving fuel economy and reducing emissions. Plus, a well-maintained cooling system extends the overall life of the engine.

In short, 2021 Lexus IS owners should treat coolant maintenance as an essential part of vehicle care. Paying attention to the right coolant type, maintaining the correct levels, and adhering to scheduled flushes helps ensure the engine stays cool and protected on every drive, whether it's a city commute or a weekend trip out of town.