Shop Radiator Overflow Tanks Online at My Auto Parts! 

My Auto Parts is your one-stop shop for getting your car back on the road. We have a collection of high-quality genuine and aftermarket Radiator Overflow Tank to fit any make, model, and year—30-day fitment guarantee on all parts. Browse our Radiator Overflow Tank catalogue and get the parts you need to get back behind the wheel – fast! 

Why is a Radiator Overflow Tank an essential part of your car? 

Maintains Coolant Level: The radiator overflow tank, also called a coolant reservoir, stores excess coolant when the engine heats up. As the engine cools, the coolant contracts, and the reservoir supplies the radiator with the coolant it needs. This prevents the radiator from being overfilled when cold, which could lead to coolant spewing out when it expands.

Maintains Coolant Level: The overflow tank, also called a coolant reservoir, stores excess coolant when the engine heats up. As the engine cools, the coolant contracts, and the reservoir supplies the radiator with the coolant it needs. This prevents the radiator from being overfilled when cold, which could lead to coolant spewing out as it expands.


For further information about the aftermarket and genuine parts available across My Auto Parts, please refer to our guide. 

Fast and Reliable Delivery:   

  • FREE shipping* on orders over $199: For more information on our free shipping deal see *here.    

  • 5 Australian warehouses: Get your orders quickly and efficiently, delivered directly from our local warehouses. 

Shop Radiator Overflow Tank with Confidence:  

  • 5- Star ratings on Trustpilot: Our customers share why they enjoy shopping online at My Auto Parts!      

  • 30-day no fault return policy: Changed your mind? Not a problem; after purchase, you have 30 days to return the part and get a refund.    

  • Get your questions answered: The My Auto Parts team is ready to answer your questions via online chat and guide you towards the perfect Radiator Overflow Tank. (click the Chat button on the bottom right corner) 

  • Secure checkout: Shop with peace of mind, knowing your information is protected by our secure payment systems.    

  • Buy now, pay later services available: Popular payment management services are available at checkout.    

  • Full fitment information for all parts: Be sure to check the compatible vehicles section on each product page to make sure you have the right part for your vehicle. Search the website using part numbers for VINs 

Customer Support and Information  

My Auto parts has been delivering car parts for 4 years now, with an inventory built off 30 years of experience in the auto parts industry. Our team is ready to help you with any questions you may have. We are on standby to ensure you receive the right advice and support when choosing from our Radiator Overflow Tank catalogue for your car. Start a chat by clicking the chat button at the bottom right. You can also email us at info@myautoparts.com.au or leave us a message here. 

 

Big discounts up to 80% off list prices! View Sale Items here!   

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Without Cap Without Sensor Expansion Bottle Genuine suits Mazda
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Without Cap Without Sensor Expansion Bottle Genuine suits Mazda

[compatible-vehicles]Mazda 3 BM Hatch Maxx Automatic 2.0L 4Cyl Petrol 4Dr FWD 1/2015-4/2016 Hatch Maxx Automatic 2.0L 4Cyl Petrol 4Dr FWD 11/2013-12/2014 Hatch Maxx Manual 2.0L 4Cyl Petrol 4Dr FWD 1/2015-4/2016...
$84.30
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Radiator Overflow Bottle Genuine Suits Mazda 6 GJ 2015 to 2016
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Radiator Overflow Bottle Genuine Suits Mazda 6 GJ 2015 to 2016

Radiator Overflow Bottle suits Mazda 6 fits - Gjii Sedan/Wagon, 2.2L 15-[compatible-vehicles]Mazda 6 GJ Sedan Atenza Automatic 2.2L 4Cyl Turbo Diesel 4Dr FWD 2/2015-2/2016 Sedan Atenza Automatic 2.2L 4Cyl Turbo...
$63.09
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Radiator Overflow Bottle Aftermarket suits Mazda 6
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Radiator Overflow Bottle Aftermarket suits Mazda 6

[compatible-vehicles]Mazda 6 GG/GYGg 4Dr Sedan / 5Dr Hatch & Gy Wagon 7/2002-2/2008 GH4Dr Sedan / 5Dr Hatch & Wagon 2/2008-12/2012 [/compatible-vehicles]
$35.90
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Genuine Radiator Overflow Bottle suits Mazda CX-30 DM 2019 onwards

Radiator Overflow Bottle suits Mazda CX-30. Fits on Mazda CX-30 DM 2019 onwards. This Radiator Overflow Bottle is a quality Genuine product.[compatible-vehicles]Mazda CX-30 DM Wagon G20 Astina Automatic 2.0L 4Cyl...
$234.50
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Radiator Overflow Bottle Aftermarket suits Mazda CX-3 DK

Radiator Overflow Bottle suits Mazda CX-3. Fits on Mazda CX-3 DK built from 2017 to 2019. This Radiator Overflow Bottle is a quality Aftermarket product.[compatible-vehicles]Mazda CX-3 DK SUV Akari 5/2017-8/2018...
$60.70
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Radiator Overflow Bottle Genuine suits Mazda CX-3 DK
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Radiator Overflow Bottle Genuine suits Mazda CX-3 DK

[compatible-vehicles]Mazda CX-3 DK SUV Akari 3/2015-4/2017 SUV Maxx 3/2015-4/2017 SUV Neo 3/2015-4/2017 SUV S-Touring 3/2015-4/2017 Wagon Akari AWD Automatic 1.5L 4Cyl Turbo Diesel 4Dr 4WD 1/2016-5/2017 Wagon Akari AWD Automatic...
$125.04
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Kia Carnival VQ 2006 to 2015
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Kia Carnival VQ 2006 to 2015

[compatible-vehicles]Kia Carnival VQ& Grand Carnival Wagon 1/2006-1/2015 [/compatible-vehicles]
$143.87
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Radiator Overflow Bottle,With Cap but without Sensor, Aftermarket Suits Kia Carnival VQ 2006 to 2015 Radiator Overflow Bottle,With Cap but without Sensor, Aftermarket Suits Kia Carnival VQ 2006 to 2015
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Radiator Overflow Bottle,With Cap but without Sensor, Aftermarket Suits Kia Carnival VQ 2006 to 2015

[compatible-vehicles]Kia Carnival VQ& Grand Carnival Wagon 1/2006-1/2015 [/compatible-vehicles]
$173.06
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Radiator Overflow Bottle Genuine suits Radiator Overflow Bottle Genuine suits
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Radiator Overflow Bottle Genuine suits

[compatible-vehicles]Hyundai Tucson TL Wagon 30 Special Edition DCT 1.6L 4Cyl Turbo Petrol 4Dr AWD 5/2016-6/2018 Wagon Active Automatic 2.0L 4Cyl Petrol 4Dr FWD 3/2017-6/2018 Wagon Active Automatic 2.0L 4Cyl Petrol...
$118.92
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With Cap Without Sensor Radiator Overflow Bottle Genuine Suits Hyundai Trajet FO 2000 to 2007 With Cap Without Sensor Radiator Overflow Bottle Genuine Suits Hyundai Trajet FO 2000 to 2007
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With Cap Without Sensor Radiator Overflow Bottle Genuine Suits Hyundai Trajet FO 2000 to 2007

[compatible-vehicles]Hyundai Trajet FOWagon 3/2000-12/2007 [/compatible-vehicles]
$206.84
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Radiator Overflow Bottle Genuine suits Hyundai i30 1.8L G4NB Petrol Radiator Overflow Bottle Genuine suits Hyundai i30 1.8L G4NB Petrol
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Radiator Overflow Bottle Genuine suits Hyundai i30 1.8L G4NB Petrol

[compatible-vehicles]Hyundai i30 GD Hatch 1.6 GDI Special Edition Auto 1.6L 4Cyl Petrol 2Dr FWD 7/2013-12/2014 Hatch 1.8 MPI Active Auto 1.8L 4Cyl Petrol 4Dr FWD 12/2014-3/2017 Hatch 1.8 MPI Active...
$199.07
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Radiator Overflow Bottle Genuine suits Hyundai i30 1.6L D4FB Diesel Radiator Overflow Bottle Genuine suits Hyundai i30 1.6L D4FB Diesel
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Radiator Overflow Bottle Genuine suits Hyundai i30 1.6L D4FB Diesel

[compatible-vehicles]Hyundai i30 GD Hatch 1.6 CRDi Active Auto 1.6L 4Cyl Turbo Diesel 4Dr FWD 5/2012-12/2014 Hatch 1.6 CRDi Active Manual 1.6L 4Cyl Turbo Diesel 4Dr FWD 5/2012-12/2014 Hatch 1.6 CRDi...
$29.25
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Radiator Overflow Bottle Aftermarket Suits Hyundai Getz TB 2005 to 2011 Radiator Overflow Bottle Aftermarket Suits Hyundai Getz TB 2005 to 2011
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Radiator Overflow Bottle Aftermarket Suits Hyundai Getz TB 2005 to 2011

[compatible-vehicles]Hyundai Getz TB3/5Dr 9/2005-11/2011 [/compatible-vehicles]
$47.09
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With Cap Without Sensor Expansion Bottle Aftermarket suits Holden With Cap Without Sensor Expansion Bottle Aftermarket suits Holden
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With Cap Without Sensor Expansion Bottle Aftermarket suits Holden

[compatible-vehicles]Holden Berlina VY Sedan Auto 3.8L 6Cyl Petrol 4Dr RWD 10/2002-8/2003 Sedan Auto 5.7L 8Cyl Petrol 4Dr RWD 10/2002-8/2003 Wagon Auto 3.8L 6Cyl Petrol 4Dr RWD 10/2002-8/2003 Wagon Auto 5.7L...
$41.40
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Without Cap Without Sensor Radiator Overflow Bottle Genuine suits Holden Barina TM Without Cap Without Sensor Radiator Overflow Bottle Genuine suits Holden Barina TM
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Without Cap Without Sensor Radiator Overflow Bottle Genuine suits Holden Barina TM

[compatible-vehicles]Holden Barina TM Hatch CD CD Auto 1.6L 4Cyl Petrol 4Dr FWD 10/2011-9/2016 Hatch CD CD Manual 1.6L 4Cyl Petrol 4Dr FWD 10/2011-9/2016 Hatch CDX CDX Auto 1.6L 4Cyl Petrol...
$72.45
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012 Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012

[compatible-vehicles]Holden Barina TK 3/5Dr Hatch 12/2005-12/2012 4Dr Sedan 2/2006-11/2011 [/compatible-vehicles]
$57.44
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012 Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012
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Without Cap Without Sensor Radiator Overflow Bottle Genuine Suits Holden Barina TK 2005 to 2012

[compatible-vehicles]Holden Barina TK3/5Dr Hatch 12/2005-12/2012 [/compatible-vehicles]
$57.44
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Radiator Overflow Bottle Genuine suits Holden
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Radiator Overflow Bottle Genuine suits Holden

[compatible-vehicles]Holden Colorado RG Pick-Up DX Man/Auto 2.8L 4Cyl Turbo Diesel 2Dr 4X2 6/2012-7/2016 Pick-Up LS Automatic 2.8L 4Cyl Turbo Diesel 4Dr 4X2 7/2016-3/2019 Pick-Up LS Automatic 2.8L 4Cyl Turbo Diesel...
$58.55
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Radiator Overflow Bottle Aftermarket suits Isuzu Truck N Series
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Radiator Overflow Bottle Aftermarket suits Isuzu Truck N Series

[compatible-vehicles]Isuzu Truck N Series NLR Single Cab Narrow NH AMT 3.0L 4Cyl Turbo Diesel 2Dr RWD 10/2010-6/2015 Single Cab Narrow NH AMT 3.0L 4Cyl Turbo Diesel 2Dr RWD 11/2007-9/2010 Single...
$151.12
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With Cap With Sensor Radiator Overflow Bottle Aftermarket Suits Holden Astra TS 1998 to 2006 With Cap With Sensor Radiator Overflow Bottle Aftermarket Suits Holden Astra TS 1998 to 2006
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With Cap With Sensor Radiator Overflow Bottle Aftermarket Suits Holden Astra TS 1998 to 2006

[compatible-vehicles]Holden Astra TS3/4/5Dr 8/1998-10/2006 [/compatible-vehicles]
$51.44
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