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 OEM 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 OEM parts available across My Auto Parts, please refer to our guide.

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  • 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)

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  • 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.

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With Cap Without Sensor Radiator Overflow Bottle Aftermarket Suits Holden Barina XC 2001 to 2011

[compatible-vehicles]Holden Barina XC3/5Dr 3/01-11/05 & Combo Van 9/02-9/11 3/2001-9/2011 [/compatible-vehicles]
$31.56
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Radiator Overflow Bottle OEM suits Holden

[compatible-vehicles]Holden Colorado RG Cab Chassis 4x2 LS Automatic 2.8L 4Cyl Turbo Diesel 4Dr RWD 6/2012-9/2016 Cab Chassis 4x2 LS Automatic 2.8L 4Cyl Turbo Diesel 4Dr RWD 7/2017-7/2018 Cab Chassis 4x2...
$57.82
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Without Cap Without Sensor Radiator Overflow Bottle OEM suits Holden Barina Spark MJ

[compatible-vehicles]Holden Barina Spark MJ Hatch CD CD Automatic 1.2L 4Cyl Petrol 4Dr FWD 1/2013-4/2016 Hatch CD CD Manual 1.2L 4Cyl Petrol 4Dr FWD 1/2013-12/2015 Hatch CD CD Manual 1.2L 4Cyl...
$27.35
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Radiator Overflow Bottle Aftermarket suits

[compatible-vehicles]Holden Colorado RC Cab Chassis Crew Cab LX Manual 3.0L 4Cyl Turbo Diesel 4Dr 4X4 7/2008-6/2012 Cab Chassis Single Cab DX Manual 2.4L 4Cyl Petrol 2Dr 4X2 7/2008-6/2012 Cab Chassis...
$27.05
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Radiator Overflow Bottle OEM suits Isuzu

[compatible-vehicles]Isuzu Ute D-Max TFR Cab Chassis 4x2 SX Hi-Ride Automatic 3.0L 4Cyl Turbo Diesel 2Dr RWD 2/2017-4/2018 Cab Chassis 4x2 SX Hi-Ride Automatic 3.0L 4Cyl Turbo Diesel 2Dr RWD 4/2018-5/2019...
$82.74
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Aftermarket Radiator Overflow Bottle suits Holden Captiva CG II, Holden Captiva 7 CG II 2011 to 2018

Radiator Overflow Bottle suits Holden Captiva, Holden Captiva 7. Fits on Holden Captiva CG II, Holden Captiva 7 CG II built from 2011 to 2018. This Radiator Overflow Bottle is...
$51.72
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Radiator Overflow Bottle Aftermarket suits Ford

[compatible-vehicles]Ford Fairlane BA Sedan G220 Automatic 5.4L 8Cyl Petrol 4Dr RWD 3/2005-10/2005 Sedan G220 Automatic 5.4L 8Cyl Petrol 4Dr RWD 7/2003-3/2005 Sedan Ghia Automatic 4.0L 6Cyl Petrol 4Dr RWD 3/2005-10/2005...
$40.58
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Radiator Overflow Bottle OEM suits Ford

[compatible-vehicles]Ford Everest UAII Wagon Ambiente Automatic 3.2L 5Cyl Turbo Diesel 4Dr 4X4 7/2018-11/2019 Wagon Ambiente Automatic 3.2L 5Cyl Turbo Diesel 4Dr RWD 7/2018-11/2019 Wagon Titanium Automatic 2.0L 4Cyl Turbo Diesel...
$129.92
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Ford Ranger 4X2 OEM Radiator Overflow Bottle 05/2022 to 03/2024 - MB3Z8A080A

Radiator Overflow Bottle suits Ford Ranger 4X2. Fits on Ford Ranger 4X2 P703 built from 05/2022 to 03/2024. This Radiator Overflow Bottle is a quality OEM product. Check compatible vehicle...
$53.39
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OEM Radiator Overflow Bottle suits Ford Escape ZG 2016 to 2020

[compatible-vehicles]Ford Escape ZG Wagon Ambiente Automatic 1.5L 4Cyl Turbo Petrol 4Dr FWD 9/2016-4/2020 Wagon Ambiente Automatic 2.0L 4Cyl Turbo Petrol 4Dr AWD 9/2016-4/2020 Wagon Ambiente Automatic 2.0L 4Cyl Turbo Petrol...
$65.80
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Radiator Overflow Bottle Aftermarket suits BMW

[compatible-vehicles]BMW 3 Series E46Sedan / 2Dr Cpe 6/99 - 8/06 / Conv. 9/00 - 2/07 8/1998-5/2005 BMW X5 E53Wagon 11/2000-3/2007 [/compatible-vehicles]
$117.71
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Radiator Overflow Bottle Aftermarket suits BMW

[compatible-vehicles]BMW 3 Series E46Sedan / 2Dr Cpe 6/99 - 8/06 / Conv. 9/00 - 2/07 8/1998-5/2005 BMW X3 E83 Suv 12/2006-11/2010 Suv 6/2004-11/2006 BMW X5 E53Wagon 11/2000-3/2007 [/compatible-vehicles]
$117.71
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With Cap Without Sensor Radiator Overflow Bottle OEM suits Mitsubishi Triton MQ

[compatible-vehicles]Mitsubishi Triton MQ Cab Chassis 4X2 GLX Automatic 2.4L 4Cyl Turbo Diesel 2Dr RWD 12/2017-12/2018 Cab Chassis 4x2 GLX Manual 2.4L 4Cyl Turbo Diesel 2Dr RWD 12/2016-12/2017 Cab Chassis 4X2...
$27.06
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OEM Radiator Overflow Bottle suits Mitsubishi Pajero NX 2014 to 2019

[compatible-vehicles]Mitsubishi Pajero NX Wagon Exceed Automatic 3.2L 4Cyl Turbo Diesel 4Dr 4WD 10/2020-5/2021 Wagon Exceed Automatic 3.2L 4Cyl Turbo Diesel 4Dr 4X4 11/2016-4/2019 Wagon Exceed Automatic 3.2L 4Cyl Turbo Diesel...
$46.73
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