Description
The right part.
Down to the detail.
New aftermarket coolant expansion tank for the listed Australian Hyundai i30 FD hatchback or CW wagon with the 1.6L D4FB turbo-diesel engine and automatic transmission, within the 11/2007–11/2012 scope. Reference 25431-2H100. Match the original reference, moulded tank shape, metal pressure-cap arrangement, hose outlets and mounting points before ordering. Actual manufacturer photographs show the compact translucent tank, cap and integral mounting supports. The tall petrol overflow bottle is a different part. Supplied as one tank with the cap shown; hoses and coolant are not included. Manual-transmission, petrol and GD applications are not covered by this listing. Send your VIN, build date and original-tank photographs for a fitment check.
Reference 25431-2H100. Send our team your exact model, build date and a photo of the original part if you need a fitment check.


Confidence starts
before dispatch.
We select our manufacturers for quality, and every part is tested in Australia before it leaves us. It’s a standard we stand behind with local support.
Less waiting.
More driving.
Australian orders under 500g receive free express postage. Orders weighing 500g or more receive free regular postage. Dispatch is from Queensland; availability and delivery estimates are shown at checkout.
Free express postage.
Express delivery is included for Australian orders under 500g.
Free regular postage.
Heavier orders travel by regular post at no delivery charge. See the shipping policy for available options.
Know what to expect.
Check the shipping policy for delivery information, or contact our team before ordering.


at Parts Factory
Real people.
Behind every part.
For nine years, our family-owned business has helped Australians find the parts they need. From checking an application to after-sales support, you can speak with our local team.
Real people.
Practical know-how.
Get to know Parts Factory Australia, then explore our installation tutorials, parts guides and practical tips on YouTube.
Explore our YouTube tutorials ↗
Tutorial availability varies by part and vehicle. Check the exact application and follow the product’s professional installation requirements.
Years of replacement cover.
Professional installation and receipts are required.
Read the full warranty terms ↗
Help when you need it.
Contact our team for fitment, delivery or after-sales support. View our 7-day returns policy and conditions ↗
Good questions.
Clear answers.
A few details now can help you choose the right part first time.
How do I check this coolant expansion tank fits?
New aftermarket coolant expansion tank for the listed Australian Hyundai i30 FD hatchback or CW wagon with the 1.6L D4FB turbo-diesel engine and automatic transmission, within the 11/2007–11/2012 scope. Reference 25431-2H100. Match the original reference, moulded tank shape, metal pressure-cap arrangement, hose outlets and mounting points before ordering. Actual manufacturer photographs show the compact translucent tank, cap and integral mounting supports. The tall petrol overflow bottle is a different part. Supplied as one tank with the cap shown; hoses and coolant are not included. Manual-transmission, petrol and GD applications are not covered by this listing. Send your VIN, build date and original-tank photographs for a fitment check. Compare the original part and vehicle details; contact us before ordering if anything differs.
What is the reference and key specification?
Reference: 25431-2H100. Listed specification: 1.6L D4FB turbo diesel · automatic transmission · tank with cap · match all outlets. Listed product: Hyundai i30 FD 1.6L Diesel Coolant Expansion Tank 11/2007–11/2012 – Automatic. New aftermarket coolant expansion tank for the listed Australian Hyundai i30 FD hatchback or CW wagon with the 1.6L D4FB turbo-diesel engine and automatic transmission, within the 11/2007–11/2012 scope. Reference 25431-2H100. Match the original reference, moulded tank shape, metal pressure-cap arrangement, hose outlets and mounting points before ordering. Actual manufacturer photographs show the compact translucent tank, cap and integral mounting supports. The tall petrol overflow bottle is a different part. Supplied as one tank with the cap shown; hoses and coolant are not included. Manual-transmission, petrol and GD applications are not covered by this listing. Send your VIN, build date and original-tank photographs for a fitment check.
Is it shipped from Australia?
Australian orders under 500g receive free express postage. Orders weighing 500g or more receive free regular postage. Dispatch is from Queensland; availability and delivery estimates are shown at checkout.
Is there a guide for my installation?
Our YouTube channel includes installation tutorials and parts guides. Check for your exact part and vehicle; not every application has a guide. The video on this page introduces our business.
What does the replacement warranty require?
Professional installation and retained receipts are required. Read the warranty terms for the cover, exclusions and claim process.




Explore the rangeHyundai i30 Window Regulator Kit w/ Cables, Panel & Motor ~ FD 2007-2012 (EP063956)
Explore the rangeHyundai i30 Master Window Switch Control suit 2007-2012 Hatch Wagon FD (93570-2L910)
Explore the rangeHyundai i30 Sun Visor Shade to suit FD 2007-2012 Hatchback, Wagon in Grey (85202-2L520TX)
Reviews
There are no reviews yet