Overflow Bottle Cap
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Holden Captiva Coolant Reservoir Tank Bottle for Diesel & Petrol *Twin Pipe* 2007-2015 96837836
Original price was: $100.00.$68.30Current price is: $68.30. (Inc. GST) -
Holden Cruze Barina JG JH TM Overflow Expansion Tank Cap Lid Pressure
Original price was: $50.00.$25.00Current price is: $25.00. (Inc. GST)
Overflow Bottle Cap
Stop coolant loss and maintain proper pressure with a high-quality aftermarket Overflow Bottle Cap from Parts Factory Australia. Each cap is designed to seal tightly, prevent leaks, and keep your cooling system running at the correct temperature and pressure.
Shop Popular Options
Holden Cruze Overflow Bottle Cap — OEM-equivalent coolant reservoir cap for perfect sealing
Ford Ranger Overflow Bottle Cap — Reliable radiator overflow cap for long-term durability
Holden Commodore Overflow Bottle Cap — Direct-fit expansion tank cap built to factory specs
View All Overflow Bottle Caps — Explore the complete range
Why Choose Us
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Aftermarket OEM-equivalent quality for guaranteed fitment
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Maintains correct coolant system pressure
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Prevents leaks and coolant evaporation
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Fast Australian delivery with tracking
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Covered by a 3-year replacement warranty
What It Does
An Overflow Bottle Cap (also called a coolant reservoir cap or radiator overflow cap) keeps your cooling system sealed under pressure, allowing coolant to expand and contract safely. When cracked or worn, it can cause overheating or coolant loss. Replacing it restores proper cooling system pressure control and prevents leaks.
FAQs
What are the signs of a bad overflow bottle cap?
Coolant leaks, overheating, or visible cracks in the cap seal.
Are these genuine parts?
No — all are aftermarket OEM-equivalent, designed for the same fit and pressure rating as factory caps.
Can I install it myself?
Yes — simply twist off the old cap and replace it with the new one; no tools required.
Related Parts
Overflow Bottles
Radiators
Thermostat Housings