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Expansion Tank Cap

Expansion Tank Cap

$20
$20
Priced Individually (GST included)
The expansion tank cap regulates the pressure of the entire cooling system. Over time, the cap can become ineffective or begin leaking from its seals.
  • Expansion Tank Cap - Clickable Automotive
  • Expansion Tank Cap - Clickable Automotive
  • Expansion Tank Cap - Clickable Automotive
1 3

Expansion Tank Cap

Expansion Tank Cap

$20
$20
Priced Individually (GST included)
The expansion tank cap regulates the pressure of the entire cooling system. Over time, the cap can become ineffective or begin leaking from its seals.
Please note: this product is not compatible with the vehicles entered. Please go back to the main store page or contact us for help.
If we say a product is in stock, then it’s in our Melbourne warehouse ready to ship. All orders placed before 1 p.m. ship same day, Monday to Friday.
In stock
Quantity not available. We're sorry, we currently have in stock.
View Fitments
DESCRIPTION

The coolant expansion tank cap maintains the necessary pressure in your cooling system, ensuring everything runs effectively. But over time the seal can weaken or deform, gradually leaking coolant and leading to overheating issues. Thousands of heat cycles can also cause the caps to form to the unique shape of the old tank, and we often see customers replace their expansion tank only to experience issues with their old cap not sealing properly. With this in mind, we always recommend ordering a replacement cap when replacing your expansion tank. These are repackaged BMW Genuine expansion tank caps that have the logo etched off. 

HELPFUL TIPS

The expansion tank cap also acts as a safety valve, designed to release pressure before your hoses, fittings, and radiator bursts.
PART NUMBERS
OEM Part Number: 17111742231 Alternative Part Number: 17117639022 Alternative Part Number: 17111712669 Alternative Part Number: 17111712492 Rein Part: CPE0030P

Please note: Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice

MORE DETAILS
ManufacturerRein
Made InGermany
Requried Per Car1
Fitments

Customer Reviews

Based on 138 reviews
91%
(125)
9%
(12)
0%
(0)
0%
(0)
1%
(1)
J
Jayden W. (Meredith, Victoria)
BMW 2004 318i

Fits perfect and works as intended. Thanks again Clickable for your awesome service, advice, excellent value and fast delivery. As always, a happy customer.

L
Luke S. (Brisbane, Queensland)
bmw e36 318ti 1998

parts came very quick, and work exactly as intended from oem

S
Stephen F. (Arthurs Creek, Victoria)
BMW 318i E46 M43

Fantastic service, very fast delivery, beautifully packaged
And excellent value. Very happy to recommend.

C
Colin
Location: Sydney, NSW
Vehicle: BMW E31 / E39
Delivery: 5
Quality: 5
Price: 5
Experience: 5
Review

Very good quality item -- I like Clickable's philosophy of only stocking high-quality lines of the plastic cooling components. However, theses caps do ultimately show signs of failure, so I keep a new replacement in the toolkit of each car.

C
Charlie
Location: QLD
Vehicle: BMW E46
Delivery: 5
Quality: 5
Price: 5
Experience: 5
Review

Perfect quality, good price

123

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