Rein BMW Coolant Expansion Tank With Cap EPK0131

BMW Coolant Expansion Tank With Cap

The coolant expansion tank provides a place for excess coolant to flow as temperatures rise and fall. Because it constantly endures extreme temperature changes, it’s prone to cracking or breaking over time. Keeping coolant contained within the system is essential, so if your tank shows signs of damage—such as cracks, broken nipples, or compromised mounting points—it’s time for a replacement.
Rein Rein
T#: 46616007 | Part#: EPK0131
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99.29
SALE: $99.29 (5% OFF)
WAS: $104.99 on 08-31-2026

This product was last offered at the strikethrough price on
08-31-2026

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Rein BMW Coolant Expansion Tank With Cap EPK0131
BMW Coolant Expansion Tank With Cap
$99.29
The coolant expansion tank provides a place for excess coolant to flow as temperatures rise and fall. Because it constantly endures extreme temperature changes, it’s prone to cracking or breaking over time. Keeping coolant contained within the system is essential, so if your tank shows signs of damage—such as cracks, broken nipples, or compromised mounting points—it’s time for a replacement.
Prop 65 WarningProp 65 Warning

Cross Reference
  • 17137640515
  • EPK0131

Product Q&A

Lifetime Replacement

This product is not eligible for Lifetime Replacement
MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW E82 135i N55 3.0L Use vehicle selector to confirm fitment
BMW E88 135i N55 3.0L Use vehicle selector to confirm fitment
BMW E90 335i N55 3.0L Use vehicle selector to confirm fitment
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*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.