Product Description

Genuine OEM BMW Coolant Expansion Tank / Reservoir for your 2004-2010 BMW 525i. This authentic factory part (Part Number: 17137521189-05) has been professionally removed, inspected, and verified to ensure excellent working condition. As a genuine BMW component, this expansion tank guarantees perfect fitment and reliable performance for your E60/E61 5-Series. Each part is carefully tested and photographed before shipping, then securely wrapped to ensure it arrives in the same excellent condition you see in the photos.

Save significantly compared to purchasing a new expansion tank while getting the same OEM quality and reliability. This coolant reservoir is compatible with multiple BMW 5-Series models including the 525i, 528i, 530i, 535i, and 550i (2004-2010 E60/E61 chassis). The part features durable plastic construction designed to withstand engine compartment temperatures and pressures. Cross-reference numbers include 17137521189, 10617211, and 7521189-05 for your verification. Backed by our commitment to quality, this genuine BMW part offers an economical solution without compromising on fit or function.

  • ✅ 100% tested and verified By Blackline Auto's Quality Team
  • ✅ Genuine OEM, Excellent Condition, inspected and approved
  • ✅ Easy installation

Payment, Shipping & Returns

  •  Payment Policy: We accept only online payment methods, and you can choose any of the options provided by eBay at the time of checkout. If you have any queries or if you require any clarification, please contact us through eBay messaging service.
  •  Shipping Policy: We provide Shipping worldwide to most of the countries using reputed couriers like DHL, FedEx or Aramex.
  •  International Buyers Policy: Import Duties, Taxes and charges are not included in the item price or shipping cost.
  •  Return Policy: We accept 14 days returns. Please clarify all your doubts before purchase.
  •  Handling Time: All packages are shipped within 3 working days.

Trusted by professionals, Blackline Autos supplies premium components for luxury vehicles.
Please confirm the part number before purchase. For compatibility checks or bulk orders, feel free to contact us.