Boigevis Trading (guangzhou) Co., Ltd.
                                                                                                           
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18 Years
Since 2008
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Best-selling water tanks and pipes 1712 7578 398 for BMW

Price Negotiable
Price: 11 USD
MOQ: 1pcs
Delivery Time: 5-7 work days
Brand: BOIGEVIS
Product Description
This high-demand cooling system hose with OEM reference 1712 7578 398 is one of our best-selling water tank pipes designed as a direct-fit replacement for multiple BMW models. Functioning as a vital coolant pipeline connecting the expansion tank and other cooling assemblies, it ensures smooth circulation of engine coolant, stabilises operating temperature and effectively prevents engine overheating under urban stop-and-go traffic and high-load driving conditions.
Constructed from premium multi-layer reinforced EPDM rubber material, the pipe features excellent resistance to high temperature, coolant chemical erosion, oxidation and ageing. The built-in braided reinforcement layer enhances pressure resistance, avoiding common problems such as swelling, cracking and fluid leakage after long-term use. Every interface and connector is precisely manufactured in accordance with original equipment specifications. No cutting or modification is required during installation, achieving seamless assembly and reliable sealing to stop coolant leakage at joints.
Every unit undergoes rigorous air tightness and hydraulic pressure inspection before leaving the factory to guarantee consistent quality. Favoured by auto repair shops, spare parts wholesalers and cross-border auto parts merchants, this coolant pipe balances dependable performance and competitive price. It provides a cost-effective alternative to expensive OEM original parts while maintaining comparable durability, helping vehicle owners cut down maintenance expenditure.
A defective coolant pipe will cause coolant loss, abnormal engine temperature and even lead to severe engine damage. Regular inspection and timely replacement of ageing cooling pipelines can greatly prolong engine service life. The 1712 7578 398 water tank pipe supports fast installation, effectively shortening working hours for maintenance workshops.
We keep adequate spot inventory to support retail orders and large wholesale purchases for global clients. Custom packaging solutions can be offered to satisfy diverse export requirements. For dealers engaged in European vehicle spare parts, this hot-selling BMW cooling hose is a fantastic stocking option.

Please double-check your vehicle chassis number and OEM number before purchase to confirm accurate compatibility. Our team offers professional pre-sales technical consultation and complete after-sales service, enabling our partners to gain solid competitiveness in the automotive aftermarket.


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Company Boigevis Trading (guangzhou) Co., Ltd.
Location A012, Liyuan Plaza, Yongfu Road, Yuexiu District, Guangzhou City, Guangdong Province, China
Contact Person Jack

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