Velt Sport Coolant Return Line Flange - BMW / B48 / G30 / G11 / G12

Upgrade a common failure point in your BMW cooling system with the Velt Sport Coolant Return Line Flange, designed for B48-powered vehicles including G30 530i, G11 740i, and G12 740i models. This high-quality aluminum coolant hose flange replaces the factory plastic component, improving durability, reliability, and long-term cooling system performance.

Eliminate the Factory Plastic Weak Point

The factory coolant return flange is prone to cracking and failure over time due to repeated heat cycles and pressure. The Velt Sport aluminum replacement provides a stronger and more dependable solution, helping to prevent coolant leaks and reduce the risk of overheating.

Built for Strength and Longevity

Constructed from high-quality aluminum, this coolant flange is engineered to withstand harsh engine bay conditions. It offers improved resistance to heat and pressure, making it an ideal upgrade for both daily drivers and performance-oriented builds.

Direct Fit Replacement

Designed for precise OEM-style fitment, this coolant return line flange installs in place of the factory unit with no modifications required. It is a simple and effective upgrade for preventative maintenance or repair.

Key Features:

• Designed for BMW B48 engines
• Fits G30 530i, G11 740i, and G12 740i models
• Replaces failure-prone factory plastic coolant return flange
• Helps prevent coolant leaks and overheating issues
• Durable aluminum construction for long-term reliability
• Direct fit installation with no modifications required
• Lifetime warranty for peace of mind

OE part #


17-12-8-602-870 / 17 12 8 602 870 / 17128602870


MFR Part # VELT-ENG-0057