BMW Cooling Water Pipe Adapter 11127810707 – Aluminum Alloy

BMW Engine Block Water Pipe Adapter – OEM Part #11127810707

Keep your BMW's cooling system running at peak efficiency with this precision-machined aluminum water pipe adapter. Engineered to OEM specifications and compatible with a wide range of BMW 1, 3, 5, 7 Series, X3, and X5 models, this direct-fit coolant pipe joint delivers superior thermal management, leak-proof sealing, and long-lasting durability — ideal for DIY mechanics and professional technicians alike.

Key Features

• High-Efficiency Aluminum Alloy Construction: Precision-machined from corrosion-resistant aluminum alloy for superior heat dissipation and stable performance under extreme engine temperatures.
• Direct-Fit OEM Design: Manufactured to exact OEM specifications (replaces part numbers 11127810707 & CH3115), ensuring a hassle-free, no-modification installation.
• Leak-Proof & Vibration Resistant: Engineered for a perfect hose seal with robust vibration resistance — keeping your cooling circuit secure on highways, during heavy towing, or on the track.
• Corrosion-Resistant Durability: Aluminum construction withstands coastal climates and harsh weather conditions without rust or degradation.
• Lightweight Design: Reduces parasitic weight while maintaining structural integrity for the long haul.
• Available in Silver & Black Finish

Specifications

Vehicle Compatibility

• BMW 328d – 2014, 2015, 2016, 2017, 2018 (Sedan, Wagon, xDrive)
• BMW 535d – 2014, 2015, 2016
• BMW 535d xDrive – 2014, 2015, 2016
• BMW 740Ld xDrive – 2015
• BMW X3 xDrive28d – 2015, 2016, 2017
• BMW X5 xDrive35d – 2014, 2015, 2016, 2017, 2018

Package Contents

• 1 × Aluminum Cooling Water Pipe Adapter (OEM #11127810707)

Notes

Please allow 1–2 cm tolerance due to manual measurement. Monitor settings may affect the displayed color — the actual product color is silver or black as selected.

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For more information on automotive cooling systems and engine maintenance best practices, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What BMW models is the 11127810707 water pipe adapter compatible with?

A: This aluminum cooling water pipe adapter (OEM #11127810707) is compatible with BMW 328d (2014–2018), BMW 535d & 535d xDrive (2014–2016), BMW 740Ld xDrive (2015), BMW X3 xDrive28d (2015–2017), and BMW X5 xDrive35d (2014–2018).

Q: Is this a direct OEM replacement or an aftermarket part?

A: This is a precision-engineered aftermarket replacement that matches OEM part number 11127810707 (also cross-references CH3115). It is manufactured to exact OEM specifications for a direct-fit installation with no modifications required.

Q: What material is this BMW coolant pipe adapter made from?

A: The adapter is crafted from high-efficiency aluminum alloy, which offers excellent heat dissipation, corrosion resistance, and a lightweight build — making it a durable long-term replacement for your BMW's cooling system.

Q: Is installation difficult for a DIY mechanic?

A: No. Thanks to its direct-fit design and precise OEM dimensions, this coolant pipe adapter can be installed without special tools or modifications. It's suitable for both professional technicians and experienced DIY enthusiasts.