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The Genuine BMW?11427844986?is an OEM Turbocharger Oil Return Line, also referred to as a drain line or oil outlet tube. This critical component is responsible for safely draining engine oil from the turbocharger's central cartridge back to the oil pan after lubrication. A functioning return line is essential to prevent oil from backing up into the turbo, which can cause seal failure, excessive smoke, and catastrophic turbocharger damage. This specific part is for the?right-side (passenger side) turbocharger on Bank 1?of BMW's high-performance V8 engines.

Choosing this genuine BMW part guarantees a?perfect fit, material compatibility, and reliability?that meets the stringent requirements of forced-induction engines, ensuring your vehicle maintains optimal performance and longevity.

Year	Make	Model	Configuration	Positions	Application Notes
2020	BMW	M550i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2020	BMW	X5	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2020	BMW	X7	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	750i	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	750i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	750Li xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	Alpina B7	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	M550i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	X5	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	X6	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2019	BMW	X7	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	750i	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	750i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	750Li xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	Alpina B7	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	M550i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	M6	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	X5	V8 4.4L (4395cc); M Edition Black Fire Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	X5	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2018	BMW	X6	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	750i	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	750i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	750Li xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	Alpina B7	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	M6	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	X5	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2017	BMW	X6	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	750i	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	750i xDrive	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	M5	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	M6	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	M6 Gran Coupe	V8 268 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	X5	V8 268 4.4L (4395cc); M Sport Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	X5	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2016	BMW	X6	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	M5	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	M6	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	M6 Gran Coupe	V8 268 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	X5	V8 268 4.4L (4395cc); M Sport Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	X5	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2015	BMW	X6	V8 4.4L (4395cc); M Submodel	Return (Right)	Cylinders 1, 2, 3, and 4
2014	BMW	M5	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2014	BMW	M6	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2014	BMW	M6 Gran Coupe	V8 268 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4
2014	BMW	M6 Gran Coupe	V8 4.4L (4395cc)	Return (Right)	Cylinders 1, 2, 3, and 4

Technical Specifications

Specification Category	Details
Part Name	Turbocharger Oil Return Line / Drain Line / Outlet Tube
Manufacturer	Genuine BMW
Part Number	11427844986 (Also listed as 11 42 7 844 986)
Condition	New
Position on Vehicle	Right Side (Passenger Side) / Bank 1
Replaces/Supersedes	Part number?11 42 7 589 095?(11427589095)
Item Weight	Approximately 0.70 lbs (0.32 kg)

Primary Compatible Vehicle Applications Include

Model Series	Key Models (Years)	Engine
5 Series	F10 M5 (2013-2016), G30 M550i xDrive (2018-2019)	S63TU, N63R
6 Series	F12/F13 M6, F06 M6 Gran Coupe (2012-2019)	S63TU
7 Series	G12 750i / 750i xDrive, Alpina B7 (2016-2020)	N63R/TU
X5	E70 X5 M, F85 X5 M, G05 X5 xDrive50i/M50i (2010-2020)	S63, S63TU, N63R
X6	E71 X6 M, F86 X6 M (2010-2019)	S63, S63TU
X7	G07 X7 xDrive50i/M50i (2019-2020)	N63R

Q: Do you provide installation guidance for brake system work?

Yes. We offer comprehensive technical sheets with torque values, bleeding procedures, and access to our technical support team for complex installations.

Q: Why choose your replacement over cheaper alternatives?

Our tubes use certified CuNiFe material that will not rust internally, while many budget options use coated steel that corrodes from inside out. The safety difference is significant.

Q: Can I repair just the corroded section of brake line?

No. Industry safety standards require complete tube replacement between fittings. Partial repairs create weak points and compromise system integrity.

Q: What is your typical lead time for production and shipment?

For this specific part, we can often ship sample or small orders within 7-10 days. For larger production runs, the standard lead time is 30-35 days after order confirmation and deposit receipt.

Q: What is your Minimum Order Quantity (MOQ)?

We offer flexible MOQs to support new business. For this standard OE part, the MOQ can be as low as 50 pieces. Custom parts may have different requirements.

Q: Do you offer samples for quality verification?

Yes, we encourage potential partners to test our product quality. Samples are available for a modest cost. Contact us to arrange a sample order.

Q: Are you a factory or a trading company?

We are a?manufacturing factory?(NINGBO JIATIAN AUTOMOBILE PIPE CO., LTD.) with IATF 16949 certification. This means we produce the parts ourselves, ensuring quality control and competitive pricing.

About JIATIAN

As a Genuine BMW 11427844986 Turbocharger Oil Return Line suppliers and Genuine BMW 11427844986 Turbocharger Oil Return Line company, The company is located in Wanhou, Zhanqi Town, Yinzhou District, Ningbo City. It is 25 kilometers away from Ningbo Liushi Airport and 5 kilometers away from Ningbo Coastal Industrial Zone. The surrounding area is beautiful with convenient transportation. The company was established on the basis of the development of Ningbo Xingxin Metal Products Factory (established in 1995), and is a high-tech enterprise specializing in the production of automotive pipe fittings. The company's area is 32,000 square meters; the factory area is 26,000 square meters.

The main products of the company are: manufacturing and development of automotive corrugated pipes. Currently, there are 10 CNC fully automatic pipe bending machines, 2 large-scale brazing furnaces assembly lines, 10 various specifications hydraulic internal forming machines (with the maximum processing length of 1.5 meters and diameters ranging from ￠10 to ￠80), 1 800T hydraulic water expansion machine, 4 fully automatic laser welders, 4 sets of welding robots, 8 large-scale machining centers, 6 Panasonic arc welding machines, and over 30 various supporting pipe forming machines. The company has its own R&D and processing centers. The water expansion corrugated pipe equipment and technology of the company are currently at the industry leading level. A comprehensive laboratory has been established.

The company is committed to creating the world's leading automotive bellows with outstanding quality and innovative technology, ensuring that each product can perform well in various environments and promoting the progress of the industry.

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