Genuine BMW 11427844986 Turbocharger Oil Return Line

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.

Technical Specifications

Primary Compatible Vehicle Applications Include

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.