Turner Motorsport Stainless Steel Braided Oil Supply Line - High-Pressure Turbocharger (11427795971)
BMW’s M57 twin-turbo diesel uses its two turbos in stages. A small high-pressure turbo gives quick response at low RPM, and a larger low-pressure turbo takes over for top-end power. The oil line that feeds the high-pressure turbo runs right next to the exhaust manifold, which makes it one of the hottest places on the engine. After enough heat cycles, the factory rubber hose sections get brittle and crack, and the crimped fittings start to leak. You may see oil dripping onto hot exhaust parts, smell burning oil inside the car, or notice smoke from under the hood. If the leak is left alone, the turbo bearings can run short on oil and fail. Our braided supply line fixes this weak spot with a tough PTFE stainless steel line built to take the heat for good.
From the factory, this line is steel tubing joined by rubber flex sections, with an aluminum heat sleeve that holds onto oil once a leak starts. We replace the rubber with a PTFE inner hose wrapped in stainless steel braid. PTFE holds up to heat and oil far better than rubber, and the braid protects against bursts and abrasion. On top of that, a black PVC shell keeps the braid from rubbing against nearby lines and wiring, and it keeps the factory look under the hood. Our line comes with new banjo bolts and copper crush washers. It fits in the factory location with no modifications required.
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M57 Oil Lines Kit
Stop hot-side oil leaks at the source with this complete kit featuring heavy-duty replacement supply lines, featuring durable PTFE and stainless steel construction.
Product Details
BMW’s M57 twin-turbo diesel uses its two turbos in stages. A small high-pressure turbo gives quick response at low RPM, and a larger low-pressure turbo takes over for top-end power. The oil line that feeds the high-pressure turbo runs right next to the exhaust manifold, which makes it one of the hottest places on the engine. After enough heat cycles, the factory rubber hose sections get brittle and crack, and the crimped fittings start to leak. You may see oil dripping onto hot exhaust parts, smell burning oil inside the car, or notice smoke from under the hood. If the leak is left alone, the turbo bearings can run short on oil and fail. Our braided supply line fixes this weak spot with a tough PTFE stainless steel line built to take the heat for good.
From the factory, this line is steel tubing joined by rubber flex sections, with an aluminum heat sleeve that holds onto oil once a leak starts. We replace the rubber with a PTFE inner hose wrapped in stainless steel braid. PTFE holds up to heat and oil far better than rubber, and the braid protects against bursts and abrasion. On top of that, a black PVC shell keeps the braid from rubbing against nearby lines and wiring, and it keeps the factory look under the hood. Our line comes with new banjo bolts and copper crush washers. It fits in the factory location with no modifications required.
Features:
- PTFE stainless steel braided line with a protective black PVC shell
- Direct fit design: installs in factory location with no modifications required
- PTFE inner hose resists heat, oil breakdown, and hardening
- Includes new banjo bolts and copper O-rings
- Feeds the high-pressure (small) turbocharger
- Replaces OE part number 11427795971
Product Development:
Our Stainless Steel Braided Oil Supply Line was designed, engineered, tested, and quality inspected by our Research & Development team. Our development process includes leading-edge product technology: FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.
Prop 65 Warning
- 11427795971
Frequently Purchased Together
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Turner Motorsport Stainless Steel Braided Oil Supply Line - Low-Pressure Turbocharger (11427795972)
In Stock- MFG Part#
- 058903LA02
- T#
- 46272261
- Brand
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$101.99