Bevinsee Reinforced Silicone Upper Radiator Hose w/ Aluminum Flange - BMW E9x E8x (N52)

Eliminate the infamous factory upper radiator hose flaw once and for all.

On BMW E8x and E9x models with the N52 engine, the upper radiator hose (connecting the engine to the radiator and expansion tank line) suffers from a major design flaw. The factory plastic quick-connectors and T-junctions dry out, become extremely brittle, and snap easily during maintenance or aggressive driving. This results in sudden coolant loss and severe engine overheating.

The Bevinsee Upper Radiator Hose Repair Kit replaces these fragile plastic fittings with a CNC-machined 6061 billet aluminum flange and a triple-layer reinforced silicone hose. Engineered to withstand extreme heat and pressure, this upgrade delivers 100% peace of mind under the hood.

Why upgrade to this Bevinsee Upper Hose Kit:

• 6061 Billet Aluminum Flange: Replaces the failure-prone factory plastic connector with an ultra-durable anodized aluminum fitting that will never crack or warp.

• Triple-Layer Reinforced Silicone: Built to handle high pressure (up to 3 bar) and extreme engine temperatures. Formulated with an anti-aging compound to stay flexible for years.

• Upgraded Stainless Steel Clamps Included: Comes with high-torque stainless clamps for a leak-free seal (replacing non-reusable single-use factory clamps).

• OEM+ Engine Bay Upgrade: Say goodbye to cheap-looking, faded plastic/rubber lines with a sleek, high-performance silicone look.

• Direct OEM Replacement: Directly replaces BMW OEM part number 17127531579 (17 12 7 531 579).

Technical Specifications:

• Brand: BEVINSEE

• Material: 6061 Anodized Aluminum Alloy, Triple-Layer Silicone & Stainless Steel

• Position: Hose from Engine to Radiator

Compatibility:

• BMW 3-Series (2005–2011): E90 / E91 / E92 / E93 – 323i, 325i, 328i, 330i (N52 engine)

• BMW 1-Series (2005–2013): E81 130i, E82 125i/128i, E87 130i, E88 125i/128i

• BMW X1 (2009–2011): E84 – 25iX, 28iX (N52 engine)