| Brand | Unbranded |
| Manufacturer | Unbranded |
| Model Number | 11118511205 |
Water Pipe Connector / Coolant Outlet Pipe (Engine Block to Upper Radiator Hose) BMW OEM / Part Number: 11118511205 (BMW format: 11 11 8 511 205) The BMW 11118511205 is a coolant outlet pipe / water pipe connector that mounts at the engine block and connects coolant flow toward the upper radiator hose.
Its a critical cooling-system junction piece designed to maintain proper coolant routing and sealing under heat and pressure. What it does (Function) Routes coolant from the engine block outlet to the upper radiator hose circuit Maintains coolant flow integrity and helps prevent leaks at a high-stress connection point Ensures stable operating temperature by preventing coolant loss/air ingress Key features & benefits Direct replacement for BMW OEM specification (correct geometry and connection points) Commonly supplied as the plastic coolant outlet pipe assembly for the application (OEM design) Many listings note a new gasket/seal included for proper reseal during replacement (confirm per supplier/brand) Helps restore cooling-system reliability where older connectors become brittle/age-affected Symptoms of a failing connector (When to replace) Visible coolant seepage/leak around the outlet/connector area Coolant smell, low coolant warnings, or frequent top-ups Overheating or temperature fluctuations (especially under load) Cracking/brittleness at the connector or flange (common on aging plastic cooling parts) Vehicle fitment (Applications) This part is widely cataloged for BMW models using B46/B48-family configurations in multiple chassis.
Examples commonly listed include: BMW F30 / F31 / F34 (3 Series variants) BMW F32 / F33 / F36 (4 Series variants) BMW G12 (7 Series variants shown in aftermarket fitment lists) BMW F48 / F39 / G30 / G01 / G02 are also frequently referenced for the same part number in catalogs About your requested chassis list (F30 / F35 / G12 / F49): F30 and G12 are commonly associated with 11118511205 in multiple catalogs.
F35 and F49 can be market/engine dependent. The safest professional practice is to confirm by VIN / engine code (B46/B48) before sale to avoid mismatch. Specifications (Professional listing data) Part name (common): Coolant Outlet Pipe / Water Pipe Connector / Engine Block Connector Pipe OEM number: 11118511205 / 11 11 8 511 205 System: Engine Cooling System Placement: Engine block coolant outlet upper radiator hose circuit Brand options: Genuine BMW (OEM) Aftermarket equivalents (some suppliers offer upgraded aluminum versions to address plastic brittleness)
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