Coolant Water Flange Pipe for BMW OEM 11118511205

Product Overview

Coolant Water Flange Pipe for BMW OEM 11118511205 covers the coolant distribution point on BMW applications. The reference set on file is OEM 11118511205, which is the figure to quote when you send an enquiry. Because the part joins several coolant lines at the cylinder head and usually carries the temperature sensor and its seals, a worn one rarely fails cleanly — expect leaking O-ring grooves and hairline cracks in the moulding long before it separates, with a coolant drip at the head, low coolant warnings and an intermittent temperature signal as the first complaint over the counter. Hunan Woojin Autoparts supplies it from a cooling-system range of more than 4000 types covering German, French, Japanese, American and Korean vehicles.

Key Benefits

• Checked on the features that matter — Inspection concentrates on the port count, the bolt pattern and whether the sensor and seals are included — the dimensions that put a part back in the box if they are wrong.
• Built for the duty of the coolant distribution point — The part joins several coolant lines at the cylinder head and usually carries the temperature sensor and its seals, so the compound and the wall construction are matched to that circuit rather than to a generic hose spec.
• Aftermarket buyers, not one-off retail — Pricing and packing are set up for distributors and workshop chains buying by the carton, not for single-piece retail.
• One reference set on every document — OEM 11118511205 appears on the quotation, the packing list and the carton label, so a warehouse can check a delivery without opening the box.

Application Scenarios

Mixed container for a distributor

A quarterly container is filled across families — intake, charge air, coolant and thermostat lines — to a single packing list. This reference, 11118511205, is bought for exactly that situation on BMW vehicles.

Scheduled cooling-system overhaul

The vehicle is in for a coolant leak and the workshop replaces the whole branch at once rather than chasing the next failure in a month. On this reference that means quoting 11118511205 with the quantity and letting the packing follow.

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. On this reference that means quoting 11118511205 with the quantity and letting the packing follow.

Who It Is For

• Exporters and consolidators — shipping mixed cooling-system pallets into Europe, the Middle East and South America. 11118511205 earns its shelf space through repeat demand on BMW platforms.
• Aftermarket distributors — stocking cooling-system lines for BMW across a regional network and needing a reference-accurate catalogue behind the shelf. 11118511205 earns its shelf space through repeat demand on BMW platforms.
• Workshop and fast-fit chains — replacing water flanges on BMW daily and judging a supplier on whether the part fits first time. They judge 11118511205 on one thing: whether it matches the part that came off.

Problems It Solves

Parts that are no longer produced

When the original reference is dropped, the repair still exists. Sample-based production and mould development keep the line alive. For this water flange the answer is the reference, 11118511205, on every document.

Returns from wrong fitment

Every returned part costs the freight twice. Checking the port count, the bolt pattern and whether the sensor and seals are included before despatch is cheaper than a credit note. That is why 11118511205 carries its full cross-reference set on this page.

Long lead times on slow movers

A slow line ordered alone waits for a container. Consolidated with fast movers it travels on the same shipment. On 11118511205 that is settled before the quotation goes out.

Technical Features

The part serves the coolant distribution point and joins several coolant lines at the cylinder head and usually carries the temperature sensor and its seals. It is moulded in PA66 glass-filled nylon, chosen because glass-filled PA66 gives a rigid pipe that holds its shape against vibration and keeps clamp faces dimensionally stable at under-bonnet temperature.

Used where the part must hold a fixed geometry and carry bolted or clipped interfaces. PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM 11118511205 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the port count, the bolt pattern and whether the sensor and seals are included before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens.

4. Fit with the original clamp style

   Reuse the clamp type the BMW platform was designed around, and fit any seal or O-ring supplied with 11118511205 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for hairline cracks in the moulding at working temperature before the vehicle leaves.