Coolant Water Flange Pipe for BMW OEM 11531714738

Product Overview

This Water Flange is supplied for BMW applications and is catalogued against OEM 11531714738. Matching starts from the reference rather than from a picture, which is what keeps a container of parts out of the returns pile. In service the part joins several coolant lines at the cylinder head and usually carries the temperature sensor and its seals. When it fails it usually shows hairline cracks in the moulding and warped mating faces, and the driver sees a coolant drip at the head, low coolant warnings and an intermittent temperature signal. 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

• Ordered by reference not by photo — The listing carries OEM 11531714738. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.
• Mixed pallets instead of single lines — A cooling-system range of more than 4000 types means a slow-moving line can travel with fast movers instead of being ordered on its own.
• Tooling route for obsolete references — Where the reference is out of production, we develop the mould from the sample you supply rather than turning the enquiry away.
• 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.

Application Scenarios

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. With 11531714738 on the list the rest of the coolant distribution point can be priced at the same time.

Counter stock for a busy platform

BMW volume in the region justifies holding the line on the shelf instead of ordering it in per job. For 11531714738 the practical step is confirming the port count, the bolt pattern and whether the sensor and seals are included before the order is placed.

Breakdown repair

The vehicle is off the road and the part has to be right the first time, which makes the reference match the whole decision. Here the water flange is ordered against 11531714738 and travels with the rest of the BMW branch.

Who It Is For

• Fleet and bus operators — running BMW vehicles past warranty and buying cooling-system parts by the box to keep downtime short. They judge 11531714738 on one thing: whether it matches the part that came off.
• Radiator and cooling specialists — rebuilding cooling systems and sourcing the hoses, flanges and housings for a platform in one go. For them 11531714738 is a line on a shelf, not a project.
• Exporters and consolidators — shipping mixed cooling-system pallets into Europe, the Middle East and South America. They judge 11531714738 on one thing: whether it matches the part that came off.

Problems It Solves

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. With 11531714738 the check is the port count, the bolt pattern and whether the sensor and seals are included, and it happens before despatch.

Unclear compound

PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens. On 11531714738 that is settled before the quotation goes out.

Reference mismatch

Visually identical parts carry different connector geometry between model years. Quoting OEM 11531714738 fixes the identity before money moves. For BMW buyers it is the difference between a stocked line and a credit note on 11531714738.

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 11531714738 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 11531714738 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.