
Air Intake Hose Pipe for BMW OEM 13711438471
- 13711438471
- Ref WJ-H0393
Air Intake Hose for BMW, catalogued against OEM 13711438471, internal reference WJ-H0393, moulded in PA66 glass-filled nylon. Serves the air intake tract.
Product Overview
Air Intake Hose Pipe for BMW OEM 13711438471 covers the air intake tract on BMW applications. The reference set on file is OEM 13711438471, which is the figure to quote when you send an enquiry. In service the part carries filtered air from the airbox to the turbocharger inlet or throttle body. When it fails it usually shows cracks around moulded sensor ports and hardened cuffs that no longer seal on the airbox spigot, and the driver sees unmetered air downstream of the mass airflow sensor, a rough idle and airflow fault codes. 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
- 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 bellows pitch, the connector geometry and the sensor port position — the dimensions that put a part back in the box if they are wrong.
- Matched to how the part actually fails — Cracks around moulded sensor ports and hardened cuffs that no longer seal on the airbox spigot are the reasons this reference is bought, so those are the features checked before packing.
- Export packing as standard — The range ships to Europe, the Middle East and South America, so cartons are packed for long sea legs rather than for a local van run.
Application Scenarios
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. On this reference that means quoting 13711438471 with the quantity and letting the packing follow.
Rebuild of an obsolete platform
The original reference is no longer produced, so the part is made from a supplied sample. For 13711438471 the practical step is confirming the bellows pitch, the connector geometry and the sensor port position before the order is placed.
Mixed container for a distributor
A quarterly container is filled across families — intake, charge air, coolant and thermostat lines — to a single packing list. On this reference that means quoting 13711438471 with the quantity and letting the packing follow.
Who It Is For
- Radiator and cooling specialists — rebuilding cooling systems and sourcing the hoses, flanges and housings for a platform in one go. For them 13711438471 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. 13711438471 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. What they need from 13711438471 is that it fits the BMW on the ramp today.
Problems It Solves
Unclear compound
PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens. For BMW buyers it is the difference between a stocked line and a credit note on 13711438471.
Reference mismatch
Visually identical parts carry different connector geometry between model years. Quoting OEM 13711438471 fixes the identity before money moves. With 13711438471 the check is the bellows pitch, the connector geometry and the sensor port position, and it happens before despatch.
Split ordering
Sourcing one hose from one supplier and the matching flange from another doubles the freight and the paperwork for the same repair. On 13711438471 that is settled before the quotation goes out.
Technical Features
The part serves the air intake tract and carries filtered air from the airbox to the turbocharger inlet or throttle body. 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
| Part family | Air Intake Hose |
|---|---|
| Vehicle make | BMW |
| OEM cross references | 13711438471 |
| Woojin reference | WJ-H0393 |
| Material | PA66 glass-filled nylon |
| Circuit | Air intake tract |
| Catalogue group | Air Intake Hoses and Pipes |
| Dimensions | TBC not published on the source site — confirmed per enquiry |
| Weight and carton count | TBC confirmed on the quotation |
| Minimum order quantity | TBC confirmed per reference |
| Certification documents | TBC available on request by email |
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
| Option | What you get | What it costs you |
|---|---|---|
| Dealer original part | Guaranteed identity and dealer warranty. | Highest unit price and a supply chain you do not control. |
| Universal hose cut to length | Cheap and available anywhere. | No moulded connector geometry, so it will not seal on the bellows pitch. |
| Unreferenced aftermarket part | Low price on paper. | No OEM cross reference means no way to confirm fitment before the box is opened. |
| This reference | Catalogued against OEM 13711438471, internal reference WJ-H0393, packed for export. | Ordered by the carton rather than the piece. |
Use Guide
Confirm the reference
Match OEM 13711438471 against the number on the part you removed. Do not match on outline alone.
Check the interfaces
Compare the bellows pitch, the connector geometry and the sensor port position before the vehicle is stripped further.
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.
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 13711438471 rather than carrying the old one over.
Pressure check before handover
Refill, bleed the circuit and check for splits along the convolutions at working temperature before the vehicle leaves.
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Air Intake Hose Pipe for BMW OEM 13711438471 — Questions Before You Order
What OEM references does this part cross to
It is catalogued against OEM 13711438471. Our internal reference is WJ-H0393, which is the number to quote on repeat orders. If your reference is not on the list, send it with the vehicle details and we will check it against the range.
Why is this part made in PA66
Because glass-filled PA66 gives a rigid pipe that holds its shape against vibration and keeps clamp faces dimensionally stable at under-bonnet temperature. PA66 mouldings crack rather than weep, so a hairline split can empty a coolant system quickly once it opens.
What is the minimum order quantity and the price
MOQ and price depend on the reference and the quantity mix, and are confirmed per enquiry rather than published. Email [email protected] with the reference and the quantity you need and you get a written quotation with packing details.
Can you supply a part that is not listed on this site
Yes. The range runs to more than 4000 types and not all of it is published. Send the OEM reference, or the old part or a drawing, and we quote from the sample — including mould development where the tooling no longer exists.
How is the part packed for export
Parts ship in cartons marked with the reference, packed for sea freight to Europe, the Middle East and South America. Carton counts and dimensions are confirmed on the quotation so you can plan the container load.
How do I check the part fits before fitting it to the vehicle
Compare the bellows pitch, the connector geometry and the sensor port position against the part you removed. Those are the features that decide fitment on this family; a match on outline alone is not enough.
What certifications do you hold
Certification documents are not published on this site. Ask for the current documentation by email with your market in mind and we will send what applies to the reference you are buying.
Price Air Intake Hose Pipe for BMW OEM 13711438471
Quote OEM 13711438471 with your quantity and the written quotation comes back with packing and carton details.


