Radiator Coolant Hose for BMW OEM 17127593490

Product Overview

This Radiator Hose is supplied for BMW applications and is catalogued against OEM 17127593490. Matching starts from the reference rather than from a picture, which is what keeps a container of parts out of the returns pile. This part carries coolant between the engine outlet and the radiator on the upper and lower legs of the loop. The failure modes that bring it across a parts counter are ballooning under pressure and hardened ends that will not re-seal after removal, reported as overheating on long runs, pressure loss in the expansion tank and visible coolant traces. We hold it as part of a cooling-system range of more than 4000 types built for the independent aftermarket in Europe, the Middle East and South America.

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.
• Inspection before despatch — Parts are inspected before they leave, which for this family means checking the sealing faces and the connector geometry that decide whether it fits.
• Built for the duty of the main cooling loop — The part carries coolant between the engine outlet and the radiator on the upper and lower legs of the loop, 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.

Application Scenarios

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. For 17127593490 the practical step is confirming the overall developed length, the bend sequence and the branch positions before the order is placed.

Warranty-expired fleet maintenance

A fleet past dealer coverage moves to independent supply and needs the same reference coverage at a working price. For 17127593490 the practical step is confirming the overall developed length, the bend sequence and the branch positions before the order is placed.

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 17127593490 the practical step is confirming the overall developed length, the bend sequence and the branch positions before the order is placed.

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 order 17127593490 by the carton and reorder against the same number.
• Radiator and cooling specialists — rebuilding cooling systems and sourcing the hoses, flanges and housings for a platform in one go. They judge 17127593490 on one thing: whether it matches the part that came off.
• Exporters and consolidators — shipping mixed cooling-system pallets into Europe, the Middle East and South America. They order 17127593490 by the carton and reorder against the same number.

Problems It Solves

Returns from wrong fitment

Every returned part costs the freight twice. Checking the overall developed length, the bend sequence and the branch positions before despatch is cheaper than a credit note. With 17127593490 the check is the overall developed length, the bend sequence and the branch positions, and it happens before despatch.

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 17127593490 that is settled before the quotation goes out.

Unclear compound

EPDM hardens once it has been heat-cycled past its service window, so a replacement that has sat in a hot warehouse for years is not a bargain. For this radiator hose the answer is the reference, 17127593490, on every document.

Technical Features

The part serves the main cooling loop and carries coolant between the engine outlet and the radiator on the upper and lower legs of the loop. It is moulded in EPDM rubber, chosen because EPDM keeps its elasticity through repeated heat cycles and resists ozone, water and weathering, which makes it the workhorse wall compound for moulded engine-bay lines.

Specified where the part has to stay flexible over thousands of heat cycles rather than hold a fixed shape. EPDM hardens once it has been heat-cycled past its service window, so a replacement that has sat in a hot warehouse for years is not a bargain.

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 17127593490 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the overall developed length, the bend sequence and the branch positions before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. EPDM hardens once it has been heat-cycled past its service window, so a replacement that has sat in a hot warehouse for years is not a bargain.

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 17127593490 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for ballooning under pressure at working temperature before the vehicle leaves.