Radiator Hose for Mercedes-Benz OEM 1645004875

Product Overview

This Radiator Hose is supplied for Mercedes-Benz applications and is catalogued against OEM 1645004875. 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 carries coolant between the engine outlet and the radiator on the upper and lower legs of the loop. When it fails it usually shows collapse of the lower leg at high rpm and chafing where the hose crosses the fan shroud, and the driver sees overheating on long runs, pressure loss in the expansion tank and visible coolant traces. The part belongs to a cooling-system catalogue of more than 4000 types, which is the practical reason buyers consolidate a mixed pallet with us rather than splitting it across suppliers.

Key Benefits

• 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.
• Ordered by reference not by photo — The listing carries OEM 1645004875. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.
• Consolidate the platform in one order — Hoses, flanges and thermostat housings for the same platform ship on one pallet, which shortens the paperwork and the freight bill.
• Sample-based production for parts not yet listed — Send the old part or a drawing and we quote from the sample, including mould development where no tool exists.

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. Here the radiator hose is ordered against 1645004875 and travels with the rest of the Mercedes-Benz branch.

Counter stock for a busy platform

Mercedes-Benz volume in the region justifies holding the line on the shelf instead of ordering it in per job. On this reference that means quoting 1645004875 with the quantity and letting the packing follow.

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. With 1645004875 on the list the rest of the main cooling loop can be priced at the same time.

Who It Is For

• Aftermarket distributors — stocking cooling-system lines for Mercedes-Benz across a regional network and needing a reference-accurate catalogue behind the shelf. They judge 1645004875 on one thing: whether it matches the part that came off.
• Workshop and fast-fit chains — replacing radiator hoses on Mercedes-Benz daily and judging a supplier on whether the part fits first time. They judge 1645004875 on one thing: whether it matches the part that came off.
• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. They judge 1645004875 on one thing: whether it matches the part that came off.

Problems It Solves

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. That is why 1645004875 carries its full cross-reference set on this page.

Reference mismatch

Visually identical parts carry different connector geometry between model years. Quoting OEM 1645004875 fixes the identity before money moves. With 1645004875 the check is the overall developed length, the bend sequence and the branch positions, 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. That is why 1645004875 carries its full cross-reference set on this page.

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 1645004875 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 Mercedes-Benz platform was designed around, and fit any seal or O-ring supplied with 1645004875 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.