This separate plastic tee repairs the Mercedes-Benz coolant hose assembly A2125013925 / 2125013925. The tee connects the coolant lines and can be replaced separately when its body or a hose nipple is damaged and the remaining hose is serviceable. The assembly is also described as an upper expansion tank hose or coolant pipe.
When to Inspect the Part
- Coolant leak near hose A2125013925
- Cracked plastic tee body
- Broken or damaged hose nipple
- Dried coolant residue around the connection
- Falling coolant level in the expansion tank
- Hose is serviceable but the tee leaks
Compatible Applications
- Mercedes-Benz E-Class E 180 L – 212.133
- Mercedes-Benz E-Class E 200 – 212.234
- Mercedes-Benz E-Class E 250 – 212.236
- Mercedes-Benz E-Class E 200 L – 212.134
- Mercedes-Benz E-Class E 260 L – 212.136
- Mercedes-Benz E-Class E 180 – 212.040
- Mercedes-Benz E-Class E 250 – 212.036
- Mercedes-Benz E-Class E 200 – 212.034
- Mercedes-Benz CLS 250 – 218.936
- Mercedes-Benz CLS 250 – 218.336
Important Fitment Check
A2125013925 is the reference for the complete coolant hose assembly, not a separate OEM number for this tee. This listing is the separate repair connector; the hose is not included. Compare the tee shape, outlet positions and installed hose reference before ordering.
FAQ
What is included?
The separate plastic coolant hose tee repair connector. The complete hose is not included.
Is A2125013925 the tee OEM number?
No. It identifies the complete hose assembly containing the tee.
Why replace the tee separately?
If the hose and other components are serviceable, only the damaged connector needs to be replaced.
Does it fit Mercedes-Benz E-Class W212?
It is intended to repair hose A2125013925 on the listed E-Class 212 applications. Confirm the installed hose and connector.
Part Number / PN
A2125013925, 2125013925, A212 501 39 25, 212 501 39 25
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Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings