Mercedes‑Benz A0199970545 Oil Cooler O‑Ring / Seal

Description

The part number A0199970545 (also formatted A 019 997 05 45) is a genuine Mercedes‑Benz O‑ring / seal ring used in the engine’s oil cooler or adjacent housing systems.

• The part is listed in multiple parts suppliers as an O‑ring sized 21 × 3.4 mm, for the oil cooler housing. PartSouq+1

• It appears in catalogs under the description “Gasket set, seal, housing OE number by Mercedes‑Benz.” Spareto

• Also used in fitments such as the ML W166 engine oil filter adapter / oil filter housing for Mercedes-Benz. eBay+1

• The part number is confirmed by various parts‑listing sites as exactly A0199970545. mercteil.com

Compatibility/Usage Note:

• Brand: Mercedes‑Benz

• Part Number: A0199970545

• Application: O‑ring / seal ring for oil‑cooler housing / oil‑filter adapter / engine oil system

• Fitment example: Mercedes-Benz ML W166 (among others) listed in the part description. eBay

• As with all sealing components, check the vehicle’s VIN, engine code and exact housing variant to ensure correct fitment.