Mercedes-Benz 2013–2021 M274 Grade C 180 BLUETEC / D 920 Cylinder Head Assy A2740904080 Class C200 C250 C260 SLC Sports Car – OEM A2740904080

Product Overview: Supplied as a complete assembly, this cylinder head directly replaces the original on M274 engines used across Mercedes-Benz models. It restores compression, valve timing and coolant sealing to original specification for workshop repair and overhaul work, and is new and pressure tested before dispatch. It is intended for replace/repair use and is a cost-effective alternative to reconditioning a damaged original head. The unit is inspected for flatness and gallery cleanliness prior to dispatch, ensuring it is ready for immediate fitment.

Key Features: Produced from high-grade aluminium alloy or cast iron and finished on modern CNC equipment, the head reproduces original deck height, valve seat angles and port dimensions. Factory-fitted valve guides and seats reduce installation time, while matched chamber volumes promote even compression and smooth combustion. Reinforced ribs around the injector or plug bosses add resistance to thermal fatigue, and the ground cam carrier ensures stable camshaft support. All internal oil and coolant galleries are cleaned, inspected and flow-checked before the head is assembled and tested. The casting is dimensionally stable and accepts original-specification gaskets, bolts and ancillary components.

Vehicle Compatibility: This cylinder head suits Grade C C 180 BLUETEC / D 2013-2021; GLC GLC 300 4MATIC 2014-; GLC GLC F-CELL 2014-; GLC GLC 350 D 4MATIC 2014-. Where a vehicle family was built with more than one engine, check the engine code and original part numbers before ordering. Coverage spans the 2000-, 2000-2019, 2000-2014, 2004-2015 model years.

Specifications: Engine code / family: M274; Material: high-grade aluminium alloy or cast iron; Size: STD; Condition: New, supplied for replace/repair use; Warranty: 12 Months; Packaging: neutral export carton.

OEM / Reference Numbers: OEM and cross-reference numbers: A2740904080, A2740106602, M274920, AL0072, 2101436. Use these with the engine code and vehicle details to verify fitment, since superseded and market-specific numbers can differ.

Applications: Serving Mercedes-Benz vehicles in passenger car, van and light truck roles, this assembly suits repair garages, engine rebuilders, fleet workshops and restoration projects. Common uses include head gasket failure repair, valve and seat replacement, overheating damage rectification and complete engine overhaul. Fitment advice is available on request.