Mahle 55378 Engine Cylinder Head Gasket - Right

Engine Cylinder Head Gasket for Mercedes-Benz V8

Mahle 55378 is a right-side engine cylinder head gasket for select Mercedes-Benz V8 applications. It is built for dependable sealing performance where cylinder head integrity is critical, including Mercedes-Benz SL550, CLS550, E550, S550, GL550, CL550, GL450, and ML550 fitments.

Mahle sealing products are used by OEMs and technicians worldwide for engine repair work that demands accurate fit and consistent sealing. This part cross-references Mercedes-Benz 278 016 05 20 for the same application.

Key Features

• Engine cylinder head gasket for the right side
• Mahle part number 55378
• OE-style sealing solution for select Mercedes-Benz V8 engines
• Multi-layered steel gasket design noted for proper installation requirements
• Direct fitment for multiple Mercedes-Benz models from 2011-2019

Detailed Description

Mahle 55378 is an engine cylinder head gasket engineered for the right side of select Mercedes-Benz vehicles. It is used in applications where the cylinder head must maintain a precise seal against combustion pressure, coolant passages, and oil flow. For buyers searching for a Mercedes-Benz SL550 right cylinder head gasket, CLS550 right head gasket, or E550 engine gasket replacement, this part matches the listed applications and OE reference 278 016 05 20.

Compatible With 2013-2019 Mercedes-Benz SL550, right; 2012-2018 Mercedes-Benz CLS550, right; 2012-2017 Mercedes-Benz E550, right; 2012-2017 Mercedes-Benz S550, right; 2013-2016 Mercedes-Benz GL550, right; 2011-2014 Mercedes-Benz CL550, right; 2013-2014 Mercedes-Benz GL450, right; and 2012-2014 Mercedes-Benz ML550, right.

What It Helps Fix

• Coolant loss caused by a failed cylinder head seal
• Oil seepage between the head and engine block
• Compression loss from a damaged head gasket
• Combustion leakage that can affect engine performance
• Repeat sealing issues during Mercedes-Benz engine repair

Installation Notes

Replacement of cylinder head bolts is necessary for proper installation of this multi-layered steel gasket. Confirm right-side placement and verify engine code, model year, and OE number before installation. Clean mating surfaces thoroughly and follow factory torque procedures during assembly.

Quality Assurance

Mahle sealing products are trusted by OEMs and professional technicians for engine repair applications. Mahle 55378 is built to meet the sealing demands of the listed Mercedes-Benz models and supports OE-referenced service work.