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Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
  1. Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
  2. Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
  3. Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
  4. Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)
  5. Mercedes-Benz M278 Overhaul Kit (4.6L / 4.7L)

Engine Gasket & Seal Overhaul Rebuild Kit for Mercedes-Benz M278 4.6L / 4.7L V8 Engines

The Mercedes-Benz M278 (4.6L/4.7L V8) Engine Overhaul Kit is a comprehensive package of components specifically designed to rebuild the engine’s rotating assembly and ensure its sealing integrity.

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Description

Core Engine Specifications (M278)
Layout: 4.6L/4.7L (4663cc) V8 DOHC Turbocharged
Cylinder Bore: 92.9 mm (Standard)
Piston Pin: 24 mm Diameter, 56 mm Length
Oil Capacity: 8.5 to 9.0 Liters (Spec 229.5 5W-40)

Common Kit Components and Specifications
Pistons and Piston Rings: Constructed from forged hypereutectic aluminum alloy, with the piston skirts treated via plasma spraying.
Piston Ring Specifications: Standardized dimensions (Top Ring: 1.2mm; Second Ring: 1.5mm; Oil Ring: 2.0mm).
Bearings: Both main bearings and connecting rod bearings feature a triple-layer metal structure (steel, copper-lead alloy, and tin-based babbitt alloy).
Gaskets and Seals: A complete set of upper and lower overhaul gaskets is provided, manufactured using high-temperature-resistant ACM materials and metal materials.
Timing Components: Typically includes four timing chains, VVT sprockets (for both intake and exhaust sides), tensioners, and timing guides.

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