Cometic C4578-032 MLX Head Gasket for 1998-2006 Subaru EJ25D/251/252/253/255/257

Vehicle Fitment

• 1998-2006 Subaru Forester (EJ25D/251/252/253/255/257, 2.5L SOHC/DOHC)
• 1998-2006 Subaru Impreza (EJ25D/251/252/253/255/257, 2.5L SOHC/DOHC)
• 1999-2006 Subaru Legacy (EJ25D/251/252/253/255/257, 2.5L SOHC/DOHC)
• 2001-2006 Subaru Outback (EJ25D/251/252/253/255/257, 2.5L SOHC/DOHC)

Fitment Notes

• Compatible with both SOHC and DOHC versions of the EJ25 engine series.
• Not suitable for turbocharged EJ25 variants (e.g., EJ255, EJ257) in performance applications.
• Designed for 2.5L displacement; verify engine code before purchase.
• Ensure correct orientation and installation torque specifications during installation.

Features

• Multi-Layer Stainless Steel (MLX) construction for superior sealing performance.
• Integrated stopper layer to withstand additional cylinder pressures.
• Viton-coated outer layers for enhanced durability and resistance to high temperatures.
• Compressed thickness of 0.032 inches to maintain optimal compression ratios.
• 101mm bore size to match OEM specifications.
• Designed to deliver trouble-free, consistent performance.
• Made from high-quality materials for ultimate durability.
• No sealants or re-torque required after installation.

Specifications

• Material: Multi-Layer Stainless Steel (MLX)
• Compressed Thickness: 0.032 inches
• Bore Size: 101mm
• Bore Shape: Round
• Number of Layers: 3
• Drivetrain Compatibility: All-wheel drive (AWD) and rear-wheel drive (RWD) configurations
• Engine Compatibility: EJ25D/251/252/253/255/257 2.5L SOHC/DOHC
• Position: Cylinder Head

Included Components

• 1x Cometic C4578-032 MLX Head Gasket

Product Description

The Cometic C4578-032 MLX Head Gasket is engineered for Subaru's EJ25 series engines, covering both SOHC and DOHC configurations. This gasket features a multi-layer stainless steel construction with an integrated stopper layer, providing exceptional sealing capabilities under high-performance conditions.

With a compressed thickness of 0.032 inches and an 101mm bore size, the C4578-032 maintains optimal compression ratios, making it suitable for both stock and mildly modified engines. Its design is tailored for all-wheel drive (AWD) and rear-wheel drive (RWD) configurations. The gasket is manufactured to order, ensuring fresh production and quality control.