Remanufactured Subaru 2.5L L25 Q25 Z25 Cylinder Heads (Left Side)

Remanufactured Subaru 2.5L Cylinder Head (Left Side) – Casting # L25, Q25, Z25

Premium OEM-Quality Replacement Cylinder Head

This remanufactured left-side cylinder head is engineered to restore the performance and reliability of your Subaru 2.5L engine. Each unit is precision-machined to meet original equipment standards and comes fully assembled with a professional-grade valve job, new valve stem seals, and pressure testing for a leak-free installation.

🛠️ In-House Machining Process

• Cleaning: Fully disassembled and thermally cleaned.
• Soda Blasted: Castings are blasted with Sodium Bicarbonate. Because baking soda is water-soluble, there is zero risk of abrasive media clogging oil passages.
• Pressure Testing: Tested to 60 PSI to ensure no cracks or porosity leaks.
• Surfacing: All heads are resurfaced on our Rottler S85A for a precision gasket-sealing surface.
• Valve Job: Multi-angle valve job performed; every port is Vacuum Tested to ensure valves are seated 100% airtight.

📊 Technical Specifications

• Engine Size: 2.5L (Non-Turbo)
• Casting Number: L25, Q25, Z25
• Orientation: Left Side (Driver Side)
• Condition: Remanufactured to OEM Standards
• Core Return Required

🚛 Fitment Data

Common Applications:

• Subaru Baja: 2003–2006 Subaru Baja (2.5L, 4 cylinder, w/o turbo)
• Subaru Forester: 1999–2004 Subaru Forester (2.5L, w/o Turbo)
• Subaru Impreza: 1999–2004 Subaru Impreza (2.5L, w/o turbo)
• Subaru Legacy: 2000–2004 Subaru Legacy (SOHC, 2.5L, w/o turbo)