Torque Solution Oil Galley Plug – M18x1.5 to 1/8" NPT Adapter | Subaru EJ20 / EJ25

Tap into the Subaru EJ20 or EJ25 engine’s oil galley with the Torque Solution Oil Galley Plug Adapter. This billet adapter replaces the factory M18x1.5 oil galley plug and converts it to a standard 1/8" NPT female port — providing a clean, reliable connection point for oil pressure sensors, turbo oil feed lines, oil temperature sensors, or other auxiliary oil system plumbing without the need for welding or custom fabrication.

A must-have fitting for EJ-powered builds running aftermarket turbos, oil pressure gauges, or data logging setups.

Key Features

• M18x1.5 to 1/8" NPT Conversion: Replaces the factory EJ oil galley plug and provides a 1/8" NPT female port for auxiliary oil system connections
• Billet Construction: Precision-machined from billet aluminum or steel for a secure, leak-free fit in the EJ oil galley
• Subaru EJ20 / EJ25 Specific: Designed for direct fitment in the M18x1.5 oil galley plug location on EJ-series engines
• Versatile Applications: Ideal for oil pressure sensor installation, turbo oil feed line tapping, oil temperature sensor, or data logging connections
• Torque Solution Quality: Engineered by Torque Solution for reliable, professional-grade engine builds

Specifications

• Thread In: M18x1.5 (Male — replaces factory oil galley plug)
• Thread Out: 1/8" NPT (Female)
• Part Number: TS-SU-609
• Application: Subaru EJ20, EJ25 — M18x1.5 oil galley plug location

Common Applications

• Subaru WRX (EJ20 / EJ255)
• Subaru WRX STI (EJ257)
• Subaru Forester XT (EJ255)
• Subaru Legacy GT (EJ255)
• All EJ20 / EJ25 applications with M18x1.5 oil galley plug

Note: Use appropriate thread sealant on NPT threads. Verify oil galley plug location and thread size for your specific EJ variant before ordering. Professional installation recommended — improper installation can result in oil leaks or engine damage.