GReddy 12401187 Oil Cooler Std Block Adapter 3/4-16UNF -10AN Thermostat

Vehicle Fitment

• Universal - fits most Toyota, Scion, Lexus, Nissan, and Infiniti vehicles using a 3/4-16UNF oil filter thread; not model-year specific

Fitment Notes

• For M20xP1.5 thread applications (most Acura, Honda, Mitsubishi, Subaru, and some Nissan/Infiniti), use PN 12401190 instead
• Requires a GReddy-sized oil filter: OX-01 (13901101), OX-02 (13901102), OX-03 (13901103), OX-06 (13901106), or an AE86/4AG-sized filter - confirm compatible filter dimensions (outer diameter ≤80mm, O-ring inner diameter ≥52mm, outer diameter ≤76mm)
• For pressure/temperature sensor integration, use companion PN 16400720 for 1/8 PT ports
• Supersedes and replaces discontinued PN 12401123 - same mounting footprint

Features

• Built-in GReddy thermostat (70-80°C opening range) for quick engine warm-up
• Revised oil flow path optimized for both low- and high-temperature flow rates
• -10AN fittings for high-flow oil cooler plumbing
• Key component for building a custom GReddy oil cooler kit

Specifications

• Engine-Side Thread: 3/4-16UNF
• Filter-Side Thread: 3/4-16UNF
• Fitting Size: -10AN
• Thermostat Range: 70-80°C

Included Components

• 1x Oil Cooler Standard Block Adapter with Built-In Thermostat

Product Description

This revised GReddy oil block adapter is the foundation piece for building a custom oil cooler setup on 3/4-16UNF thread vehicles - mostly Toyota, Scion, Lexus, Nissan, and Infiniti applications. The updated internal design improves oil flow at both cold start and full operating temperature compared to the earlier version it replaces.

The built-in thermostat keeps warm-up quick even with an oil cooler added to the system, opening flow to the cooler only once the engine reaches operating temperature. With -10AN fittings, it's sized to handle serious flow for a dedicated oil cooler line, making it a solid base component for anyone piecing together a custom cooling setup rather than buying a pre-configured vehicle-specific kit.