Welcome to the official GReddy USA blog. -Think of this as our online weekly "GReddy Times," a venue for us to report what's going on or what just happened at GReddy USA this week (new products, new projects, racing news, even online store specials.) On our blog you can see what we are up to in the GReddy Sales floor, R&D garage, on the road or even from our Headquarters in Japan.

Thursday, July 17, 2025

Newly Revised GReddy Thermostatic Oil Cooler Std Block Adapters

Standard -10 GReddy Oil Cooler Blocks (3/4-16UNF, M20xP1.5, or M20xP1.5 High sizes)

12401187    3/4 x 16UNF GReddy Oil Cooler Block -10AN  (supersedes 12401123) 

12401190    M20 x P1.5 GReddy Oil Cooler Block -10AN  (supersedes 12401119)

12401194    M20 x P1.5 GReddy Oil Cooler High Block -10AN  (supersedes 12401119 + 12002803)

Product features


◆ Replacement thermostatic oil cooler block adapter for std. GReddy oil cooler kits

◆ Key component to build your very own custom GReddy oil cooler kit.

◆ The design of the oil block with built-in thermostat has been improved & updated, and the oil flow path has been reviewed to optimize the flow rate at low and high temperatures.

◆ Kits available with standard GReddy -10 AN or optional smaller -8 AN or larger -12 AN outlets

◆ Use factory replacement oil filter or matching GReddy oil filter per application.
* Oil filters with an outer diameter of Φ80 or less, O-ring inner diameters of Φ52 or more ~ outer diameters of Φ76 or less can be installed.


     GReddy High Oil Cooler Block Adapter
                                                              (ideal for Sub. flat-4 engines or late model turbo Honda engines)

◆ Optional Oil block STD high type 12401194 is a 20mm high mount type of oil block STD. Compared to the spacer type, the installation work has been simplified, and the weight has been reduced. In addition, by making the mounting surface Φ70, it is possible to accommodate special mounting seating surfaces.
* Except for the lift-up part, it has the same design as the oil block STD. Please pay attention to the surrounding clearance.



◆ The updated screw size is engraved on the center bolt so that it can be identified at a glance.

 Revised Replacement Center-bolts



12401197    3/4-16UNF - 3/4-16UNF Center bolt (supersedes 12401152)

12401198    M20xP1.5 - M20xP1.5 Center bolt (supersedes 12402813)

12401196    M20xP1.5 - M20xP1.5 High Center bolt (partially supersedes 12002803)

 


Optional GReddy Oil Cooler Blocks with smaller -8AN or larger -12AN fittings

12401186    3/4 x 16UNF GReddy Oil Cooler Block -8AN  (supersedes 12401112)

12401189    M20 x P1.5 GReddy Oil Cooler Block -8AN  (supersedes 12401125)

12401193    M20 x P1.5 GReddy Oil Cooler High Block -8AN  (supersedes 12401119 + 12002803)

12401188    3/4 x 16UNF GReddy Oil Cooler Block -12AN  (supersedes 12401124)

12401191    M20 x P1.5 GReddy Oil Cooler Block -12AN  (supersedes 12401127)

12401195    M20 x P1.5 GReddy Oil Cooler High Block -12AN  (supersedes 12401119 + 12002803)