SKU: 31928122418

Cylinder 4 Cooling Connection

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Description

Cylinder 4 Cooling ConnectionThis kit is designed to help increase the cooling to the #4 cylinder on the Subaru EJ series engines. This hose kit connects to an existing port on the back of the left hand side of the motor that is blocked off from the factory with a plug. Compatibility: All Subaru EJ Series Motors Included in the kit: 10 Inches of Gates Engine Coolant Hose 10 AN 45 Degree Push To Connect Fitting 10 AN to Metric Straight Thread AdapterAluminum Crush Washer for

This kit is designed to help increase the cooling to the #4 cylinder on the Subaru EJ series engines. This hose kit connects to an existing port on the back of the left hand side of the motor that is blocked off from the factory with a plug.

Compatibility:
All Subaru EJ Series Motors

Included in the kit:

10 Inches of Gates Engine Coolant Hose
-10 AN 45 Degree Push To Connect Fitting
-10 AN to Metric Straight Thread Adapter
Aluminum Crush Washer for Metric Straight Thread Connection
304 Stainless Steel 5/8” Barbed Tee Connection
Qty 4 Stainless Steel Hose Clamps
12mm Allen Socket with 1/2” Square Drive


Basic Installation Steps:

  • Drain coolant from engine below the level of the plug on the back of the engine

  • Remove factory coolant plug using the supplied 12mm allen socket

  • Install straight thread to 10AN adapter with included aluminum crush washer

  • Test fit 10AN 45 degree fitting with hose attached

  • Locate heater core hose that connects to firewall and mark where to cut and install stainless tee fitting

  • Trim included Gates heater hose (different chassis and models require slightly different hose lengths)

  • Install tee connector inline with existing heater hose with the center connection being used for the provided line, use hose clamps on all 4 barbed hose connections

  • Tighten 10AN connection, ensure the new hose does not rub on any other parts in the engine bay paying close attention to the steering shaft

  • Refill coolant and properly “burp” the system to remove all air introduced during the installation

    *Note: If you see corrosion or surface imperfections on the sealing face of the block you can apply Permatex or similar sealing material to the metric straight threads on the adapter fitting into the block for a secondary sealing point. NEVER apply any type of sealant or tape to the threads on AN fittings.

This is a universal kit, depending on the year and chassis this is being installed on the length of heater hose and the point at which you connect into the factory hoses will be slightly different. We will be posting more detailed instructions and photos for each unique application very soon.

The intent of this kit is to solve an imbalance in the factory cooling system on the EJ series motors. Subaru designed the cooling system to ensure that cylinder #4 ran slightly hotter than the rest of the cylinders, this allowed them to then tune the system so that if knock were to occur is would happen first on cylinder #4. While this simplifies the control system on a factory car it doesn’t allow tuners to get the most potential out of the engines, the tune is basically limited by an intentional design flaw in the cooling system. Since this type of modification (not just our kit) can effect knock response on your engine we recommend consulting with your tuner before installation and having your tuner review logs after installation. Professional installation is recommended.

Shipping Notes
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Exchange/Return Notes
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SKU: 31928122418

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M Summers
New York, US
★★★★★ 5
Profoundly helpful!
Format: Paperback
I lead book studies centered on social justice and Joash’s work is powerful and refreshing! Fresh perspectives, practical tips, & convicting truths rooted in the Good News of Jesus. Each member of the study has said again and again how good this book has been! Thank you Joash!
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Reviewed in the United States on May 24, 2026
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D. Griffin
West Palm Beach, US
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Worthwhile read.
Format: Kindle
The first few chapters would perhaps been worth 10 stars the remaining chapters not so much although it was good information. It became a bit monotonous but all in all it’s still a five star book.
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Reviewed in the United States on April 28, 2026
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James Parker
Lake Worth, US
★★★★★ 5
Open our eyes
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I recently finished reading Joash's very insightful, inspirational, and encouraging book.  I hope it is read and implemented far and wide.  His interpretation of Jesus and "the church" is as close to the spirit of Scripture as I can find.  Twenty years ago, I read "Jesus and the Disinherited" by Howard Thurman that led me to places and situations and cultures and events which were not part of my own life's context. It was Jesus' context and I began to understand his lessons through his eyes instead of my own.  Joash, like Howard Thurman, is right - we colonized, Caucasian, Western civilization folks just don't get it.  But we should and we need to. Open your mind to read this book and see things through God's eyes. Thank you Joash!! We should all look for ways to extend this teaching to others. "...thy will be done, on Earth [all of earth and humanity] as it is [and will be] in Heaven.
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Reviewed in the United States on December 6, 2025
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Christopher W. Lilley
Lexington, US
★★★★★ 5
A Bold, Pastoral Call to Decolonize the Gospel
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When I began my journey of theological deconstruction, I quickly realized that shedding the harmful elements of conservative white evangelicalism wasn’t enough. The deeper I went, the more I saw how white Christianity remains entangled with colonial narratives that uphold social and sexual hierarchies and distort the liberating truth of the Gospel. Rev. Joash Thomas’s *The Justice of Jesus* is the book I didn’t know I needed. His voice has profoundly shaped my theological imagination, and this work is a masterclass in liberation ecclesial theology. With clarity and courage, he names the perversion of white, colonialist, slaveholder theology and invites readers to confront its lingering presence in our churches, our pulpits, and our lives. What sets this book apart is its balance of prophetic fire and pastoral tenderness. Rev. Joash never veers into cynicism or outrage for outrage’s sake. Instead, he offers practical, Spirit-led guidance for reclaiming the Gospel from the sin of colonialism and whiteness. He casts a vision of Eucharistic unity, a table wide enough to defy empire and deep enough to hold our collective liberation in Christ. This book emboldened me to use my voice and privilege to pursue the decolonization of theological practice in my own context. I cannot recommend it highly enough to anyone seeking a Gospel that liberates, heals, and restores.
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Monica Godoy
Houston, US
★★★★★ 5
Un libro necesario para la iglesia hoy
Format: Paperback, Format: Paperback
As a believer from the Global South. As a child who first heard the liberating message of Jesus through integral mission in Latin America. Yet, over the years, I was also exposed to a highly colonized version of the gospel—one that increasingly abandoned the most vulnerable and aligned itself with a form of Christianity distant from real human needs. Reading this book restores my hope, not because change will come quickly or easily, but because it opens the space for the necessary conversations of reevaluation. Joash, in a very direct way, lays out the causes and effects of inherently unjust colonizing systems that have broken entire societies, and shows how these systems have permeated the way we live out the gospel of Jesus. By bringing these to light in various areas, he challenges the Western church to reconsider its practices, to move alongside the oppressed, and to become aware of its own shortcomings. At the same time, he reminds us that hope remains, that we have much to learn from the Global South, and that there are many silenced voices that must urgently be heard.
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Reviewed in the United States on October 2, 2025

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