Will the GTX3582R Gen II Assembly Kit with T4 inlet fit my T4 manifold?

The 740902-0017 housing in this GTX3582R Gen II Assembly Kit has an undivided T4 turbine inlet, so it is made for a single-scroll T4 manifold, plus a V-band outlet for the downpipe. It is a free-float design, so the manifold needs an external wastegate. Garrett publishes a flange diagram to confirm dimensions.

Is this housing divided?

No. Garrett lists the 740902-0017 housing as undivided, so it suits a single-scroll T4 manifold. A divided twin-scroll manifold needs a divided housing, which is not part of this kit, and running one on this housing gives up the benefit of the twin-scroll design.

How much power can it support?

Garrett rates the GTX3582R Gen II at 450 to 900 horsepower on engines from 2.0L to 4.5L. The rating is calculated from compressor choke flow and represents potential flywheel horsepower. The 0.82 A/R housing sits in the middle of the A/R sizes Garrett offers for this core.

Do I need water lines?

Yes. Garrett lists a water-cooled center housing for the GTX3582R Gen II, so the installation needs coolant feed and return lines in addition to oil feed and drain lines. Plan the routing before the turbocharger is mounted, since the T4 manifold position sets where the center housing sits.

Garrett supplies three items: super core 851154-5004S with the compressor housing fitted, turbine housing kit 740902-0017 in 0.82 A/R with a T4 inlet, and a gasket kit. The core and housing come in separate boxes, and the owner bolts them together.

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Description

Garrett GTX3582R Gen II Assembly Kit, 0.82 A/R T4 Inlet V-Band Outlet

Garrett’s GTX3582R Gen II Assembly Kit in 0.82 A/R with a T4 inlet is the version for builders whose manifold has the larger T4 turbine flange, joining super core 851154-5004S to GT35R turbine housing kit 740902-0017. It is free float with a V-band outlet, so boost is held by an external wastegate. Garrett rates the GTX3582R Gen II at 450 to 900 horsepower on 2.0L to 4.5L engines, and the 0.82 A/R suits a mid-size six or a well-built four aiming well past 600 horsepower. If the manifold is T3, the T3 0.82 A/R kit does the same job without an adapter.

Features

Gen II compressor wheel with a 66mm inducer, which Garrett says supports up to 20 percent more horsepower than Gen I
Fully machined speed sensor port, plugged from the factory and opened with a 5mm Allen key
0.82 A/R free-float housing with an undivided T4 inlet flange and V-band outlet

Specifications

Garrett turbo reference: 6662
Compressor inducer and exducer: 66mm and 82mm
Turbine inducer and exducer: 68mm and 62mm
Turbine housing: 0.82 A/R, undivided T4 inlet and V-band outlet
Wastegate: External (free float)
Bearing system: Dual ceramic ball bearing, water-cooled center housing
Maximum turbocharger speed: 130,000 rpm
Rotation: Standard

What’s Included

GTX3582R Gen II super core 851154-5004S with compressor housing
GT35R turbine housing kit 740902-0017, 0.82 A/R, undivided T4 inlet and V-band outlet
Gasket kit

Applications

The GTX3582R Gen II Assembly Kit is not vehicle specific. Garrett sizes it by engine and output:

Engine displacement: 2.0L to 4.5L
Power range: 450 to 900 horsepower (Garrett rating)
Manifold requirement: Undivided T4 turbine flange with an external wastegate

Notes

Ships as an assembly kit: super core and turbine housing kit in separate boxes, bolted together by the installer
An external wastegate is required, because this turbine housing has no internal wastegate
The GT and GTX version of the Garrett speed sensor kit is sold separately
Garrett states that running above 130,000 rpm is at the owner’s risk and can cause damage and premature failure
More housing sizes for this core are in the GTX3582R Gen II range

Frequently Asked Questions

Will the GTX3582R Gen II Assembly Kit with T4 inlet fit my T4 manifold? The 740902-0017 housing in this GTX3582R Gen II Assembly Kit has an undivided T4 turbine inlet, so it is made for a single-scroll T4 manifold, plus a V-band outlet for the downpipe. It is a free-float design, so the manifold needs an external wastegate. Garrett publishes a flange diagram to confirm dimensions.
Is this housing divided? No. Garrett lists the 740902-0017 housing as undivided, so it suits a single-scroll T4 manifold. A divided twin-scroll manifold needs a divided housing, which is not part of this kit, and running one on this housing gives up the benefit of the twin-scroll design.
How much power can it support? Garrett rates the GTX3582R Gen II at 450 to 900 horsepower on engines from 2.0L to 4.5L. The rating is calculated from compressor choke flow and represents potential flywheel horsepower. The 0.82 A/R housing sits in the middle of the A/R sizes Garrett offers for this core.
Do I need water lines? Yes. Garrett lists a water-cooled center housing for the GTX3582R Gen II, so the installation needs coolant feed and return lines in addition to oil feed and drain lines. Plan the routing before the turbocharger is mounted, since the T4 manifold position sets where the center housing sits.
What is included? Garrett supplies three items: super core 851154-5004S with the compressor housing fitted, turbine housing kit 740902-0017 in 0.82 A/R with a T4 inlet, and a gasket kit. The core and housing come in separate boxes, and the owner bolts them together.

About Garrett

Garrett Motion has turbocharged engines since 1955, when its T15 was matched to the Caterpillar D9 crawler, and in 1962 a Garrett turbocharger went into the Oldsmobile Jetfire Turbo Rocket, the first turbocharged production car. Garrett has supplied turbocharging in Formula 1 with Scuderia Ferrari, the FIA World Rally Championship and the 24 Hours of Le Mans. It has operated as a stand-alone company since 2018, and its technology is fitted to around 150 million vehicles worldwide.

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BP Pricing Difference

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Garrett GTX3582R Gen II Assembly Kit, 0.82 A/R T4 Inlet V-Band Outlet [856801-5071S]

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Garrett GTX3582R Gen II Assembly Kit, 0.82 A/R T4 Inlet V-Band Outlet

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About Garrett

Reviews