Turbo Cores

Turbo Cores: the rotating heart of your turbocharger, ready to bolt to your housings

A turbo core, or supercore, is the center section of a turbocharger - the center housing rotating assembly that carries the shaft, the compressor and turbine wheels, the bearings, and the oil and coolant passages. It is the part that actually spins and makes boost. Fitting a fresh core is what you do when a shaft has play, a wheel is clipped, or you want a known-good CHRA to build a turbo around your own choice of compressor and turbine housings. Buy the turbo cores here as a supercore and you finish the assembly with the housings that suit your manifold and downpipe.

What ThreePiece stocks

This category currently lists 6 turbo cores from two brands: Garrett and BorgWarner. In the current sample, BorgWarner accounts for four of the cores and Garrett for two. Prices run from $1,025 to $1,985, which is the live range for what is in stock right now rather than a fixed quote.

On the Garrett side, the Garrett G30-725 G-Series II Supercore and the Garrett G25-585 G-Series II Supercore sit near the top of the range. From BorgWarner, the EFR B1 7163 Super Core and the EFR B1 6758 Super Core are two of the four EFR-family cores stocked.

How to choose

Choosing a core comes down to the size and family you are building toward. The Garrett G-Series II supercores and the BorgWarner EFR supercores are different platforms, so the housings, clamping and hardware you pair them with follow the family you pick - you cannot mix a Garrett core into an EFR housing set. Within each family, the model number tells you the frame size: the G25-585 and the smaller EFR 6758 suit tighter, quicker-spooling builds, while the G30-725 and EFR 7163 step up in frame. Price tracks frame and family more than anything else, and all six of these cores land within a fairly narrow band from $1,025 to $1,985.

What else you need with it

A core is only the center section, so plan the supporting parts before you order. Look at Fittings and Adapters for the oil and coolant lines that feed the center housing, and Bearings if you are servicing related rotating parts. A turbo works your cooling system hard, so it is worth checking Radiators and Oil Filters at the same time. If the build goes deeper into the engine, Gasket Kits and Pistons live in the same section. Everything sits under the Engine Components parent if you want to browse the full range.

Fitment help and ordering

These turbo cores are listed without vehicle-specific fitment data, so confirm the core, wheel and housing combination against your build before ordering. Our team can help by phone at 813-535-5801, or reach us through Contact Us with your target setup. Every order ships with free shipping, and Affirm and Katapult financing is available to spread the cost of a supercore.

Turbo Cores: the rotating heart of your turbocharger, ready to bolt to your housings

A turbo core, or supercore, is the center section of a turbocharger - the center housing rotating assembly that carries the shaft, the compressor and turbine wheels, the bearings, and the oil and coolant passages. It is the part that actually spins and makes boost. Fitting a fresh core is what you do when a shaft has play, a wheel is clipped, or you want a known-good CHRA to build a turbo around your own choice of compressor and turbine housings. Buy the turbo cores here as a supercore and you finish the assembly with the housings that suit your manifold and downpipe.

What ThreePiece stocks

This category currently lists 6 turbo cores from two brands: Garrett and BorgWarner. In the current sample, BorgWarner accounts for four of the cores and Garrett for two. Prices run from $1,025 to $1,985, which is the live range for what is in stock right now rather than a fixed quote.

On the Garrett side, the Garrett G30-725 G-Series II Supercore and the Garrett G25-585 G-Series II Supercore sit near the top of the range. From BorgWarner, the EFR B1 7163 Super Core and the EFR B1 6758 Super Core are two of the four EFR-family cores stocked.

How to choose

Choosing a core comes down to the size and family you are building toward. The Garrett G-Series II supercores and the BorgWarner EFR supercores are different platforms, so the housings, clamping and hardware you pair them with follow the family you pick - you cannot mix a Garrett core into an EFR housing set. Within each family, the model number tells you the frame size: the G25-585 and the smaller EFR 6758 suit tighter, quicker-spooling builds, while the G30-725 and EFR 7163 step up in frame. Price tracks frame and family more than anything else, and all six of these cores land within a fairly narrow band from $1,025 to $1,985.

What else you need with it

A core is only the center section, so plan the supporting parts before you order. Look at Fittings and Adapters for the oil and coolant lines that feed the center housing, and Bearings if you are servicing related rotating parts. A turbo works your cooling system hard, so it is worth checking Radiators and Oil Filters at the same time. If the build goes deeper into the engine, Gasket Kits and Pistons live in the same section. Everything sits under the Engine Components parent if you want to browse the full range.

Fitment help and ordering

These turbo cores are listed without vehicle-specific fitment data, so confirm the core, wheel and housing combination against your build before ordering. Our team can help by phone at 813-535-5801, or reach us through Contact Us with your target setup. Every order ships with free shipping, and Affirm and Katapult financing is available to spread the cost of a supercore.