Garrett GTX3582R Gen II Super Core (Replaces 836047): Specs, Fitment, and Is It Worth It

The Garrett GTX3582R Gen II Super Core is a high-output single-turbocharger platform that replaces the original GTX3582R Super Core (836047-5002S) with an updated Gen II assembly bearing part number 851154-5004S. The GTX3582R sits in the upper tier of Garrett's GTX Racing Supercore lineup, using an 82mm billet compressor wheel to deliver strong compressor flow across a broad power range while maintaining a compact turbocharger footprint that fits common single-turbo mounting locations. The Gen II designation reflects improvements in compressor wheel aerodynamics, bearing specification, and overall assembly quality compared to the original GTX3582R. Builders replacing an existing 836047-5002S or sourcing a new GTX3582R for a single-turbo build should use the 851154-5004S as the current part number -- the two assemblies are cross-compatible in the sense that the 851154-5004S is a direct functional replacement for the 836047-5002S in the same turbine housing configuration. This guide covers the Garrett GTX3582R Gen II specs, how this Garrett Turbocharger compares against the original and nearby models in the GTX line, and what builds are best served by the GTX3582R Gen II Super Core.

Specifications: Garrett GTX3582R Gen II Super Core

The GTX3582R Gen II Super Core (851154-5004S) covers the following specifications:

• Compressor inducer: 82mm billet aluminum GTX-series wheel (backswept blade profile, Gen II aerodynamic revision)
• Assembly type: Super Core -- includes the CHRA and compressor housing; turbine housing purchased separately
• Replaces: 836047-5002S (original GTX3582R Super Core)
• Power range: approximately 600-900 horsepower on a single-turbo gasoline or built diesel application, depending on engine displacement and boost target
• Turbine housing compatibility: Pairs with standard Garrett GTX-series V-Band turbine housings at matched A/R; turbine housings sold separately
• CHRA option: The GTX3582R Gen II CHRA (836019-5004S) is available separately for builders who need only the rotating cartridge assembly

The GTX3582R occupies the position between the GTX3576R (851154-5003S, replacing 836047-5001S) and the larger GTX3584RS in terms of compressor wheel size and peak flow. The 2mm difference in inducer diameter between the GTX3576R and GTX3582R translates to a meaningful difference in compressor map width and surge line position at the higher end of the power range, making the GTX3582R the appropriate choice when the build's power target and engine displacement push past what the GTX3576R can sustain efficiently.

The Super Core configuration means the turbocharger is complete except for the turbine housing. The builder selects a turbine housing separately to match the exhaust manifold connection type (most commonly V-Band inlet / V-Band outlet) and the A/R ratio appropriate for the engine's displacement and target power band. The Super Core package allows this turbine housing selection to be made independently from the rotating assembly, which is standard practice on custom single-turbo fabrication builds.

Top Picks: GTX3582R Gen II Super Core and Related Parts

The Garrett GTX3582R Gen II Super Core (Replaces 836047-5002S) - Super Core Assembly (851154-5004S) is the current production replacement for the 836047-5002S and the standard choice for new GTX3582R single-turbo builds. It includes the Gen II CHRA and compressor housing ready to receive a separately purchased turbine housing. For builds requiring only the rotating cartridge rather than the full super core assembly -- such as a bearing or cartridge replacement on an existing GTX3582R with a serviceable compressor housing -- the Garrett GTX3582R Gen II CHRA - Turbo Cartridge (836019-5004S) provides the Gen II core assembly without the compressor housing. Builders evaluating the GTX range at a slightly smaller compressor specification can also consider the Garrett GTX3576R Gen II Super Core (Replaces 836047-5001S) - Super Core Assembly (851154-5003S), which shares the same Gen II platform architecture at an 80mm inducer for applications where peak flow requirements and displacement are somewhat lower. Browse the complete Garrett GTX Series turbocharger catalog for Super Core assemblies and turbine housing options across the GTX lineup.

Match to the Build

• Single-turbo gasoline builds targeting 600-900 horsepower on a large inline-4 or V6: The GTX3582R's 82mm compressor wheel provides the compressor map area and surge margin to support this power range on engines that generate enough exhaust flow to spin the turbine efficiently; a built inline-4 or moderate-displacement V6 at Stage 2 or Stage 3 boost is a common application where the GTX3582R lands correctly between a smaller GTX3076R or GTX3076R Gen II and the larger GTX3584RS
• Single-turbo swap builds on a V8 gasoline engine at moderate boost: A V8 single-turbo build where the target is in the 600-800 horsepower range and boost pressure is moderate benefits from the GTX3582R's wide compressor map -- the V8's higher exhaust flow relative to displacement spools the larger GTX3582R wheel efficiently while the 82mm compressor delivers the required mass flow at the target boost level without pushing the compressor into its maximum efficiency range
• Replacement for an existing GTX3582R Super Core (836047-5002S) showing wear: The 851154-5004S is a direct functional replacement in the same turbine housing setup; a builder returning for a Super Core replacement on an existing GTX3582R build needs the 851154-5004S as the current part number and receives the Gen II compressor and bearing improvements as part of the replacement
• Builds stepping up from a GTX3076R or GTX3071R that have reached the compressor's flow ceiling: An existing single-turbo build on a GTX3076R Gen II that is producing surge or a power plateau at the current build's boost target is a candidate for the GTX3582R step-up; the larger 82mm compressor moves the surge line and raises the flow ceiling substantially compared to the 76mm-range wheels in the GTX3076R and GTX3071R

Signs the Current Turbo Is Undersized or Worn

• Compressor surge at peak boost on the existing single turbo -- a rhythmic flutter or stutter under wide-open throttle at the point where the engine is making maximum power; this indicates the current compressor is operating past its surge boundary, and the GTX3582R's 82mm Gen II compressor wheel extends the surge line well beyond the limits of smaller-frame turbos in the 600-900 horsepower range
• Oil consumption or compressor seal leak on a high-cycle single-turbo build -- shaft seal wear at the compressor side allowing oil into the intake charge; identifiable by oily residue inside the charge pipe at the compressor outlet and occasional blue smoke at startup; the GTX3582R Gen II CHRA (836019-5004S) addresses this with a replacement cartridge for existing GTX3582R housings, while the full Super Core (851154-5004S) replaces the complete assembly including the compressor housing
• Power output plateau below the build's fueling and boost capability -- the engine is fueled and tuned for more power than the data logs confirm it is producing; the current compressor reaching its maximum mass flow rate before the engine's thermodynamic and fuel delivery potential is realized; a step to the GTX3582R raises the compressor flow ceiling to match a higher-output build configuration
• Bearing noise from the existing turbocharger at idle or under boost -- worn bearing surfaces producing a grinding or whine that changes with engine RPM and boost demand; a bearing-worn single turbo on an established performance build is best replaced with the 851154-5004S Super Core to restore the full Gen II assembly rather than only the CHRA, since compressor housing wear on a high-cycle race or performance build often accompanies bearing wear

Frequently Asked Questions

What is the difference between part numbers 836047-5002S and 851154-5004S?

The 836047-5002S is the original GTX3582R Super Core, which is superseded. The 851154-5004S is the Gen II Super Core that replaces it in current production. The Gen II assembly improves on the original in compressor wheel aerodynamics and bearing specification. The two parts serve the same turbine housing interface and mounting configuration, so a builder upgrading from an existing 836047-5002S setup purchases the 851154-5004S and installs it in the same turbine housing without modifications to the rest of the single-turbo setup.

When should I buy the CHRA rather than the full Super Core?

The GTX3582R Gen II CHRA (836019-5004S) is the right choice when the existing turbocharger's compressor housing is in serviceable condition and only the rotating cartridge assembly needs replacement. This is common in builds where a bearing failure occurred but the compressor housing was undamaged. When the compressor housing shows wear, erosion from compressor surge, or damage, the full Super Core (851154-5004S) is the correct replacement, as it includes a fresh compressor housing and eliminates the need to inspect and potentially rework the existing housing.

Bottom Line

The Garrett GTX3582R Gen II Super Core (851154-5004S) is the current production 82mm single-turbo super core for builds in the 600-900 horsepower range. It replaces the 836047-5002S with Gen II compressor and bearing improvements, pairs with standard GTX-series V-Band turbine housings, and serves single-turbo gasoline and performance diesel applications where the GTX3076R-range turbos have reached their flow ceiling. The CHRA (836019-5004S) is available separately for cartridge-only service on existing GTX3582R housings.