Garrett 856801-5038S GTX3071R GenII Turbocharger T4/V-Band 0.68 A/R 300,A

Vehicle Fitment

• Universal performance turbocharger - not specific to any vehicle
• Designed for custom forced-induction systems on ~1.8 L-3.0 L engines

Features

• Garrett GTX3071R Gen II complete turbocharger assembly
• Second-generation compressor aerodynamics for improved airflow
• Ported shroud compressor housing to reduce surge and widen operating range
• Dual ceramic ball bearing center housing for fast spool and durability
• Water- and oil-cooled CHRA for thermal stability under heavy load
• Integrated optional speed sensor port for advanced tuning/data logging
• Internal wastegate with T4 inlet and V-Band outlet for exhaust flexibility
• Standard rotation configuration (clockwise)

Specifications

• Brand: Garrett
• Part Number: 856801-5038S
• Turbo Model: GTX3071R Gen II
• Supported Power Range: ~300-575 HP
• Recommended Engine Displacement: ~1.8 L-3.0 L
• Compressor Inducer: ~54 mm
• Compressor Exducer: ~71 mm
• Compressor Trim: ~58
• Compressor A/R: ~0.60
• Compressor Inlet: ~4.00"
• Compressor Outlet: ~2.00"
• Turbine Wheel Inducer: ~60 mm
• Turbine Wheel Exducer: ~55 mm
• Turbine Trim: ~84
• Turbine Housing A/R: ~0.68
• Turbine Inlet Flange: T4
• Turbine Outlet Flange: V-Band
• Cooling: Oil & water-cooled center housing
• Bearing Type: Dual ceramic ball bearings

Included Components

• 1x Garrett GTX3071R Gen II turbocharger assembly
• Integrated internally wastegated turbine housing and actuator
• Note: Mounting hardware, oil/coolant lines, gaskets, and hoses not included

Product Description

The Garrett 856801-5038S GTX3071R Gen II Turbocharger is a high-performance forced-induction upgrade engineered for custom turbo systems targeting roughly **300-575 HP**. As part of Garrett's next-generation GTX lineup, this turbocharger features improved compressor aerodynamics and a ported shroud design that enhances flow and reduces compressor surge compared with earlier GTX units. The dual ceramic ball bearing center housing is water- and oil-cooled for rapid spool-up and reliable operation under high-boost conditions.

Equipped with a **0.68 A/R** turbine housing and a **T4 inlet with V-Band outlet** configuration, this assembly offers flexible exhaust integration suited to a variety of custom manifold designs and piping layouts. The optional speed sensor port allows advanced tuners to integrate real-time turbo speed monitoring for tuning and performance validation. Because this is a **universal turbocharger assembly** - not tied to any specific vehicle - it's ideal for custom installations on engines typically in the **1.8 L to 3.0 L** range when paired with proper supporting modifications and engine management tailored to your performance goals.