Garrett 856800-5003S GTX2860R GenII Turbocharger 200-475HP T25 5-Bol

Vehicle Fitment

• Universal performance turbocharger - not specific to any vehicle
• Suitable for custom turbo systems and engine upgrades (1.4 L-2.5 L range)

Features

• Garrett GTX2860R Gen II turbocharger assembly
• Gen II compressor aerodynamics for improved flow and power
• Ported shroud and integrated speed sensor port
• Dual ceramic ball bearings for quick spool and durability
• Water- and oil-cooled center housing for long life
• Wastegated turbine housing with internal wastegate
• T25 inlet flange with 5-bolt outlet
• Standard rotation configuration

Specifications

• Brand: Garrett
• Part Number: 856800-5003S
• Turbo Model: GTX2860R Gen II
• Supported Power: ~200-475 HP
• Recommended Displacement: ~1.4 L-2.5 L
• Compressor Wheel: ~46 mm inducer / ~60 mm exducer (Trim ~58)
• Compressor A/R: ~0.60
• Compressor Inlet: 3.00" (76.2 mm)
• Compressor Outlet: 2.00" (50.8 mm)
• Turbine Wheel: ~54 mm inducer / ~47 mm exducer (Trim ~76)
• Turbine Housing A/R: ~0.64 (T25 inlet / 5-bolt outlet)
• Bearing Type: Dual ceramic ball bearings
• Cooling: Water & oil-cooled CHRA

Included Components

• 1x Garrett GTX2860R Gen II turbocharger assembly
• Note: Actuator, mounting hardware, hoses, and gaskets not included

Product Description

The Garrett 856800-5003S GTX2860R Gen II Turbocharger is a performance-oriented forced-induction upgrade designed for a wide range of custom automotive applications targeting about **200-475 HP**. As part of Garrett's Gen II GTX line, this turbocharger features updated compressor aerodynamics with a precision-machined ported shroud and integrated speed sensor port to improve airflow efficiency and surge resistance compared with earlier GTX designs. Its smaller footprint and efficient flow make it well suited to engines in the **1.4 L to 2.5 L** displacement range when boosted for high performance.

Built with dual ceramic ball bearings and a water- and oil-cooled center housing, the 856800-5003S offers quicker spool and enhanced durability under repeated high-boost conditions. The turbine housing uses a **0.64 A/R T25 inlet** with a 5-bolt outlet and an internal wastegate to help balance boost control and exhaust flow. Because this unit is a **universal turbocharger assembly** rather than a vehicle-specific part, it must be installed with the proper plumbing, intercooler, and engine management configuration tailored to your performance goals and engine characteristics.