Garrett 896053-5003S GBC20-300 Turbo Universal IWG 0.55 A/R

Vehicle Fitment

• Universal application
• Garrett Boost Club Line GBC20-300 full turbo for custom turbo systems
• Compatible with 0.8L-2.0L engine displacement applications when properly matched
• Not vehicle-specific; fitment must be confirmed by engine displacement, manifold flange, wastegate layout, oil drain routing, inlet/outlet packaging, and horsepower target
• Suitable for small automotive, powersports, and personal watercraft turbo builds where the system is engineered around this turbocharger
• Internal wastegate configuration
• T25 turbine inlet and 5-bolt turbine outlet configuration
• Do not assign year/make/model fitment unless the complete turbo system is manually verified

Features

• Garrett Boost Club Line GBC20-300 full turbocharger
• Supports 170-300 horsepower applications
• Designed for 0.8L-2.0L engine displacement range
• Forged fully machined compressor wheel
• Journal bearing rotating group
• Internal wastegate with calibrated actuator included
• Modern compressor and turbine aerodynamics for improved response
• Compact small-frame design for tight packaging
• Full turbo configuration rather than super core only
• Outline interchangeable with GBC17/GBC22 family sizing

Specifications

• Part Number: 896053-5003S
• Product Line: Garrett Boost Club Line GBC20-300
• Configuration: Full turbo
• Horsepower Rating: 170-300 HP
• Engine Displacement Range: 0.8L-2.0L
• Compressor Inducer / Exducer: 39 mm / 52 mm
• Compressor A/R: 0.59
• Turbine Inducer / Exducer: 47 mm / 42 mm
• Turbine Trim: 84
• Turbine A/R: 0.55

Included Components

• 1x Garrett GBC20-300 turbocharger
• 1x internal wastegate actuator

Product Description

The Garrett 896053-5003S is a Boost Club Line GBC20-300 full turbocharger designed for custom small-displacement turbo systems. Garrett rates this model for 170 to 300 horsepower and recommends it for engines in the 0.8L to 2.0L range, making it a strong option for compact automotive builds, powersports projects, and personal watercraft applications that need a responsive small-frame turbo.

This full turbo configuration uses a forged fully machined 39mm compressor wheel, journal bearing center section, and an internally wastegated turbine housing with calibrated actuator. Key dimensions include a 39mm compressor inducer, 52mm compressor exducer, 0.59 compressor A/R, 47mm turbine inducer, 42mm turbine exducer, 84 trim turbine wheel, and 0.55 turbine A/R. This version uses a T25 turbine inlet and 5-bolt outlet configuration, so manifold and exhaust compatibility must be confirmed during fabrication.

This product does not change vehicle ride height, so no front or rear lift/drop height applies. Because 896053-5003S is a universal custom-fit turbocharger, always verify engine displacement target, manifold flange, wastegate strategy, oil drain geometry, compressor outlet routing, and available chassis clearance before purchase or installation.