Garrett 908828-0003 GVW-45 Wastegate Universal 45mm Black 14.5 PSI

Vehicle Fitment

• Universal application
• Garrett GVW-45 external wastegate for custom turbo systems
• Not vehicle-specific; fitment must be confirmed by manifold routing, wastegate flange size, boost-control strategy, and available packaging space
• Fits turbo builds using a 45mm external wastegate and compatible GVW-45 flange layout
• Garrett catalogs this exact part number as the black GVW-45 kit with 1 Bar / 14.5 PSI base pressure
• GVW-45 flange sizing is commonly listed as compatible with TiAL MV-R style flange dimensions on trusted performance retailers
• Color: Black
• Fitment through 2025 is application-based rather than vehicle-specific

Features

• Garrett GVW-45 external wastegate for precise boost control
• CFD-tested design for maximum flow and thermal efficiency
• Optimized actuation stability and temperature resistance for durability
• Replaceable valve and bushing components for serviceability
• Robust cap design simplifies spring changes and diaphragm service
• Liquid-cooled actuator ports for severe heat applications
• Anodized aluminum actuator cover
• High-temp stainless valve housing rated up to 1050°C
• Includes springs, flanges, V-bands, fittings, and hardware
• Designed to regulate turbo shaft speed by bypassing exhaust flow around the turbine

Specifications

• Part Number: 908828-0003
• Product Line: Garrett GVW-45
• Product Type: External wastegate
• Valve Diameter: 45 mm
• Base Pressure: 1 Bar / 14.5 PSI
• Adjustable Base Pressure Range: 0.2 Bar / 2.9 PSI to 1.7 Bar / 24.7 PSI
• Maximum Base Pressure: 23 PSI / 1.6 Bar for GVW-45 per Garrett retailer-spec references
• Valve Housing Material: High-temp stainless steel
• Actuator Cover Material: Fully machined anodized aluminum
• Color: Black

Included Components

• 1x Garrett GVW-45 wastegate
• 1x spring set
• 1x inlet V-band
• 1x outlet V-band
• 1x inlet flange
• 1x outlet flange
• 1x valve seat
• 1x set water fittings
• 1x banjo bolt
• 1x set banjo fittings
• 1x set washers
• 1x set air plugs

Product Description

The Garrett 908828-0003 is a GVW-45 external wastegate built for custom turbocharged applications that need precise and durable boost control. This exact part number is the black 45mm version with a 1 Bar / 14.5 PSI base pressure setup from Garrett. Because it is a universal turbo-system component, it should be selected by wastegate size, flange compatibility, boost target, and manifold design rather than by year, make, or model.

Garrett designed the GVW series with a CFD-tested flow path, high-temperature stainless valve housing, anodized actuator cover, and liquid-cooling capability for severe-use applications. The GVW-45 also uses replaceable internal service parts and includes the major installation hardware in the box, including springs, flanges, V-bands, fittings, and plugs. Garrett's GVW documentation and trusted retailer listings show this model at 1 Bar / 14.5 PSI out of the box, with configurable spring coverage from 0.2 Bar / 2.9 PSI up to 1.7 Bar / 24.7 PSI.

This product does not change vehicle ride height, so no front or rear lift/drop height applies. Since 908828-0003 is a universal wastegate, always verify manifold placement, 45mm flange compatibility, coolant and pressure-port routing, and boost-control plumbing before installation.