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USD 845.42
Part #: GA778445-5002S

Garrett 778445-5002S GT1749V Stage 1 Turbo Upgrade

2003.5-2006 Volkswagen 1.9L TDI (BEW Engine)
Part #: GA778445-5002S
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The Garrett 778445-5002S GT1749V Stage 1 Turbo Upgrade is the first performance upgrade / replacement turbocharger available to the Aftermarket for Volkswagen 1.9L TDI BEW Engines. The GT1749V comes equipped with a smart actuator, an industry exclusive, and a position sensor, which enables the turbocharger to communicate automatically with the Engine Control Unit (ECU). The kit is easy to install and suitable as a performance upgrade or replacement turbocharger. The Garrett VW TDI Kit also promotes a longer turbo and engine life span and increased reliability by lowering exhaust gas temperatures.

  • GT Wheel Aerodynamics
  • Can Support Up To Estimated 175HP
  • Increased Compressor Flow Over Stock
  • Turbine: 43mm Inducer, 38mm Exducer, 76 Trim, 0.61 A/R
  • Compressor: 36mm Inducer, 49mm Exducer, 55 Trim, 0.46 A/R
  • Turbine, Compressor & Oil Connections Fit With No Modifications
  • Includes Smart Actuator With Position Sensor (Separate EGR Adaptor Tube Required)
  • Garrett Patented Variable Nozzle Turbine (VNTTM) Design
  • 1 Year Warranty
Performance Comparison:
  • Stock: 100 HP & 177 Lb-Ft.
  • Garrett Turbo Kit: 175 HP & 250 Lb-Ft.

Applications (Fits BEW PD Engine Code):
2003.5-2006 Volkswagen Beetle
2003.5-2006 Volkswagen Golf
2003.5-2005 Volkswagen Jetta

Application Notes:
Replaces: Volkswagen OE Part#: 038 253 019 S, 038 253 014 E Model: KP39 (3K) 
Requires EGR adapter tube (see related items below)
HP results above are estimated. Actual figures will vary with tuning and fuel system upgrades. 


  • MFG. Number 778445-5002S
  • Manufacturer Name Garrett
  • Shipping Weight 25.00 lb.
  • Shipping Length 14 in.
  • Shipping Width 14 in.
  • Shipping Height 14 in.
  • Fuel Type Diesel
  • Cross Reference # 778445-5002ST
  • Warranty Yes
  • Warranty Info 1 Year
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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Questions and Answers

Is this system compatable and a good replacement alternative for an engine with 160k miles? (Runs fine but the stock turbo is starting to leak oil) I have a 2006 Jetta TDI (I got it right at the end of availability before they stopped prodution.
View Staff Answer 

The Garrett 778445-0001 GT1749V Stage 1 Turbo Upgrade would be a great upgrade over your stock setup. You’d have to verify your engine code to be sure of proper fitment. (You'll find the engine code on a sticker attached to the timing belt cover. – This turbo will work with the BEW only.)

That just the turbo gives u thst much hp do u need injectors Turbo
View Staff Answer 

The GARRETT 778445-5002ST GT1749V STAGE 1 TURBO UPGRADE can SUPPORT up to 175 hp. In order to produce that horsepower, larger injectors, tuning, etc will be required.

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Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.