GT1446V 55565353 781504-5001S Turbocharger for GM 1.4L Turbo Ecotec

The GT1446V (55565353) is a Garrett turbocharger for the Chevrolet Cruze, Sonic, Trax, Orlando, and Buick Encore with the 1.4L Turbo engine (Ecotec LUJ/LUV), from 2010 onward. This is one of the most common turbo replacements in the compact car segment. The 1.4L Turbo is used across millions of GM vehicles. Garrett part 781504, GM OEM 55565353. Built new, dynamically balanced, ships with gaskets. We supply shops and distributors.

Turbo Model

GT1446V (Garrett)

OEM / Interchange Numbers

  • 55565353
  • 781504
  • 781504-5001S
  • 781504-5002S
  • 781504-5004S

Application

2010+ Chevrolet Cruze, Sonic, Trax, Orlando and Buick Encore with 1.4L Turbo Ecotec

Service & Support

  • 1-Year Warranty
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FAQ

This GT1446V fits 2010 and later Chevrolet Cruze, Sonic, Trax, Orlando and Buick Encore models with the 1-4L Turbo Ecotec engine.

P0299 underboost code and wastegate rattle at idle are the two most common symptoms. Oil smoke and loss of power indicate bearing wear.

Brand new, dynamically balanced. No core charge. One-year warranty.

Yes. US stock, volume pricing for shops and distributors. High-volume replacement part.

OE and interchange numbers are 55565353, 781504, 781504-5001S, 781504-5002S and 781504-5004S.

GT1446V for Chevy Cruze / Sonic / Trax / Buick Encore 1.4T

The GM 1.4L Turbo Ecotec is one of the highest-volume turbocharged engines in North America. It powers the Cruze, Sonic, Trax, and Buick Encore — all popular compact cars. The GT1446V is the stock turbo and is a very common replacement part.

Common 1.4L Turbo applications

  • 2011-2015 Chevrolet Cruze 1.4T
  • 2012-2020 Chevrolet Sonic 1.4T
  • 2013-2021 Chevrolet Trax 1.4T
  • 2013-2021 Buick Encore 1.4T
  • 2012+ Chevrolet Orlando 1.4T

Common failure symptoms

  • Check engine light with boost codes — P0299 underboost is the most common code.
  • Oil leak at turbo — oil from the turbo drain into the exhaust. Blue smoke.
  • Wastegate rattle — the internal wastegate flapper develops play and rattles at idle. Very common on higher-mileage 1.4T engines.
  • Loss of power — turbo shaft play causes boost loss.

Cross Reference Numbers

This turbocharger replaces the following OE and interchange numbers:

  • 55565353
  • 781504
  • 781504-5001S
  • 781504-5002S
  • 781504-5004S

Related configuration: no additional GT1446 variant numbers are added.

Installation and Care

  • Find out why the old turbo failed before installing the new one. Oil starvation or contaminated oil will destroy the replacement the same way.
  • Change the engine oil and filter. Flush or replace the oil feed line.
  • Flush or replace the oil feed line to reduce the risk of restriction and coking.
  • Replace the mounting and oil drain gaskets. Prime the turbo with clean oil before startup.
  • Inspect the wastegate for free movement and check the intake and exhaust connections for leaks.

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