Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
Image of XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML
XDP

XDP Xpressor OER Series Reman GT3788VA Replacement Turbocharger XD556 For 2011-2016 GM 6.6L Duramax LML

SKU: XD556

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Description

Restore lost power and performance in your 2011–2016 Chevy Silverado or GMC Sierra 2500HD/3500HD 6.6L Duramax LML with the XDP Xpressor OER Series Reman GT3788VA Turbocharger XD556. This turbo is a direct-fit replacement designed to eliminate issues caused by worn bearings, sticking VGT vanes, or oil contamination in the original unit. Symptoms of a failing turbo may include reduced power, poor fuel economy, excessive smoke, high oil consumption, or noisy operation. The Xpressor OER Turbo provides factory performance and reliability while addressing common failure points of the original Garrett GT3788VA turbocharger.

Each XDP Xpressor OER Series Turbocharger follows a comprehensive remanufacturing process that ensures every component meets or exceeds OEM specifications. The turbo is fully disassembled, cleaned, and inspected for microscopic wear before being reassembled with precision-machined bearing surfaces, new seals, thrust plates, and fasteners. The rotating assemblies are balanced to strict OEM tolerances and 100% end-of-line tested through the full RPM range, including VGT function, hydraulic and pneumatic leak testing, and NVH analysis. Each unit includes a turbocharger installation kit, making this the perfect drop-in replacement for a smooth, reliable restoration of your Duramax engine’s boost performance.

The XDP Xpressor OER Series Reman GT3788VA Turbocharger is a high-quality turbo for your 2011-2016 Chevrolet Silverado 2500HD/3500HD or GMC Sierra 2500HD/3500HD. The drop-in design allows this stock replacement turbo to simply bolt in place and attach to all the existing factory connections. A turbocharger installation kit is also provided with upper and lower oil drain gaskets, oil feed and turbo coolant banjo seals, and an up-pipe to turbo gasket.

 

Features:

  • Remanufactured turbo meets or exceeds original equipment standards
  • Direct-fit replacement for factory Garrett GT3788VA turbocharger
  • Precision-machined bearing surfaces ensure smooth turbo operation
  • Includes complete installation gasket and seal kit for easy install
  • 100% end-of-line tested through full RPM range for verified quality
  • VGT function tested to ensure proper vane and unison ring movement
  • Hydraulic, pneumatic, and burst testing validate leak-free integrity
  • Backed by XDP’s 1-Year Warranty with refundable $500 core charge

Specifications:

  • Brand: XDP (Xtreme Diesel Performance)
  • Part Number: XD556
  • Turbo Model: Garrett GT3788VA (Variable Geometry Turbo)
  • Application: 2011–2016 GM 6.6L Duramax LML
  • Design: Remanufactured OEM-Style Replacement
  • Standards: Certified to IATF 16949 Manufacturing Standards
  • Testing: 100% End-of-Line NVH, Leak, and Burst Testing
  • Validation: Hot Gas Stand Performance Validation
  • Material: Cast Iron Housing with Billet Components

Included:

  • (1) XDP Xpressor OER Series Reman GT3788VA Turbocharger – XD556
  • (1) Turbocharger Installation Kit – includes upper and lower oil drain gaskets, oil feed and coolant banjo seals, and up-pipe to turbo gasket

Fitment:

  • 2011–2016 Chevrolet Silverado 2500HD 6.6L Duramax LML
  • 2011–2016 Chevrolet Silverado 3500HD 6.6L Duramax LML
  • 2011–2016 GMC Sierra 2500HD 6.6L Duramax LML
  • 2011–2016 GMC Sierra 3500HD 6.6L Duramax LML

Notes:

  • Direct Replacement
  • 1 Year / Unlimited Mileage Warranty
  • $500 Refundable Core Charge applies 
Fitment
Fitment

Product Specs

SKU:
XD556
Brand:
XDP

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