GT3788VA 12642129 Turbocharger for 2011-2016 6.6L Duramax LML

This Garrett GT3788VA fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 6.6L Duramax LML, replacing OE 12642129, 12642314, 848212-5002S and related numbers. The correct VVT unit for LML trucks with sticking vanes or worn bearings. New, calibrated and balanced, no core charge, with volume pricing for shops.

Turbo Model

Garrett GT3788VA (variable geometry)

OEM / Interchange Numbers

2T114, 800799-0003, 12642129, 12642314, 12642315, 848212-5002S, 848212-0002, 848212-5002

Application

2011-2016 Chevrolet Silverado / GMC Sierra 2500 3500 with 6.6L Duramax LML

Service & Support

  • 1-Year Warranty
  • US Stock, Fast Dispatch
  • Bulk Orders Welcome
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FAQ

2011-2016 Chevrolet Silverado / GMC Sierra 2500 3500 with 6.6L Duramax LML

It replaces 2T114, 800799-0003, 12642129, 12642314, 12642315, 848212-5002S, 848212-0002, 848212-5002. If your number is not listed, send it with the old part's dataplate photo and we confirm the match before shipping.

Brand new — new components throughout, not remanufactured. No core deposit and nothing to return.

A 1-year unlimited-mileage warranty against material and workmanship defects, handled directly by our US-based team. Details on the warranty and after-sales page.

Yes. Shops, fleets and resellers get consistent wholesale pricing from US inventory, with white-label support for distributors. Send the part number and quantity for a quote.

GT3788VA 12642129 Turbocharger for 2011-2016 6.6L Duramax LML — Product Details

  • OE / Interchange Numbers: 2T114, 800799-0003, 12642129, 12642314, 12642315, 848212-5002S, 848212-0002, 848212-5002
  • Application: 2011-2016 Chevrolet Silverado / GMC Sierra 2500 3500 with 6.6L Duramax LML
  • Condition: Brand new — not remanufactured, no core charge
  • Warranty: 1-year unlimited-mileage, handled by our US team
  • Stock: US warehouse inventory, orders processed within 24 hours

Need more than one? We supply shops, fleets and resellers at consistent wholesale pricing, with white-label support for distributors. Send the part number for a volume quote — see the wholesale program and our warranty policy.