Shop OEM GENERAL MOTORS Part # 12642130 (12635325, 12642313). Turbocharger. 6.6 LITER DIESEL. Express, Savana; 6.6L Diesel. Silverado, Sierra; w/o Dual Turbo. Turbocharger Assembly - Repair or

Turbocharger Assembly.
A complete Turbocharger Assembly.

Turbocharger

Fits Express 2500, Express 3500, Express 4500, Savana 2500, Savana 3500, Savana 4500, Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. Express, Savana; 6.6L Diesel. Silverado, Sierra; w/o Dual Turbo.
Turbocharger Assembly - Repair or Replace
If your is equipped with a turbo and you've noticed a reduction in acceleration, excessive blue-gray smoke from the exhaust, or a loud whine in addition to your check engine or glow plug light, your turbo may need to be replaced or repaired.