Skip to content

12665348 Genuine GM Variable Geometry Turbo Actuator For Silverado Sierra 6.6L Diesel

P/N: 12665348 Manufactured by: GM
Original price $925.00 - Original price $925.00
Original price
$925.00
$925.00 - $925.00
Current price $925.00
3 in Stock
Condition: New
We accept:
  • PayPal
  • Venmo
Need help choosing the right part?Contact our support team
+1 828-705-1030
Monday – Saturday | 8:00 AM – 8:00 PM (EST)
2-3 Day Free Shipping
Return within 30-Days
Packed Ready to Ship
24/7 Expert Support
2-Year Warranty

Unit Auto Parts LLC provides a complimentary 2-Year Warranty on all automotive parts. Shop with confidence knowing your purchase is protected. Learn More

Description

The 12665348 variable geometry turbo actuator is a GM turbocharger control component used on 6.6L Duramax diesel engines. It adjusts the position of the turbocharger vanes to regulate boost pressure and maintain proper engine performance.

Vehicle Compatibility

Year Vehicle Engine Trims
2019 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2019 Chevrolet Silverado 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2019 GMC Sierra 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2019 GMC Sierra 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2018 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2018 Chevrolet Silverado 3500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2018 GMC Sierra 2500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2018 GMC Sierra 3500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2017 Chevrolet Silverado 2500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2017 Chevrolet Silverado 3500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2017 GMC Sierra 2500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2017 GMC Sierra 3500 HD 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2016 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2016 Chevrolet Silverado 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2016 GMC Sierra 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2016 GMC Sierra 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2015 Chevrolet Silverado 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2015 Chevrolet Silverado 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel High Country, LT, LTZ, WT
2015 GMC Sierra 2500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT
2015 GMC Sierra 3500 HD 6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel Base, Denali, SLE, SLT


General Specifications

Condition New
Part Number 12665348
Brand GM
Part Type Variable Geometry Turbo Actuator
Years 2015–2019
Vehicle Compatibility Chevrolet Silverado, GMC Sierra
System Compatibility Turbo & Exhaust Components
Dimensions 6.3 x 6.3 x 4.3 inches
Weight 2.90 lbs


Product Features

The 12665348 variable geometry turbo actuator is built to match factory performance and installation requirements:

  • Controls the position of the turbocharger variable vanes.
  • Regulates boost pressure based on engine operating conditions.
  • Designed for GM 6.6L Duramax diesel turbocharger systems.
  • Communicates with the engine control module for precise turbo control.
  • Matches factory mounting points and electrical connector configuration.
  • Manufactured to GM turbocharger control system specifications.

Application Notes

The 12665348 turbo actuator mounts directly to the variable geometry turbocharger used on compatible Duramax diesel engines. Proper installation allows the turbocharger to regulate boost pressure correctly during engine operation.

Always verify part number, engine configuration, and system type before installation.

Make an offer
Make an offer
Make an offer