L5P 17-23 66mm Duramax Brand New Turbocharger DM-L5P-66NNA Ryan's Diesel Service


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Ryans Diesel Service SKU: DM-L5P-66NNA

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The RDS L5P 66mm turbo is an excellent upgrade for your 2017-2023 GM L5P Duramax Diesel truck. It is built and balanced in-house with multiple RDS-exclusive components, resulting in an efficient, powerful drop-in turbo.

To address the core issue associated with the small factory-size turbine wheel, which causes high boost-to-drive pressure when paired with a larger than factory-size compressor wheel, we developed a turbine wheel size for better EGT and boost-to-drive pressure control.

If you are looking for a well-rounded drop-in turbo for your truck, look no further than the RDS L5P 66mm drop-in turbo. This unit does not include an actuator for guys who are looking for an upgrade and does not have an actual issue with your factory turbo/actuator.

Below are some of the futures of this turbo:

  • RDS exclusive 66mm 6 blade dual plane compressor wheel
  • RDS exclusive 76mm x 71mm 10 blade high flow turbine wheel
  • RDS exclusive modified vane cage
  • Upgraded bearings and oil piston rings
  • Retains factory exhaust brake
  • Brand new units - No core charge
  • Expect 650-700WHP with proper modifications
  • 2 year warranty against manufacture defect
  • It is strongly advised to run a minimum of a 50 percent over injector
  • For 17-23 Chevrolet Silverado/GMC Sierra 2500/3500 HD


  • Must swap your actuator over. If you need an actuator please purchase unit: DM-L5P-66N