Detroit Diesel Turbocharger for 6-71T & 12V71T Aftercooled Engines - Rebuilt

Technical Overview
This rebuilt turbocharger is engineered for Detroit Diesel 6-71T and 12V71T aftercooled marine engines. It restores boost pressure, air mass flow, and fuel efficiency under continuous-duty operation. Each unit is remanufactured with high-grade turbine/compressor wheels, new journal and thrust bearings, precision clearances, and upgraded sealing systems to withstand marine thermal cycles and vibration.

Detailed Features
Units are fully disassembled, ultrasonically cleaned, and inspected; all wear components are replaced. The rotating assembly is dynamically balanced, and compressor/turbine flow is validated to match aftercooled Detroit Diesel specifications. Housing ratios are optimized — turbine A/R 1.03 and compressor 0.75 — to deliver responsive spool-up and stable peak boost across 6-71T and 12V71T applications. Ideal for professional overhauls where durability, efficiency, and consistent boost accuracy are critical.

FAQ

1. Which engines does it fit?
Detroit Diesel 6-71T and 12V71T aftercooled marine engines.

2. What comes in the box?
The turbocharger assembly only. Gaskets, studs, oil feed/return lines are sold separately.

3. How is quality verified?
Dynamic balancing of CHRA, boost/flow validation, and pressure integrity checks prior to shipment.

4. Do I need to prime the turbo?
Yes — pre-lube the oil inlet and hand-rotate the shaft before first start to avoid dry start-up.

5. Marine suitability?
Built for aftercooled marine duty with materials and clearances set for salt-air environments.

6. Warranty coverage?
Remanufactured unit with a 6-month warranty covering workmanship and materials.

From order to delivery, Diesel Pro provides technical accuracy, verified quality, and warranty protection on every part - including a 6-month warranty on this rebuilt turbocharger.