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Garrett UTW7801 Turbocharger Assembly
Garrett UTW7801 Turbocharger Assembly - Image 2
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Garrett UTW7801 Turbocharger Assembly


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Turbo ModelUTW7801
Garrett ModelGT4708BJNS
Turbine Housing A-R1.03
Engine Displacement14.0L
Engine Configuration6 Cylinder
Fuel TypeDiesel
Cooling TypeWater Cooled (Turbine Housing), Oil Cooled (Bearing Housing)
Compressor Wheel Diameter108 mm
Turbine Wheel Inducer/Exducer53 mm / 65 mm
Chra Part Number451742-0007 / 451742-5009S
Bearing Housing Part Number449072-0003
Back Plate Part Number442732-0005
NSN Number2950015977468
Application Years2001+
Net Weight38.5 kg
Package Dimensions55 × 40 × 40 cm

Manufacturer No.

  • 707728-5004S
  • 707728-0004
  • 707728-0001
  • 707728-0005
  • 707728-5001
  • 707728-5001S
  • 707728-5005
  • 707728-5005S
  • GT4708BJNS
  • 451742-5009S
  • 451742-0007
  • 449072-0003
  • 442732-0005

OEM Part No.

  • 23529009
  • 23529014
  • R23529009
  • R23529014
  • E23529009
  • E23529014

Engine Part No.

  • Detroit Diesel Series 60 14.0L
  • MTU Detroit Diesel Series 60 14.0L

Interchange No.

  • 2950015977468

Fitment Vehicles

  • Marine Vessels with Detroit Diesel Series 60 14.0L Engine (2001+)
The Garrett UTW7801 (model GT4708BJNS) is a water-cooled turbocharger designed for the MTU Detroit Diesel Series 60 14.0L six-cylinder marine diesel engine (2001 model year onward). It features a 1.03 A/R turbine housing and utilizes a 449072-0003 oil-cooled bearing housing with water-cooled turbine housing integration. The core rotating assembly (CHRA) references include 451742-0007, 451742-5007S, 451742-0009, and 451742-5009S. The compressor wheel measures 108 mm; the turbine wheel measures 53 mm inducer by 65 mm exducer. This unit serves as a direct OEM replacement for Detroit Diesel part numbers 23529009, 23529014, R23529009, E23529009, and E23529014. National Stock Number (NSN) 2950015977468 applies.