Detroit Diesel 8V71T – Engine Identification & Specs

Identification (from rebuild tag)

• Manufacturer: Detroit Diesel

• Engine Model: 8V71T (Turbocharged)

• Configuration: V-8, 2-stroke

• Aspiration: Turbocharged (no aftercooler shown)

• Rebuild Date: 05-05-2024

• Work Order: #4394

• Condition: Rebuild / Removal noted

• Rods: Std

• Mains: Std

Power Rating (handwritten)

• Rated Power: ~362 HP @ 2100 RPM

(This is a common industrial/oilfield rating for an 8V71T.)

Core Engine Specifications

Displacement

• Total Displacement: 9.3 L (568 cu in)

• Bore x Stroke: 4.25 in × 5.00 in

Power & Speed

• Rated Power: 350–365 HP

• Rated Speed: 2100 RPM

• Idle Speed: ~600 RPM

• Torque: ~850–950 lb-ft

Fuel System

• Type: Mechanical unit injectors

• Governor: Mechanical

• Fuel: Diesel

Cooling & Lube

• Cooling: Jacket-water cooled

• Oil Capacity: ~6.5–7 gallons

• Oil Pressure (hot): 40–55 psi

• Oil Type: SAE 40 (typical Detroit 2-stroke)

Electrical

• Starting System: 24 VDC

• Charging: 24 V alternator

Physical

• Dry Weight: ~2,100–2,300 lb

• Length: ~54 in

• Width: ~45 in

• Height: ~42 in

Application Fit (Very Common)

• Mud pumps (F-800 / F-1000 class)

• Cementing units

• Older blender units

• Mechanical frac auxiliaries

• Water transfer pumps