Construction/Industrial Engines » Detroit » 6-71

Detroit 6-71 Specifications and Pricing Information

What is the price of a Detroit 6-71?

In the United States a used Detroit 6-71 construction/industrial engine is typically priced between $11,500 USD and $12,000 USD. Variation in price can be due to a number of factors including age, condition, location, and specifications.

Specifications

Cylinder configuration6, Inline
Engine displacement6.99 L, 426 cubic inch
Aspiration typeRoots blower scavenged (naturally aspirated), Turbocharged (optional)
Cooling systemLiquid-cooled

Detroit 6-71 description

The Detroit 6-71 is a rugged, two-stroke diesel engine from the legendary 71-series, built for heavy-duty industrial and construction applications. Known for its simplicity, longevity and strong low-end torque, the 6-71 has powered generators, pumps, compressors and marine installations for decades. It’s a workhorse choice when reliability and ease of maintenance matter.

Currently For Sale

  • Trusted Seller
    DETROIT 6-71 Power Units

    DETROIT 6-71 Power Units

    • Manufacturer: Detroit
    • Model: 6-71
    • Horsepower: 310 hp
    • Hours: 800 h

    310 HP 671T Detroit Diesel Power Unit, 800 Hours, Murphy Safeties, Key Start, Woodward Electronic Governor, Speed Adjust Dial, 24vdc System, Model # 10637305, Serial # 6A335293, #1/15.5 Delco Drive, Load Tested @...

    $6,720 USD
    Ephrata, PA
  • Trusted Seller
    Detroit Diesel 6-71

    Detroit Diesel 6-71

    • Manufacturer: Detroit
    • Model: 6-71
    • Cylinder configuration: Inline
    • Cooling system: Liquid-cooled

    Detroit Diesel 6-71 engine, removed from a small railroad locomotive. Has Jake Brakes under valve cover, some damage evident from careless removal. Engine test ran fine, no issues noted.

    $2,595 USD
    Carbondale, PA
  • Trusted Seller
    Detroit Diesel 6-71

    Detroit Diesel 6-71

    • Manufacturer: Detroit
    • Model: 6-71
    • Cylinder configuration: Inline
    • Cooling system: Liquid-cooled

    Detroit Diesel 6-71 engine, naturally aspirated, truck application, model # 1063-7100, 2 valve cylinder head, complete as pictured. GOOD RUNNING ENGINE, SEE VIDEO. GOVERNOR HOUSING IS BROKEN & NEEDS REPLACEMENT,...

    $2,295 USD
    Carbondale, PA
  • Trusted Seller
    Detroit Diesel 6-71 Truck Engine

    Detroit Diesel 6-71 Truck Engine

    • Manufacturer: Detroit
    • Model: 6-71
    • Cylinder configuration: Inline
    • Cooling system: Liquid-cooled

    Detroit Diesel 6-71 engine, naturally aspirated, right hand blower, left hand exhaust, complete option codes in pictures. ENGINE WAS TEST RUN, SOUNDS GREAT. STRONG OLDER RUNNING ENGINE, LOOKS TO BE A LOW ORIGINA...

    $2,695 USD
    Carbondale, PA
  • Trusted Seller
    1982 Detroit Diesel 6-71T Turbo

    1982 Detroit Diesel 6-71T Turbo Engine RUNS MINT! VIDEO! 275 HP 671 GM

    • Manufacturer: Detroit
    • Model: 6-71
    • Fuel type: diesel
    • Cylinder configuration: Inline

    Old Forge Power Equipment, Inc. Equipment Division Description: STRONG running engine, complete as pictured. RUNS AWESOME -- SEE VIDEO BELOW. 275 HORSEPOWER, FULL SPECS IN PICTURES. Valve cover was replaced due t...

    $3,595 USD
    Carbondale, PA
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