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Diesel Engines

ALCO 251 F
 

ALCO 251 F

The ALCO 251 F engine is universally recognized for its durability and reliability, high specific output, and low specific fuel consumption. This rugged 4-stroke engine is available in 12 and 18-cylinder configurations and provides 1310 to 2826 kWe of power. This engine features a forged alloy crankshaft, welded counterweights, fabricated steel cylinder block with redesigned camshaft bearing supports, and an under slung crankshaft that is carried in forged steel saddles.

 

Dimensions

Cyl. Dimensions (mm) Dry Weight kg (lbs)
A B C
12 8573 3486 2692 25400 (56000)
16 9712 34100 (75200)

 

Power Rating

Cyl. 50HZ 750 RPM kWe 50HZ 1000 RPM kWe 60HZ 900 RPM kWe 60HZ 1200 RPM kWe
12 1309 1743 1567 2009
16 1743 2324 2091 2676

 

Engine Specifications

Cylinder Configuration 12V, 16V
Cylinder Bore - mm (in) 229 (9.0)
Piston Stroke - mm (in) 267 (10.5)
Cycle 4 Stroke
Displacement/Cylinder - L (cu in) 10.9 (668)
Mean Piston Speed - m/s (ft/s) 6.4-10.7 (21.0-35.0)
BMEP - bar (psi) 15.8-17.9 (230-260)

Notes:

All ratings subject to factory approved application.

Ratings are based on:
90°F (32.2°C) ambient temp.
28.25 in Hg. (71.6 cm Hg) barometric pressure (min)
1500 ft (457 m) altitude (max)

Standby ratings available

The kWe ratings are based on generators with nominal efficiencies of 96.2%