Marine Engines - John Deere

6125AFM PowerTech 12.5L

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341hp	400hp	455hp	526hp

TIER II Performance Data
	M4	M3	M2	M1
Rated Gross Power—bhp (kW)	526 (392)	455 (339)	389 (290)	341 (254)
Rated Speed—rpm	2100	2000	1900	1800
Low Idle Speed—rpm	600	600	600	600
Peak Torque—lb-ft (N • m)	1624 (2202)	1492 (2023)	1409 (1910)	1409 (1910)
Peak Torque Speed—rpm	1700	1600	1200	1200
Fuel Consumption—gal/hr (L/h)
2100	28.13 (106.5)	N/A	N/A	N/A
2000	23.43 (88.7)	24.33 (92.1)	N/A	N/A
1800	17.22 (65.2)	17.22 (65.2)	17.2 (65.1)	17.49 (66.2)
1600	11.97 (45.3)	11.99 (45.4)	11.97 (45.3)	12.31 (46.6)
1400	8.16 (30.9)	8.16 (30.9)	8.14 (30.8)	8.37 (31.7)
1200	5.12 (19.4)	5.12 (19.4)	5.1 (19.3)	5.26 (19.9)
1000	3.04 (11.5)	3.04 (11.5)	3.01 (11.4)	3.12 (11.8)

PROPULSION & AUXILIARY POWER General Data
Model	6125AFM75
Number of Cylinders	6
Displacement— cu. in. (L)	763 (12.5)
Bore and Stroke—in.(mm)	4.56 X 5.06 (127 x 165)
Aspiration	Turbo
Engine Type	In-line, 4-Cycle
Compression Ratio	17.0:1
Aftercooling System	Engine Coolant
Length—in. (mm)	56.1 (1426)
Width—in. (mm)	33.5 (850)
Height—in. (mm)	44.8 (1138)
Weight, dry—lb. (kg)	3142 (1425)
Maximum Installed Angle
Front Up—degrees	12°
Front Down—degrees	0°


FEATURES & BENEFITS
	Watercooled Turbocharger and Exhaust Manifold	Heat exchanger or Keel cooled
	Cooler and quieter environment for vessel and crew	High-capacity heat exchanger designed for reliable operation in adverse conditions
	Reduced external connections eliminates hoses and fittings that can leak or break	Keel cooler or heat exchanger options provide application flexibility
	Replaceable wet-type cylinder liners	High Torque and low rated rpm
	Excellent heat dissipation	Enables the engine to turn larger propellers at lower speed for best efficiency
	Hardened and precision machined for long life	Excellent vessel control and maneuvering
	Rebuild to original specifications	Lower rated rpm limits vibration and noise for better crew comfort
	Directed Top-liner Cooling	Fuel System
	Reduces upper liner temperature by as much as 100°F (54°C)	Electronically controlled high pressure common rail fuel system provides precise fuel delivery with variable timing resulting in excellent fuel economy and excellent performance
	Durable and reliable power cylinder components	3 - 5% generator droop governing
	Corrosion Resistant Components	Self-diagnostics and protection
	Provides engine protection from the effects of seawater	Electronic instrument panel with plain text messaging
	Gear Auxiliary Drive	Emissions
	Optional auxiliary drive for wash-down pumps, hydraulic oil pumps and air compressors	US EPA Marine Tier II Compliant
	Either-side Service	IMO Compliant
	Self diagnostics and protection
	Convenience plus fast and easy maintenance
	Electronic instrument panel with plain text messaging installation convenience plus fast and easy maintenance