Frontier Power Products - John Deere 8.1 Litre Engines

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John Deere 8.1 Litre Diesel Engines
Features & Benefits
Specification Sheets
Performance Data
Genset Ratings
Engine Dimensions

Smart and powerful, this 6-cylinder 8.1L engine features an electronically controlled John Deere fuel system to monitor critical functions. Directed top-liner cooling reduces oil consumption and emissions. Optional rear PTO drives medium or large hydraulic pumps or compressors.

Features & Benefits
Directed Top-Liner Cooling
Directing coolant to upper end of the liner reduces liner temperatures by up to 100°F (54°C), improving power cylinder durability, head gasket life, and reducing oil consumption and emissions
SAE J1939 Standard Communication Link
Industry standard, which provides an interface with vehicle systems, like transmission, hydraulics and various accessory drives minimizing machine complexity and reducing vehicle total installed cost
John Deere Electric Controls
John Deere electronically controlled fuel systems monitor critical engine functions and either derates or shuts down (override capability provided) and engine to prevent costly engine repairs Built-in controls eliminate need for costly add-on engine warning/shutdown systems and associated devices Service diagnostics and error codes automatically stored for later retrieval, increasing machine uptime Performance connector part of engine wiring harness which allows for programming of multiple power curves and droop or isochronous governor regulation
Either-Side Service
Combination oil fill/dipstick available on either side of the engine, greatly simplifying engine installation
Gear auxiliary drive
Left hand gear auxiliary drive available which provides up to 60 hp (45 kW), intermittent
Self-adjusting Poly-vee Fan Drive
Self-adjusting, eight-groove, poly-vee fan drive provides multiple fan drive ratios and fan heights that can be matched to specific application requirements Poly-vee design provides more than twice the drive capacity of comparable vee-belts
Additional Features
8.1L engine includes gear-driven water pump, improved accessory mounting, gear-driven auxiliary drive, self-adjusting poly-vee fan drive, air compressors, and high-mount A/C compressor options
Optional Rear PTO
Rear PTO is an integral part of the flywheel housing and provides a means for driving medium/large hydraulic pump(s), and air compressors Available in SAE #1 or SAE #2 flywheel-housing configuration for dry applications 1.3:1 output ratio allows the use of smaller, higher speed hydraulic pumps Gear train, pump drives, and flanged output drive are capable of up to 300hp/224kW (750 ft-lbs/1018 N.m torque) on an intermittent basis Right-hand side pad standard with optional left-hand side pad SAE standard "C" and optional "B", "D" mounting pads and flange output drives

Specification Sheets
Click here for engine specification sheets from John Deere's website (opens in a new browser window)

Industrial engine performance data
Model	Emission Certified	Rated Power Intermittent	Rated Power Continuous	Peak Torque Intermittent	Fuel Economy BSFC*	Aspiration
6081HF070	Tier 2		200 hp (149 kW) @ 2200 rpm	644 lb-ft (873 N.m) @ 1500 rpm	0.363lb/hp-hr (221 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		225 hp (168 kW) @ 2200 rpm	726 lb-ft (984 N.m) @ 1500 rpm	0.355 lb/hp-hr (216 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		250 hp (186 kW) @ 2200 rpm	808 lb-ft (1095 N.m) @ 1500 rpm	0.355 lb/hp-hr (216 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		275 hp (205 kW) @ 2200 rpm	885 lb-ft (1200 N.m) @ 1500 rpm	0.357 lb/hp-hr (217 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		300 hp (224 kW) @ 2200 rpm	965 lb-ft (1309 N.m) @ 1500 rpm	0.349 lb/hp-hr (213 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		325 hp (242 kW) @ 2200 rpm	1045 lb-ft (1417 N.m) @ 1600 rpm	0.344 lb/hp-hr (210 g/kWh) @ 2200 rpm	Air-to-air
6081HF070	Tier 2		350 hp (261 kW) @ 2200 rpm	1050 lb-ft (1424 N.m) @ 1500 rpm	0.345 lb/hp-hr (210 g/kWh) @ 2200 rpm	Air-to-air
*BSFC - Brake specific fuel consumption - definition

Generator Set Engine Ratings
Engine Model	Emission Certified	Rated RPM	Engine Power Prime		Prime Ratings		Engine Power Intermittent		Intermittent Ratings
Engine Model	Emission Certified		kWm	hp	kVA	kWe	kWm	hp	kVA	kWe
6081T	Tier 1	1800	142	190	147-154	118-123	157	211	164-172	131-138
6081T	Tier 1	1800	166	223	172-180	138-144	194	260	202-211	162-169
6081A	Tier 1	1800	168	225	174-182	139-146	187	250	185-204	156-163
6081A	Tier 1	1800	201	270	209-219	167-175	224	300	234-244	187-195
6081H	Tier 2	1800	210	282	226-236	181-189	231	310	249-261	200-208
6081H	Tier 1	1800	218	292	226-236	181-189	240	322	251-262	201-210
6081A	Tier 1	1800	220	295	228-238	182-190	259	347	270-282	216-226
6081H	Tier 2	1800	236	317	254-266	203-212	260	349	281-293	225-235
6081H	Tier 2	1800	263	353	283-295	226-236	289	368	312-326	250-261
6081H	Tier 2	1800	289	388	311-325	249-260	318	426	343-359	275-287
Generator ratings explained 1500 RPM / 50hz ratings available on request.

Engine dimensions
Engine Model	Cylinders	Displacement	Length		Width		Height		Weight
Engine Model	Cylinders	Displacement	mm	in	mm	in	mm	in	kg	lb
6081A	6	8.1 L (496 cu. in)	1210	47.6	698	27.5	1138	44.8	796	1755
6081H	6	8.1 L (496 cu. in)	1210	47.6	599	23.5	1152	45.4	776	1711
6081T	6	8.1 L (496 cu. in)	1210	47.6	599	23.6	1138	44.8	735	1620
Dimensions are based on engine with “standard configuration" including flywheel, flywheel housing, and electronics. Actual numbers may vary depending on selected options.

upated December 2006