Challenger MT485D

The Challenger MT485D is a tractor produced by Challenger. It is equipped with a 299 ci 4.9 L engine. The listed engine power is Diesel (gross): 135 hp (AutoPower IV) / 100.7 kW. Transmission: Techstar CVT. Operating weight: 12500 lbs 5670 kg.

Engine Power

Diesel (gross): 135 hp (AutoPower IV) / 100.7 kW

Fuel & Capacities

64 gal 242.2 L

Transmission

Techstar CVT

Operating Weight

12500 lbs 5670 kg

Overview

	2014 - 2016 MT400D SeriesUtility tractor MT400D Series Utility tractor

Production
Manufacturer	Challenger (a part of AGCO)
Utility tractor

Variants
6615	similar Massey Ferguson model

Challenger MT485D Engine
AGCO Power 4.9L 4-cyl diesel
Fuel tank	64 gal 242.2 L
Exhaust fluid (DEF)	9.2 gal 34.8 L
Engine details ...

Challenger MT485D Power
Engine (gross)	135 hp 100.7 kW
PTO (claimed)	110 hp (AutoPower IV) 82.0 kW
	110 hp (Techstar CVT) 82.0 kW
	115 hp (AutoPower IV) 85.8 kW
Drawbar (tested)	99.0 hp 73.8 kW
PTO (tested)	136.9 hp 102.1 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	hydrostatic power
Wet disc brakes
Cab standard with air-conditioning.

Hydraulics
Type	closed center load sensing (CCLS)
	open center optional
Valves	2 to 4
SCV flow	15 gpm (open center) 56.8 lpm
	-unknown-
	29 gpm (CCLS) 109.8 lpm

Tractor hitch
Rear Type	III/II
Control	electronic lower link draft sensing
Rear lift (at 24"/610mm)	11400 lbs 5171 kg
Drawbar	Cat. 2

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000
	540/540E/1000
	540/540E/1000/1000E

Dimensions & Tires
Wheelbase	105 inches 266 cm
Weight	12500 lbs 5670 kg
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	175
	240 (2x 120)
	350 (2x 175)
Batteries	2
Battery CCA	600
Battery volts	12

References

Challenger MT400B Series published in 2013, by AGCO
Challenger MT400B Series published in 2014, by AGCO

Engine

Engine Detail — 299 ci / 4.9 L Diesel

Manufacturer	AGCO Power 49AWI
Configuration	turbocharged air-to-air intercooled diesel, 4-cylinder 16-valve, liquid-cooled
Displacement	299 ci 4.9 L
Bore/Stroke	4.251x5.276 inches 108 x 134 mm
Emissions	Interim Tier IV
Emission control	selective catalytic reduction (SCR)
Power (gross)	135 hp (AutoPower IV) 100.7 kW
	140 hp 104.4 kW
Fuel system	electronic high pressure common rail
Air cleaner	dual dry element
Pre-heating	thermostart
Rated RPM	2200
Starter	electric
Starter volts	12

Transmission

Transmission options
16-speed four speed power shift
24-speed six speed power shift
continuously variable transmission (CVT)

Transmission — AutoPower IV

Transmission	AutoPower IV
Type	four speed power shift
Gears	16 forward and reverse
Clutch	wet disc
Four power shift gears in four ranges.

Transmission — AutoPower VI

Transmission	AutoPower VI
Type	six speed power shift
Gears	24 forward and reverse
Six power shift gears in four ranges.

Transmission — Techstar CVT

Transmission	Techstar CVT
Type	continuously variable transmission (CVT)
Gears	infinite forward and reverse

Dimensions

Challenger MT485D Tires

Dimensions
Wheelbase	105 inches 266 cm
Shipping weight	12500 lbs 5670 kg
Flange rear axle
Bar rear axle	3.23 by 80 inches 82 by 2032 mm
Bar rear axle	3.23 by 105 inches 82 by 2667 mm
Bar rear axle	3.74 by 90 inches 94 by 2286 mm
Bar rear axle	3.74 by 113 inches 94 by 2870 mm

Tests

Tractor Tests
OECD 2794: diesel CVT 4WD
OECD 2833: diesel AutoPower IV 4WD

OCED Tractor Test 2794
Diesel CVT 4WD August 2013 - September 2013, Link: OCED Tractor Test 2794 file
PTO performance
Max power	136.9 hp 102.1 kW
Fuel use	7.7 gal/hour 29.1 l/hour
Power at rated engine speed	119.8 hp 89.3 kW
Fuel use	7.2 gal/hour 27.3 l/hour
Power at rated PTO speed	132.4 hp 98.7 kW
Fuel use	7.6 gal/hour 28.8 l/hour
Drawbar performance
Max power	87.9 hp 65.5 kW
Fuel use	6.9 gal/hour 26.1 l/hour
Pull at 8.17KPH
Max pull	13850 lbs 6282 kg
Pull at 3.62KPH

OCED Tractor Test 2833
Diesel AutoPower IV 4WD February 2014 - March 2014, Link: OCED Tractor Test 2833 file
PTO performance
Max power	136.5 hp 101.8 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Power at rated engine speed	119.4 hp 89.0 kW
Fuel use	7.4 gal/hour 28.0 l/hour
Power at rated PTO speed	133.8 hp 99.8 kW
Fuel use	7.7 gal/hour 29.1 l/hour
Drawbar performance
Max power	99.0 hp 73.8 kW
Fuel use	7.2 gal/hour 27.3 l/hour
Gear 3A used for power test.
Max pull	12350 lbs 5601 kg
Gear 1D used for pull test.

Photos

Challenger MT485D tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT485D based on its 135 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm)	Heavy Duty	Heavy primary tillage; semi-mounted hitch recommended.
Rotary Cutter / MowerMowing & Clearing	10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼	Heavy Duty	Wide swath pasture and crop residue shredding.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙	Commercial / Field Scale	Wide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage	5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机	Heavy Duty	High density baling; requires minimum 85 PTO HP.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Challenger MT485D.

Estimated Continuous Field Runtime: 9.1 hrs

Approximately 9.1 hours of continuous field operation at ~75% rated power on a full tank (64 gal / 242.3 L).

Estimated 75% Load Fuel Burn~7 gal/hr (26.6 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours