John Deere 6125R Utility Tractor

John Deere 6125R Utility Tractor

New & Used John Deere 6125R Utility Tractor for Sale Lease John Deere Farm Machinery John Deere Farm Equipment John Deere Commercial Equipment John Deere Commercial Worksite Equipment John Deere Lawn & Garden Equipment.  Cross Implement a John Deere Dealer; Serving the Midwest region from Illinois, Iowa, Indiana & Missouri.


John Deere 6125R Utility Tractor

Check out the 125-engine-hp* 6125R Tractor and find that customers will boost productivity with these state-of-the-art features: GreenStar™ 3, CommandCenter™, a PowerTech™ PVX 4.5 L engine, a wide array of efficient transmissions including infinitely variable transmission (IVT™), PowrQuad™, and AutoQuad™, and high-performance pressure-and-flow-compensated hydraulics with 30 gpm.

Packed with advanced features, these deluxe tractors are designed with the owner/operator in mind, delivering greater comfort, efficiency, performance, and versatility. Built on the industry-exclusive full-frame design, these tractors are efficient workhorses.
Click on any of the functional areas below to learn more about specific product features.
*per 97/68EC

John Deere 6125R Series Tractors feature the reliable and proven PowerTech PVX/PSX engines. These air-to-air aspirated engines deliver constant power over a wide range of engine revolutions per minute (rpm) with a power bulge above rated power to provide excellent torque in demanding applications.

John Deere Utility Tractors

Engines deliver a constant power range of 30 percent with a power bulge of 10 percent.

  • High-pressure common rail (HPCR) fuel injection system and other key engine parts work together to sense engine load and then instantly respond as needed to pull through tough soil conditions.
  • Engine rpm fluctuations are reduced to minimize the need to downshift the transmission.
  • Fewer shifts results in less ground speed variations, providing higher overall tractor productivity.

The engine is an integrated part of the full frame concept. The engine is connected to the frame using vibration-absorbing isolators. Further vibration reduction is achieved by utilizing a heavy-duty torsional damper in the Cardan shaft, coupling the flywheel to the clutch housing.
This technique:

  • Eliminates engine block stress, because the engine is no longer a structural part of the tractor.
  • Reduces noise and vibration transfer to other tractor components.

To match the engine power characteristics and improve economy of operation, the rated engine speed is 2100 rpm.

The PowerTech PVX 4.5L and 6.8L and PowerTech PSX engines feature directed cooling around the top of the cylinder liners.
Top liner cooling lowers temperatures at the top of the cylinder for durability of the piston and piston rings. This also allows the piston rings to be farther up on the piston, decreasing the amount of dead air in the combustion process, increasing efficiency, and lowering emissions.
The block rib design minimizes engine noise by stabilizing the cylinder liners.

All PowerTech PVX and PSX 4.5L and 6.8L engines use aluminum pistons for high strength and resistance to wear. The large-diameter piston bowl with high-dome design works with the four-valve head to provide greater airflow with less restriction both in and out of the combustion chamber. This greatly improves economy and lowers exhaust emission levels.
Cooled, filtered oil is constantly sprayed on the underside of each piston. The low-friction piston design incorporates an integral directed oil galley, taking full advantage of the oil spray jet to improve piston and ring cooling, extending life.
The oil spray jet provides excellent underside piston dome cooling, as well as lubrication of the piston pin and pin bushing and cylinder wall lubrication. Oil spray nozzles are positioned on support ribs over main bearings to supply cooled and filtered oil to the pistons.

Piston pin features:

  • Full floating design utilizes all bearing surfaces of the pin for more even load distribution, even wear, and long life.
  • Large diameter and thick walls ensure maximum rigidity.
  • Highly polished and hardened surface of pin reduces wear.
  • Slip fit and retained in pistons by snap rings.

Wrist pin lubrication comes from high-volume piston spray jet.

Piston pin features:

  • Full floating design utilizes all bearing surfaces of the pin for more even load distribution, even wear, and long life.
  • Large diameter and thick walls ensure maximum rigidity.
  • Highly polished and hardened surface of pin reduces wear.
  • Slip fit and retained in pistons by snap rings.

Wrist pin lubrication comes from high-volume piston spray jet.

Wet sleeved, flanged cylinder liners are made of compact graphite iron for greater strength and stiffness.
Directed top-liner cooling reduces oil consumption and enhances combustion efficiency by reducing wear in the top ring turnaround area and improving piston ring performance. 

A dynamically balanced crankshaft is constructed of heat-treated, high-carbon forged steel for maximum strength. Journal surfaces are induction hardened for long life.
A flanged-style thrust bearing is used for long life. Main crankshaft bearing caps are machined while fastened to the block to ensure precise crankshaft alignment.
The John Deere exclusive WEAR-GARD™ connecting rod bearing design increases lubricating oil film thickness in the bearing area, where high loads are present. This further improves durability and reliability.

The 6.8L engine uses a camshaft made from 1080 steel to provide the strength and durability required to operate four valves in each cylinder.
Six large camshaft bearing journal diameters are sized to handle the heavy-duty, four-valve head. Two additional camshaft bearings provide added strength and reliability. The camshaft lobe profile design is complemented by the intake and exhaust valve shapes and sizes for power and efficiency.
The initial valve lash adjustment is 2000 hours, then every 2000 hours thereafter.

Additional four-valve cylinder head benefits are as follows:

  • Positions the injector in the center of the piston and combustion chamber for even piston loads and mixing of fuel
  • Maintains cooler head temperatures through a high rate of airflow
  • Raises the air-fuel ratio while reducing internal operating temperatures for improved reliability and fuel efficiency
  • Valves and replaceable valve seat inserts designed to minimize flow restriction (engine uses special powdered metal valve guide inserts with impregnated lubricant for proper seating and to prolong wear)
  • Offers excellent pull-through characteristics delivered by constant high torque
  • Allows faster field operating speeds

There is improved lugging ability throughout the entire working range with significant productivity improvements at low engine rpm.
The intake manifold is located above the exhaust manifold.

  • Location allows intake air to go directly down through the head with minimal turning to aid in engine breathing characteristics.

The engine width is not changed greatly, allowing for a narrow tractor hood and excellent row-crop visibility.

Injectors deliver the same fuel pressure level to cylinders from the high-pressure common rail:

  • Magnetic valve provides fast and precisely metered fuel injection.
  • Six-hole nozzles give optimum spray patterns and fine fuel atomization.

Performance-matched fuel consumption delivers reduced fuel costs per acre.

Every PowerTech PVX/PSX engine utilizes the high-pressure common rail (HPCR) fuel system to supply fuel to injectors. The high-pressure fuel pump instantly responds to requirements for more or less fuel flow or pressure. The pressure is generated by the gear-driven piston pump. This electronically controlled and high-pressure pump delivers pressure on demand according to the application requirements.


  • High-pressure common rail delivering exactly the same fuel pressure level at all of the injectors
  • High responsiveness under all load and speed conditions, which extends the engine working range to lower speeds, delivering more power and productivity in the field at outstanding fuel saving engine speeds
  • Performance-matched fuel consumption delivering reduced fuel costs per acre

The ECU uses signal inputs from sensors and pre-programmed performance modeling to control critical engine functions such as:

  • Fuel quantity
  • Injection timing
  • Air-to-fuel ratio
  • Multiple fuel injections
  • Amount of cooled exhaust gas recirculation (EGR)
  • A host of other control parameters to deliver peak fuel economy and engine performance

Each injector is controlled individually by the ECU. The ECU turns the injector on and off during each firing cycle to control the fuel delivery into each cylinder. The ECU can sense engine speed and load changes at a rate of 100 times per second and respond instantly to them. Load and speed sensing allows each cylinder’s fuel delivery rate to be adjusted independently at the individual injector.  With each injection cycle, the ECU can make the following adjustments on the go:

  • Number of injections
  • Fuel pressure in the common rail
  • Start of injection
  • Duration of injection

This management system is connected to the transmission allowing the engine and transmission to respond simultaneously.
Cold-weather and high-altitude compensation are also precisely controlled for quality starts regardless of weather and proper power levels at high elevations.

John Deere offers the stepless AutoPowr/IVT transmission for the John Deere 6125R Tractor for those looking for exact speeds to match any application. The fully electronically controlled engine and regulated transmission combine to provide maximum productivity and comfort:


John Deere AutoPowr/IVT transmission







  • Speeds from 50 m/h (0.03 mph) to 40/50 km/h (25/31 mph) 
  • Allows for creeper speeds 
  • Below 600-m/h (0.37-mph) the travel speed is independent of engine speed 
  • Different transmission settings, depending on the application


  • Easy to operate 
  • Drive and work comfortably 
  • Save time and money by setting the exact speed for optimum implement performance 
  • Less shifting time means better management of the implement 

Easy speed control through the speed control lever: 

  • Quick and precise speed changes 
  • Fine-tuning via the speed wheel
  • Two steps in the slot of the speed control lever to program two set speeds 
  • Speed feedback on the analog dashboard: The needle shows the actual speed; red lights around the needle show the set speed 
  • Easy to handle exact speed settings  through CommandCenter™ and the speed wheel


If the John Deere 6125R tractor is equipped with the AutoPowr/IVT transmission, the speed control lever is embedded in the CommandARM. With the CommandARM, the most-utilized tractor functions are integrated in the armrest:

  • Speed control lever
  • Electrical throttle
  • Electrohydraulic selective control valves (SCVs)  
  • iTEC™ switch  
  • AutoTrac™ switch  
  • Power take-off (PTO)
  • Hitch control

The John Deere 6125R Tractor Triple-Link Suspension (TLS™) Plus suspended front axle provides operator comfort and power to the ground

John Deere 6125R Tractor Triple-Link Suspension (TLS(TM)) Plus









TLS Plus provides higher operator comfort by reducing fatigue and increases productivity.

Available for all 6R Series Tractors, TLS Plus has the following features:

  • Self-leveling system with +/- 50-mm (1.97-in.) suspension travel under all axle load conditions.
  • Permanent engagement of axle suspension with automatic adjustment of the sensitivity and suspension rate for the axle load (from a heavy rear-mounted implement to heavy front loader work)
  • Up to 7 percent more power to the ground

The TLS Plus features:

  • Auto mode: This mode is automatic progressive suspension rate adjustment, which prevents the risk of knocking on the suspension end stops even in the roughest conditions.
  • Max mode: For special application like pallet work or earthmoving, the hydraulic pressure in the TLS Plus system is increased and this reduces the movement of the suspension.
  • Manual mode: This mode is for lifting and lowering the front end of the tractor (for example, picking up a weight). This allows full manual control of the axle height to assist in mounting or dismounting front and rear implements.


John Deere 6125R Tractor Official Test

Nebraska Test number OECD Test 2804 - Nebraska Test Summary 930

John Deere 6125R Tractor Engine

Manufacturer John Deere PowerTech™ PVX
Engine family ---
Aspiration Air-to-air aftercooling and cooled exhaust gas recirculation
Cylinders/Displacement, cu. in. (L) 4 / 4.5 L4 / 275 cu in.
Cylinder Liners Wet sleeve
Fuel tank capacity, US Gal. (L) (Open; Cab) ---
Standard 220 L58 U.S. gal.
Optional 265 L70 U.S. gal.
Underhood muffler Yes

John Deere 6125R Tractor Performance

Advertised PTO hp (kW) @ Rated rpm 75 kW @ 2100 101 hp @ 2100
Official PTO hp (kW) @ Rated rpm 76.7 kW @ 2100 102.9 PTO hp @ 2100
@ Standard PTO @ Eng rpm 86.4 kW @ 1961 115.9 PTO hp @ 1961
Maximum @ Eng rpm 87.9 kW @ 1800 117.9 PTO hp @ 1800
Advertised Engine hp (kW) @ Rated speed 93.2 kW @ 2100 125 engine hp @ 2100
Max Unballast Drwbr hp (kW) @ Eng rpm 80.3 kW @ 1814 107.7 hp @ 1814
Maximum Torque (PTO) @ rpm, lb-ft (Nm) 523.6 Nm @ 1400 386.2 lb-ft @ 1400
Max Torque Rise (80% rtd spd) @ Eng rpm 41.0 @ 1700
Maximum Torque Rise % (PTO) @ Eng rpm 50.0% @ 1400

John Deere 6125R Tractor Fuel Use, U.S. gal./hr & hp hr/gal. at:

PTO @ Rated Eng rpm 25.73 & 15.13 @ 2100 U.S. gal./hr6.80 & 15.13 @ 2100 gal.
Standard PTO Speed @ Eng speed 27.17 & 3.18 @ 1961 U.S. gal./hr7.18 & 16.14 @ 1961 gal.
Maximum PTO Power @ Eng rpm 26.98 & 3.26 @ 1800 U.S. gal./hr7.13 & 16.54 @ 1800 gal.
Maximum Engine Power @ Eng rpm 25.55 & 2.65 @ 2099 U.S. gal./hr6.75 & 13.45 @ 2099 gal.
Max Unballasted Drawbar Power @ Eng rpm 27.67 & 2.90 @ 1814 U.S. gal./hr7.31 (27.67) & 14.73 (2.90) @ 1814 gal.
75% Load, Full Engine rpm (Unballasted) 25.78 & 2.44 @ 2193 U.S. gal./hr5.81 & 12.39 @ 2193 gal.
75% Load @ Reduced rpm (Unballasted) 19.72 & 2.72 @ 1825 U.S. gal./hr5.21 & 13.81 @ 1825 gal.

John Deere 6125R Tractor Transmission

Std. Transmission; Forward/Reverse 24/24 AutoQuad PLUS ECO; 40 km/h24/24 AutoQuad PLUS ECO; 25 mph
Opt. Transmission; Forward/Reverse PowrQuad PLUS 16F/16R (30); AutoQuad PLUS ECO 24F/24R Transmission (40);  AutoQuad PLUS ECO 24F/24R (50); Infinitely Variable Transmission (40); Infinitely Variable Transmission (50)PowrQuad PLUS 16F/16R (19); AutoQuad PLUS ECO 24F/24R Transmission (25);  AutoQuad PLUS ECO 24F/24R (31); Infinitely Variable Transmission (25); Infinitely Variable Transmission (31) mph
Reverser Left-hand base
On-the-Go Shifting (Yes/No/Partial) Yes
Clutch; Wet/Dry Wet
Creeper Included with IVT; Optional on PowrQuad and AutoQuad transmissions

John Deere 6125R Tractor Power Take-Off (PTO)

Standard 540/1000 RPM, 1-3/8 In. Independent Rear Reversible PTO
Optional 3-Speed 540/540E/1000 Rear Reversible PTO with Power Assisted PTO Shifting
PTO Speeds @ Engine rpm 540 @ 1967; 1000 @ 1962
PTO Actuation Electrohydraulic

John Deere 6125R Tractor Hydraulics

Type Closed-center, pressure/flow compensated
Pump Rated Output, GPM (L/min.) ---
Standard 114 L/min30 gpm
Optional ---
Rated Flow @ One SCV, GPM (L/min.) 123.5 L/min32.6 gpm
Max Output @ SCV Couplers, GPM (L/min.) 125 L/min33 gpm
Maximum Operating Pressure, psi (kPa) 20000 kPa2900 psi
Maximum Hydraulic Power, hp (kW) 35.1 kW47.1 hp
Hitch Draft Control Load Sense Type Electrohydraulic
Remote Control Valves Available 2-450 Series mechanical SCVs standard, up to 4 -450 Series electronic SCVs optional
Hitch Category (SAE Designation) 2/3N
Hitch Lift Cap. lb (kg) @24 in. Bhnd Lift Pt. ---
OECD ---
Standard 29.9 with 70 mm cylinders kg6720 with 70 mm cylinders lb
Optional 40.3 with 80 mm cylinders kg9065 with 80 mm cylinders lb
Hitch Lift Cap. lb (kg) @24 in. Bhnd Lift Pt. (SAE) ---
Standard N/A
Optional N/A
Hitch Lift Cap. lb (kg) @24 in. Bhnd Lift Pt. (ASAE) ---
Standard N/A
Optional N/A
Sensing type Electronic lower link
Joystick SCV control Mechanical or electronic

John Deere 6125R Tractor Final Drive

Type Inboard planetary three pinion
Differential controls Electrohydraulic
Availability ---
Front Yes
Front & Rear ---
Engage On-the-Go Rear Differential Lock Yes
Axle Type Flange Axle
Brakes, Type and Control Wet-disk hydraulic power brakes

John Deere 6125R Tractor Operator Station

Rollover Protective Structure, OOS ---
Rigid - Foldable - Telescopic ---
Platform - Flat/Straddle ---
Gearshift Location - Console/Floor ---
Cab ComfortView™ cab
Doors 2 panorama doors
Platform - Flat/Straddle Flat
dB(A) Rating 70.2 dBA
Seat Suspension System Air suspended seat

John Deere 6125R Tractor 2WD Dimensions

Wheelbase, in. (mm) 2580 mm102 in.
Front Tread Range, in. (mm) 1485-2438 mm58.5-96 in.
Rear Tread Range, in. (mm) 1604-2302 mm63.1-90.6 in.
Minimum Rear Tread Setting, in. (mm) N/A
Front Axle Clearance, in. (mm) 469 mm18.5 in.
Turning Radius w/Brakes, ft (m) N/A
Turning Radius w/o Brakes, ft (m) N/A
Unballasted Operating Weight, lb (kg) N/A
Approx. Ship Wgt, lb (kg) Open; Cab 5100 kg11244 lb

John Deere 6125R Tractor MFWD Dimensions

Wheelbase, in. (mm) 2580 kg102 lb
Front Tread Range, in. (mm) 161 to 1924 mm63.6 to 75.7 in.
Front Axle Clearance, in. (mm) 469 mm18.5 in.
Turning Radius w/Brakes, ft (m) N/A
Turning Radius w/o Brakes, ft (m) N/A
Limited Slip Differential N/A
Unballasted Operating Weight, lb (kg) N/A
Approx. Ship Wgt, lb (kg) Open; Cab 5440 kg11990 lb

John Deere 6125R Tractor 4WD Dimensions

Wheelbase, in. (mm) ---
Wheel Tread, Min. to Max. in. (mm) ---
Turning Radius w/o Brakes, ft (m) ---
Nebraska Test Unballasted w/Duals, lb (kg) ---
Unballasted Weight, lb (kg) ---

John Deere 6125R Tractor Standard Tires

2WD ---
Front 10.0-16.0
Rear 18.4R34
MFWD ---
Front 12.4R24
Rear 16.9R30
4WD ---
Track widths ---

John Deere 6125R Tractor Miscellaneous

Country of Manufacture Mannheim, Germany
Ballasting Restrictions, lb (kg) Refer to operator's manual
*Notes Updated - 28 March 2015