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John Deere 6120 Tractor Parts

6120 parts and accessories

The John Deere 6120 tractor, manufactured from 2003 to 2007, proved to be a reliable workhorse on farms. Powered by a 4.5L PowerTech diesel engine delivering around 80 horsepower, and boasting a PTO horsepower of approximately 66, this model became popular for its versatility in various agricultural tasks. Farmers appreciated its balance of power, efficiency, and user-friendly design.

The John Deere 6120 was introduced in 2003 as part of the John Deere 6000 series, replacing earlier models and offering updated features and performance. Production continued through 2007. This tractor features a 4.5L John Deere PowerTech 4045T diesel engine, producing approximately 80 horsepower. The engine's displacement is 276 cubic inches (4.5 liters). Transmission options included a SyncroPlus transmission with 12 forward and 4 reverse speeds, or a PowrQuad Plus transmission offering 16 forward and 16 reverse speeds with power shift capabilities. The PTO horsepower is around 66 hp, with a standard 540 RPM PTO, and an optional 540/1000 RPM PTO. Hydraulic capacity is approximately 15.9 GPM (60.2 L/min) with typically two rear remotes. It features a Category II 3-point hitch with a lift capacity of around 5,357 lbs. The John Deere 6120 was commonly used for various farming applications, including row crop work, hay production, livestock operations, and light tillage. What distinguishes it from other models in the lineup is its compact size, balanced power, and fuel efficiency, making it a versatile choice for smaller to medium-sized farms.

Specifications

EngineJohn Deere 4045T 80 HP Diesel
PTO HP66 HP @ 540/1000 RPM
TransmissionSyncroPlus 12x4 or PowrQuad Plus 16x16
Hydraulics15.9 GPM, 2 remotes
3-Point HitchCategory II, 5357 lbs
Fuel Capacity34.3 gallons
Weight8,600 lbs
Years Produced2003-2007

Maintenance Tips

  • Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation. Use John Deere Plus-50 II oil or equivalent and a genuine John Deere oil filter for optimal engine protection.
  • Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filters every 500 hours. Use only John Deere Hy-Gard fluid to prevent damage to hydraulic components. Check for leaks around hydraulic cylinders and hoses.
  • Fuel System: Use clean, high-quality diesel fuel and replace the fuel filter every 500 hours to prevent fuel system issues. Drain water from the fuel/water separator regularly, especially in humid conditions. Consider using a fuel additive during cold weather.

History & Background

The John Deere 6120 was launched in 2003 as a part of the updated 6000 series, designed to provide a modern and efficient tractor for a range of agricultural tasks. There were no major redesigns during its production run, but it represented an advancement in terms of operator comfort and fuel efficiency compared to its predecessors. It solidified John Deere's reputation for producing reliable and versatile tractors.

Frequently Asked Questions

What engine is in the John Deere 6120?

The John Deere 6120 is equipped with a 4.5L John Deere PowerTech 4045T diesel engine, producing approximately 80 horsepower.

What is the PTO horsepower on a 6120?

The PTO horsepower rating on the John Deere 6120 is approximately 66 HP. It offered a standard 540 RPM PTO and an optional 540/1000 RPM PTO.

What oil filter fits the 6120?

The recommended oil filter for the John Deere 6120 is a John Deere filter part number RE504836 or an equivalent cross-reference like a Wix 51348 or a Baldwin B7170.

What are common parts needed for the 6120?

Commonly needed parts for the John Deere 6120 include engine oil filters, fuel filters, air filters, hydraulic filters, fan belts, hydraulic cylinder seal kits, steering cylinder seals, and clutch components (if applicable for mechanical transmissions).

Showing 97-120 of 733 products
T59014 - Durometer 90 (5/Pack) .139" Thick O-Ring; .984" ID X 1.262" OD

T59014 - Durometer 90 (5/Pack) .139" Thick O-Ring; .984" ID X 1.262" OD

SKU: T59014

$2.36

2750 in stock

T42302 - Durometer 70 (1/Pack) .103" Thick O-Ring;  3.987" ID X 4.193" OD

T42302 - Durometer 70 (1/Pack) .103" Thick O-Ring; 3.987" ID X 4.193" OD

SKU: T42302

$2.39

385 in stock

R77551 - Durometer 75 (12/Pack) .070" Thick O-Ring; .208" ID X .348" OD

R77551 - Durometer 75 (12/Pack) .070" Thick O-Ring; .208" ID X .348" OD

SKU: R77551

$0.44

1908 in stock

R76617 - Durometer 75 (5/Pack) .070" Thick O-Ring; .489" ID X .629" OD

R76617 - Durometer 75 (5/Pack) .070" Thick O-Ring; .489" ID X .629" OD

SKU: R76617

$0.77

280 in stock

R72653 - Snap; 50/Pack Ring

R72653 - Snap; 50/Pack Ring

SKU: R72653

$0.69

1800 in stock

R72328 - Durometer 75 (5/Pack) .103" Thick O-Ring; .737" ID X .943" OD

R72328 - Durometer 75 (5/Pack) .103" Thick O-Ring; .737" ID X .943" OD

SKU: R72328

$0.71

695 in stock

R62070 - Durometer 70 (5/Pack) .070" Thick O-Ring; .989" ID X 1.129" OD

R62070 - Durometer 70 (5/Pack) .070" Thick O-Ring; .989" ID X 1.129" OD

SKU: R62070

$1.03

185 in stock

R61467 - Durometer 75 (2/Pack) .103" Thick O-Ring; 2.737" ID X 2.943" OD

R61467 - Durometer 75 (2/Pack) .103" Thick O-Ring; 2.737" ID X 2.943" OD

SKU: R61467

$2.91

766 in stock

R61105 - Durometer 75 (1/Pack) .139" Thick O-Ring; 1.484" ID X 1.762" OD

R61105 - Durometer 75 (1/Pack) .139" Thick O-Ring; 1.484" ID X 1.762" OD

SKU: R61105

$2.27

1270 in stock

R56757 - Durometer 75 (2/Pack) .139" Thick O-Ring; 3.609" ID X 3.887" OD

R56757 - Durometer 75 (2/Pack) .139" Thick O-Ring; 3.609" ID X 3.887" OD

SKU: R56757

$5.17

256 in stock

R56462 - Durometer 75 (5/Pack) .139" Thick O-Ring; .734" ID X 1.012" OD

R56462 - Durometer 75 (5/Pack) .139" Thick O-Ring; .734" ID X 1.012" OD

SKU: R56462

$1.06

270 in stock

R530854 - Durometer 75 (1/Pack) .070" Thick O-Ring; .739" ID X  .879" OD

R530854 - Durometer 75 (1/Pack) .070" Thick O-Ring; .739" ID X .879" OD

SKU: R530854

$1.27

374 in stock

R504734 - Durometer 60 (1/Pack) .139" Thick O-Ring; 1.484" ID X 1.762" OD

R504734 - Durometer 60 (1/Pack) .139" Thick O-Ring; 1.484" ID X 1.762" OD

SKU: R504734

$2.31

112 in stock

R459R - Durometer 70 (25/Pack) .103" Thick O-Ring; .549" ID X .755 OD

R459R - Durometer 70 (25/Pack) .103" Thick O-Ring; .549" ID X .755 OD

SKU: R459R

$0.83

625 in stock

R27928 - Durometer 75 (25/Pack) .070" Thick O-Ring; .926" ID X 1.066" OD

R27928 - Durometer 75 (25/Pack) .070" Thick O-Ring; .926" ID X 1.066" OD

SKU: R27928

$0.97

450 in stock

R27564 - Durometer 70 (10/Pack) .070" Thick O-Ring; .739" ID X .879" OD

R27564 - Durometer 70 (10/Pack) .070" Thick O-Ring; .739" ID X .879" OD

SKU: R27564

$0.61

250 in stock

R26871 - Snap Ring

R26871 - Snap Ring

SKU: R26871

$1.33

801 in stock

R1225R - Durometer 75 (5/ Pack) O-Ring; 1.171" ID X 1.449" OD X .139" Thick

R1225R - Durometer 75 (5/ Pack) O-Ring; 1.171" ID X 1.449" OD X .139" Thick

SKU: R1225R

$2.50

565 in stock

R112857 - Durometer 75 (1/Pack) .103" Thick O-Ring; 2.550" ID X  2.756" OD

R112857 - Durometer 75 (1/Pack) .103" Thick O-Ring; 2.550" ID X 2.756" OD

SKU: R112857

$3.53

451 in stock

R106663 - Durometer 75 (5/Pack) .070" Thick O-Ring; 1.176" ID X 1.316" OD

R106663 - Durometer 75 (5/Pack) .070" Thick O-Ring; 1.176" ID X 1.316" OD

SKU: R106663

$1.20

335 in stock

P50883 - Durometer 70 (10/Pack) .070" Thick O-Ring; .676" ID X .816" OD

P50883 - Durometer 70 (10/Pack) .070" Thick O-Ring; .676" ID X .816" OD

SKU: P50883

$0.60

100 in stock

P47889 - Durometer 70 (2/Pack) .103" Thick O-Ring; .799" ID X 1.005" OD

P47889 - Durometer 70 (2/Pack) .103" Thick O-Ring; .799" ID X 1.005" OD

SKU: P47889

$1.09

862 in stock

F3353R - Durometer 75 (10/Pack) O-Ring; .362" ID X .568" OD X .103" Thick

F3353R - Durometer 75 (10/Pack) O-Ring; .362" ID X .568" OD X .103" Thick

SKU: F3353R

$0.97

720 in stock

B3690R - Durometer 75 (5/Pack) O-Ring; 1.859" ID X 2.137" OD X .139" Thick

B3690R - Durometer 75 (5/Pack) O-Ring; 1.859" ID X 2.137" OD X .139" Thick

SKU: B3690R

$3.04

425 in stock