(828) 649-7190
Same Day Shipping Before 2pm EST

John Deere 4840 Tractor Parts

4840 parts and accessories

The John Deere 4840, manufactured from 1978 to 1982, was a popular row-crop tractor known for its power and reliability. Powered by a 176 HP diesel engine and boasting a robust PTO, the 4840 became a mainstay on farms across North America. Its comfortable cab and user-friendly design made it a favorite among farmers of the era.

The John Deere 4840 was introduced in 1978 as part of the 'Iron Horse' generation, replacing earlier models and offering increased power and improved features. It was produced until 1982. The heart of the 4840 is the John Deere 619 cubic inch (10.1L) inline 6-cylinder diesel engine, producing approximately 176 horsepower. This engine provided ample power for a variety of tasks. The tractor featured a Quad-Range transmission, offering 16 forward and 6 reverse speeds, providing operators with a wide range of gears for optimal performance in various field conditions. The 4840 delivered around 145 PTO horsepower at both 540 and 1000 RPM, allowing for versatile implement compatibility. Its hydraulic system boasted a flow rate of approximately 30 GPM, powering multiple remote hydraulic circuits. The 3-point hitch was a Category III, providing ample lift capacity for heavy implements. Commonly used in row crop farming, hay production, and general tillage operations, the 4840 distinguished itself from smaller models with its increased horsepower and heavier build, while offering a more economical option compared to the larger frame John Deere tractors of the time.

Specifications

EngineJohn Deere 619 ci (10.1L) 176 HP Diesel
PTO HP145 HP @ 540/1000 RPM
TransmissionQuad-Range, 16 Forward / 6 Reverse
Hydraulics30 GPM, 2-3 remotes
3-Point HitchCategory III, 6,800 lbs lift capacity
Fuel Capacity75 gallons
Weight16,740 lbs
Years Produced1978-1982

Maintenance Tips

  • Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation, using a high-quality diesel engine oil that meets John Deere's specifications.
  • Hydraulic System: Regularly check hydraulic fluid levels and inspect for leaks. Change the hydraulic filter every 500 hours or annually, and use the recommended John Deere Hy-Gard fluid.
  • Fuel System: Use clean, high-quality diesel fuel and replace the fuel filter every 250 hours. Drain any water from the fuel/water separator regularly to prevent contamination and injector issues.
  • Seasonal Storage: Before storing the tractor for the off-season, fill the fuel tank to prevent condensation, change the engine oil and filter, and grease all lubrication points. Consider adding fuel stabilizer.

History & Background

The John Deere 4840 was introduced in 1978 as part of the new 'Iron Horse' generation of tractors from John Deere. It aimed to provide farmers with a reliable and powerful machine for demanding agricultural tasks. While there weren't significant redesigns during its production run, the 4840 solidified its place as a popular and dependable workhorse during a pivotal era in agricultural mechanization.

Frequently Asked Questions

What engine is in the John Deere 4840?

The John Deere 4840 is powered by a John Deere 619 cubic inch (10.1L) inline 6-cylinder diesel engine producing approximately 176 horsepower.

What is the PTO horsepower on a 4840?

The John Deere 4840 delivers approximately 145 PTO horsepower and offers both 540 and 1000 RPM PTO speed options.

What oil filter fits the 4840?

The John Deere 4840 typically uses a John Deere oil filter part number AR51727. Common cross-references include Wix 51794 or Napa 1794.

What are common parts needed for the 4840?

Common parts needed for the John Deere 4840 include engine oil filters, fuel filters, hydraulic filters, fan belts, radiator hoses, hydraulic cylinder seal kits, tie rod ends, steering components, and clutch discs/pressure plates.

Showing 169-192 of 541 products
R50541 - Cab To Hood Seal

R50541 - Cab To Hood Seal

SKU: R50541

$15.97

10 in stock

R238022 - LH Cab Door Molding

R238022 - LH Cab Door Molding

SKU: R238022

$10.59

27 in stock

L79776 - Rear View Mirror Glass
Out of Stock

L79776 - Rear View Mirror Glass

SKU: L79776

$27.79

Out of stock

L40415 - RH Window Lower Front Weatherstrip

L40415 - RH Window Lower Front Weatherstrip

SKU: L40415

$91.19

39 in stock

L40414 - Upper Door Weatherstrip

L40414 - Upper Door Weatherstrip

SKU: L40414

$99.19

32 in stock

L40413 - Lower Window Cab Door Weatherstrip

L40413 - Lower Window Cab Door Weatherstrip

SKU: L40413

$107.51

27 in stock

L40412 - RH Window Upper Front Weatherstrip

L40412 - RH Window Upper Front Weatherstrip

SKU: L40412

$104.10

16 in stock

CWL500 - Brindle Brown 1 Piece Cover; Cowl

CWL500 - Brindle Brown 1 Piece Cover; Cowl

SKU: CWL500

$228.51

13 in stock

CPK400 - Black Corner Post Upholstery Kit

CPK400 - Black Corner Post Upholstery Kit

SKU: CPK400

$119.27

42 in stock

CKT305L - Black Cab Upholstery Kit

CKT305L - Black Cab Upholstery Kit

SKU: CKT305L

$213.51

8 in stock

CKT300E - Black Cab Upholstery Kit

CKT300E - Black Cab Upholstery Kit

SKU: CKT300E

$176.44

40 in stock

CHL215 - Black Headliner Kit

CHL215 - Black Headliner Kit

SKU: CHL215

$332.29

6 in stock

CFM475 - Floor Mat

CFM475 - Floor Mat

SKU: CFM475

$129.11

9 in stock

AR91895 - Handle
Out of Stock

AR91895 - Handle

SKU: AR91895

$122.63

Out of stock

AR89830 - Side (RH/LH) Weatherstrip

AR89830 - Side (RH/LH) Weatherstrip

SKU: AR89830

$43.94

75 in stock

AR89137 - Rear View Mirror

AR89137 - Rear View Mirror

SKU: AR89137

$41.57

300 in stock

AR87997 - Rear - Sliding Glass

AR87997 - Rear - Sliding Glass

SKU: AR87997

$164.11

31 in stock

AR85560 - Lower Door Weatherstrip

AR85560 - Lower Door Weatherstrip

SKU: AR85560

$24.49

80 in stock

AR85559 - Upper with Tails LH Cab Door Weatherstrip

AR85559 - Upper with Tails LH Cab Door Weatherstrip

SKU: AR85559

$36.41

59 in stock

AR74143 - Cab Roof

AR74143 - Cab Roof

SKU: AR74143

$507.39

139 in stock

AR100056 - Control Valve

AR100056 - Control Valve

SKU: AR100056

$52.54

42 in stock

AL78021 - LH/RH Outer Rear View Mirror Head

AL78021 - LH/RH Outer Rear View Mirror Head

SKU: AL78021

$80.80

1156 in stock

AH118028 - Black Bezel W/ Air Louvers

AH118028 - Black Bezel W/ Air Louvers

SKU: AH118028

$265.31

32 in stock

80263 - Ram Type; RAM 2.43" X 1.31" Diamond Shape Base W/ 1" Ball Mount

80263 - Ram Type; RAM 2.43" X 1.31" Diamond Shape Base W/ 1" Ball Mount

SKU: 80263

$25.91

23 in stock