John Deere 4620 Tractor Parts
4620 parts and accessories
The John Deere 4620 was a popular row-crop tractor manufactured from 1971 to 1977. Known for its reliable 136 horsepower diesel engine and efficient operation, the 4620 provided farmers with a dependable workhorse for a variety of tasks. Its robust PTO horsepower made it a favorite for powering implements in the field.
The John Deere 4620 was introduced in 1971 as a powerful and versatile tractor in the John Deere lineup. Production continued until 1977. The 4620 is powered by a John Deere 6.6L (404 cu in) 6-cylinder diesel engine, delivering approximately 136 horsepower. This engine provided ample power for various farming applications. The transmission options included a Syncro Range transmission with 8 forward and 2 reverse gears, or a Quad-Range transmission with 16 forward and 6 reverse gears. The PTO horsepower is rated at 115 HP, with both 540 RPM and 1000 RPM PTO options available, making it suitable for a wide range of implements. The hydraulic system had a capacity of around 26.5 GPM, providing sufficient flow for implements and attachments. It came equipped with a Category II 3-point hitch, with a lift capacity of approximately 6,700 lbs. The John Deere 4620 was commonly used for row crop work, haying operations, and livestock feeding. It distinguished itself from other models with its higher horsepower rating and heavier-duty construction, making it a step up from the smaller utility tractors.
Specifications
| Engine | John Deere 6.6L Diesel 136 HP |
|---|---|
| PTO HP | 115 HP @ 540/1000 RPM |
| Transmission | Syncro Range 8F/2R or Quad-Range 16F/6R |
| Hydraulics | 26.5 GPM, 2 remotes |
| 3-Point Hitch | Category II, 6700 lbs lift capacity |
| Fuel Capacity | 45 gallons |
| Weight | 12,400 lbs |
| Years Produced | 1971-1977 |
Maintenance Tips
- Change engine oil and filter every 250 hours using a high-quality diesel engine oil and the correct filter (verify filter number).
- Inspect and maintain the hydraulic system regularly, checking for leaks and changing hydraulic fluid and filters per the manufacturer's recommendations (typically every 500-1000 hours).
- Keep the fuel system clean by using fuel additives and draining water from the fuel tank regularly to prevent injector issues.
- Before seasonal storage, thoroughly clean the tractor, top off all fluids, and consider using a fuel stabilizer to prevent fuel degradation. Disconnect the battery to prevent drain.
History & Background
The John Deere 4620 was a key model introduced in the early 1970s, representing a move towards larger, more powerful tractors. It filled a significant gap in John Deere's lineup, offering a balance of power and versatility for medium-sized farms. The 4620 remains a sought-after classic tractor due to its reliability and proven performance.
Frequently Asked Questions
What engine is in the John Deere 4620?
The John Deere 4620 is equipped with a John Deere 6.6L (404 cubic inch) 6-cylinder diesel engine producing approximately 136 horsepower.
What is the PTO horsepower on a 4620?
The PTO horsepower of the John Deere 4620 is rated at 115 horsepower. It offers both 540 RPM and 1000 RPM PTO options.
What oil filter fits the 4620?
The recommended oil filter for the John Deere 4620 is typically a John Deere AR50041 or equivalent. Cross-references include Wix 51794, Fram PH3756, and Baldwin B2HPG.
What are common parts needed for the 4620?
Common wear parts for the John Deere 4620 include engine oil filters, fuel filters, hydraulic filters, fan belts, radiator hoses, hydraulic seals, tie rod ends, clutch discs, and brake components.

AR74814 - Main (Std) Bearing
SKU: AR74814
42 in stock

AR70987 - Turbocharger
SKU: AR70987
37 in stock

AR65507 - Liner Sealing Ring Kit
SKU: AR65507
298 in stock
AR63270 - Upper Gasket Set
SKU: AR63270
19 in stock

AR56075 - Flywheel w/ Ring Gear
SKU: AR56075
17 in stock

AR55394 - Oil Cooler
SKU: AR55394
71 in stock

AR53094 - Overhaul without Seals Gasket Set
SKU: AR53094
3 in stock

AR53091 - Injector
SKU: AR53091
198 in stock

AR51798 - Piston Liner Kit
SKU: AR51798
83 in stock

AR51741 - Piston Rings
SKU: AR51741
147 in stock

AR49771 - Fuel Lift Transfer Pump
SKU: AR49771
13 in stock

AR49247 - Main (.030") Bearing
SKU: AR49247
5 in stock

AR49246 - Main (.020") Bearing
SKU: AR49246
37 in stock

AR49245 - Main (.010") Bearing
SKU: AR49245
9 in stock

AR49243 - Main (Std) Bearing
SKU: AR49243
45 in stock
AR49025 - Front Crankshaft Seal
SKU: AR49025
163 in stock

AR46398 - Connecting Rod (.030") Bearing
SKU: AR46398
24 in stock

AR46397 - Connecting Rod (.020") Bearing
SKU: AR46397
292 in stock

AR46396 - Connecting Rod (.010") Bearing
SKU: AR46396
92 in stock

AR45723 - Connecting Rod (Std) Bearing
SKU: AR45723
354 in stock

AR28589 - Tachometer Cable Core
SKU: AR28589
48 in stock

AR100385 - Camshaft (Only)
SKU: AR100385
39 in stock

A4827R - Drain Plug (10 pk) Gasket
SKU: A4827R
156 in stock

TY6772 - Delco Alternator
SKU: TY6772
3 in stock
