John Deere 3640 Tractor Parts
3640 parts and accessories
The John Deere 3640, manufactured from 1982 to 1987, was a popular choice for farmers seeking a reliable and versatile tractor. Powered by a robust 82 HP diesel engine, this tractor offered a PTO horsepower of around 72 HP, making it suitable for a variety of agricultural tasks. Its comfortable cab and dependable performance contributed to its widespread adoption on farms.
The John Deere 3640 was introduced in 1982 as part of John Deere's 40 series, known for their improved operator comfort and reliability. Production continued until 1987. The heart of the 3640 is a John Deere 4.239L (239 ci) 4-cylinder diesel engine, producing approximately 82 engine horsepower. The transmission options included a standard Syncro Range transmission with 8 forward and 4 reverse gears or an optional PowrQuad transmission. The rear PTO delivers around 72 horsepower at 540 RPM. The hydraulic system has a capacity of approximately 15.9 GPM and offered one or two remote valves. The 3-point hitch is a Category II, providing ample lift capacity for various implements. Common applications included row crop work, hay production, livestock operations, and general tillage. What set the 3640 apart from some of its smaller siblings in the 40 series was its heavier build and greater hydraulic capacity, making it more capable for demanding tasks.
Specifications
| Engine | John Deere 4.239L 82 HP Diesel |
|---|---|
| PTO HP | 72 HP @ 540 RPM |
| Transmission | Syncro Range (8F/4R) or PowrQuad |
| Hydraulics | 15.9 GPM, 1-2 remotes |
| 3-Point Hitch | Category II, 5,400 lbs Lift Capacity |
| Fuel Capacity | 27.7 gallons |
| Weight | 8,795 lbs |
| Years Produced | 1982-1987 |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours using the recommended John Deere oil specification for optimal engine life.
- Hydraulic System: Inspect hydraulic fluid levels and filters regularly, typically every 500 hours, to prevent contamination and ensure smooth operation. Replace filters as needed.
- Fuel System: Use clean, high-quality diesel fuel and change the fuel filter every 500 hours. Drain water from the fuel/water separator frequently to prevent fuel system issues.
- Seasonal Storage: Before storing the tractor for an extended period, fill the fuel tank to prevent condensation, add fuel stabilizer, and disconnect the battery to prevent discharge.
History & Background
The John Deere 3640 was released in 1982 as part of the "40 Series," which was a redesign of previous models. It offered improvements in operator comfort, hydraulic power, and overall reliability. The 3640 proved to be a workhorse tractor for many farms, contributing significantly to increased agricultural productivity during its production years.
Frequently Asked Questions
What engine is in the John Deere 3640?
The John Deere 3640 is equipped with a John Deere 4.239L (239 cubic inch) 4-cylinder diesel engine, producing approximately 82 horsepower.
What is the PTO horsepower on a 3640?
The John Deere 3640 has a PTO horsepower of approximately 72 HP and operates at 540 RPM.
What oil filter fits the 3640?
The John Deere 3640 typically uses a John Deere oil filter part number AR51774. Cross-references include Wix 51794 and Fram PH3756.
What are common parts needed for the 3640?
Common parts needed for the John Deere 3640 include engine oil filters, fuel filters, hydraulic filters, belts (fan belt, alternator belt), hydraulic seals for cylinders and pumps, steering components (tie rod ends, power steering cylinders), and clutch components (clutch disc, pressure plate, throwout bearing).

R80136 - Oil Filler Cap
SKU: R80136
152 in stock

R80033 - Connecting Rod (2.750" Long) Capscrew
SKU: R80033
131 in stock

R79629 - Intake (.015") Valve
SKU: R79629
16 in stock

R79628 - Intake (.003") Valve
SKU: R79628
15 in stock

R79626 - EXHAUST (.015") VALVE
SKU: R79626
10 in stock

R79625 - Exhaust (.003") Valve
SKU: R79625
228 in stock

R79624 - Exhaust (Std) Valve
SKU: R79624
109 in stock

R79623 - Intake (Std) Valve
SKU: R79623
87 in stock

R79606 - Tee Fitting
SKU: R79606
259 in stock

R79605 - Grommet
SKU: R79605
5681 in stock

R79604 - Injector NUT
SKU: R79604
200 in stock

R75728 - Rocker Cover Gasket
SKU: R75728
18 in stock

R74194 - Connecting Rod (2.500" long) Capscrew
SKU: R74194
638 in stock

R55647 - Connecting Rod Bushing
SKU: R55647
501 in stock

R51937 - Injector Nozzle Nut
SKU: R51937
614 in stock

R51936 - Injector Lines Grommet
SKU: R51936
12010 in stock

R51734 - Exhaust Valve (Std) Insert
SKU: R51734
192 in stock

R51731 - Piston Pin
SKU: R51731
41 in stock

R51726 - Cylinder Liner
SKU: R51726
10 in stock

R26125 - Valve Spring
SKU: R26125
262 in stock

R125066 - Injection Pump Gear Cover Gasket
SKU: R125066
22 in stock

R114282 - Flywheel Ring Gear
SKU: R114282
Out of stock

MB180-20 - set of 3) Main (.020" Bearing Set
SKU: MB180-20
9 in stock

MB180-10 - set of 3) Main (.010" Bearing Set
SKU: MB180-10
3 in stock
