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).

AL32981 - MFWD Input Pinion Oil Seal
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40M4624 - Differential Retaining Ring
SKU: 40M4624
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40M1873 - Snap; MFWD Ring
SKU: 40M1873
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RE51774 - Water Temperature Sensor
SKU: RE51774
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RE48583 - 180° Thermostat
SKU: RE48583
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RE18676 - Water Pump
SKU: RE18676
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SKU: RE11348
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L41330 - Fan Belt
SKU: L41330
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L34922 - Lower Radiator Hose
SKU: L34922
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L32456 - Upper Radiator Hose
SKU: L32456
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AR92641 - Water Pump
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AR48675 - 180° Thermostat
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R234266 - Clutch Control Valve Cover Gasket
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AL69935 - 10 Spline Spring Loaded Organic Trans Disc: 12.875"
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AL68485 - w/ Release Plate w/ .85" Flywheel Step Cast Iron Pressure Plate: 12.875"
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AL64948 - incls p. plate & trans disc for flywheel w/ .85" step Diaphram SET: 13"
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