John Deere 3641 Tractor Parts
3641 parts and accessories
The John Deere 3641 was a popular utility tractor produced in the early 1980s. Known for its reliability and versatility, the 3641 was powered by a diesel engine delivering around 41 horsepower. Its robust PTO horsepower made it ideal for a variety of farm tasks, establishing itself as a dependable workhorse for farmers.
The John Deere 3641 tractor was manufactured between 1980 and 1983, filling a need for a mid-size utility tractor capable of handling various farm chores. The engine was a Yanmar 3T90J diesel, a 1.6L (97.4 cu in) three-cylinder engine producing approximately 41 horsepower. The transmission was a gear-type with 8 forward and 2 reverse speeds, providing a good range for different applications. The PTO delivered around 35 horsepower at 540 RPM, suitable for operating implements like mowers, tillers, and balers. The hydraulic system had a capacity of approximately 7.9 gallons per minute, powering two remote outlets. It features a category I 3-point hitch, which can lift approximately 2,100 lbs. Farmers commonly used the 3641 for hay production, livestock operations, light tillage, and general utility work. Compared to smaller models, the 3641 offered more power and hydraulic capacity, while being more compact and fuel-efficient than larger row-crop tractors.
Specifications
| Engine | Yanmar 3T90J 41 HP Diesel |
|---|---|
| PTO HP | 35 HP @ 540 RPM |
| Transmission | Gear 8F/2R |
| Hydraulics | 7.9 GPM, 2 remotes |
| 3-Point Hitch | Category I, 2100 lbs |
| Fuel Capacity | 12.7 gallons |
| Weight | 3,307 lbs |
| Years Produced | 1980-1983 |
Maintenance Tips
- Engine Oil & Filter: Change engine oil and filter every 250 hours using a high-quality diesel-rated oil and the correct filter (check your manual for specs).
- Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filter and fluid every 500 hours or annually to prevent contamination and ensure smooth operation.
- Fuel System: Use a fuel stabilizer when storing the tractor for extended periods to prevent fuel degradation and clogging. Also, regularly check and clean the fuel filter.
History & Background
Introduced in 1980, the John Deere 3641 aimed to provide a reliable and versatile utility tractor option. This model did not undergo major redesigns during its production run, maintaining a consistent design. Its popularity helped solidify John Deere's presence in the mid-size tractor market.
Frequently Asked Questions
What engine is in the John Deere 3641?
The John Deere 3641 is powered by a Yanmar 3T90J 3-cylinder diesel engine producing 41 horsepower.
What is the PTO horsepower on a 3641?
The PTO horsepower of the John Deere 3641 is approximately 35 horsepower at 540 RPM.
What oil filter fits the 3641?
The oil filter for the John Deere 3641 is typically a John Deere M806419 or a common cross-reference such as a Wix 51365 or Fram PH3614. Always verify compatibility with your specific tractor and engine.
What are common parts needed for the 3641?
Common parts needed for the John Deere 3641 include engine oil filters, fuel filters, air filters, hydraulic filters, belts, hydraulic seals, steering components (tie rod ends), clutch disc, and pressure plate.

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