Massey Ferguson 3645 Tractor Parts
3645 parts and accessories
The Massey Ferguson 3645, produced in the late 1980s and early 1990s, was a popular utility tractor known for its reliability and versatility. Powered by a Perkins diesel engine producing approximately 75-80 horsepower, the MF 3645 offered a PTO horsepower rating that made it suitable for a variety of implements. Farmers appreciated its robust build and adaptability to various farming tasks.
The Massey Ferguson 3645 was a key model in the MF lineup, manufactured from the late 1980s into the early 1990s. It featured a Perkins 4.236 four-cylinder diesel engine, delivering around 77 engine horsepower and 65 PTO horsepower, providing ample power for diverse agricultural applications. The engine's displacement was approximately 236 cubic inches (3.9 liters). The standard transmission was an 8-speed synchromesh gear transmission, offering a good range of speeds for fieldwork. Some models may have had optional transmission configurations for increased versatility. The PTO offered both 540 and 1000 RPM options, increasing the tractor's implement compatibility. Its hydraulic system delivered approximately 12 GPM of flow, capable of running implements efficiently. The 3-point hitch was typically a Category II, with a lift capacity around 4000 lbs. The MF 3645 was frequently used in row crop operations, hay production, livestock farms for feeding and material handling, and light tillage work. It distinguished itself through its balanced performance, offering a blend of power, simplicity, and reasonable operating costs, making it a favorite among farmers needing a reliable all-around tractor.
Specifications
| Engine | Perkins 4.236 77 HP 236 ci Diesel |
|---|---|
| PTO HP | 65 HP @ 540/1000 RPM |
| Transmission | 8-Speed Synchromesh |
| Hydraulics | 12 GPM, 2 remotes |
| 3-Point Hitch | Category II, 4000 lbs |
| Fuel Capacity | 25 gallons |
| Weight | 7000 lbs |
| Years Produced | 1987-1994 (approximate) |
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 or exceeds the manufacturer's specifications.
- Hydraulic System: Check hydraulic fluid levels regularly and inspect for leaks. Replace hydraulic filters according to the manufacturer's recommendations (typically every 500 hours) to prevent contamination.
- Fuel System: Use clean, high-quality diesel fuel and ensure the fuel filter is changed at the recommended interval (typically every 500 hours) to prevent fuel system issues.
- Seasonal Storage: Before storing the tractor for an extended period, fill the fuel tank to prevent condensation, add a fuel stabilizer, and disconnect the battery. Grease all lubrication points to prevent corrosion.
History & Background
The Massey Ferguson 3645 was introduced as part of the 3600 series, aimed at providing a robust and versatile tractor for mid-sized farming operations. While it didn't undergo radical redesigns during its production run, it represented a solid step in Massey Ferguson's commitment to providing reliable and capable tractors for the agricultural community. It remains a popular choice in the used tractor market due to its simplicity and dependability.
Frequently Asked Questions
What engine is in the Massey Ferguson 3645?
The Massey Ferguson 3645 is equipped with a Perkins 4.236 four-cylinder diesel engine, producing approximately 77 horsepower.
What is the PTO horsepower on a 3645?
The PTO horsepower rating for the Massey Ferguson 3645 is approximately 65 horsepower. It typically offers both 540 and 1000 RPM PTO speeds.
What oil filter fits the 3645?
Common oil filter cross-references for the Perkins 4.236 engine in the MF 3645 include Fram PH2951, Wix 51794, and Baldwin B1421. Always verify the correct filter using your tractor's serial number and an OEM parts catalog.
What are common parts needed for the 3645?
Common wear parts for the Massey Ferguson 3645 include engine oil filters, fuel filters, air filters, hydraulic filters, radiator hoses, fan belts, hydraulic seals, steering components (tie rod ends), and clutch components (clutch disc, pressure plate).

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