John Deere SE6620 Tractor Parts
SE6620 parts and accessories
The John Deere SE6620, manufactured between 2003 and 2007, was a popular choice for farmers needing a reliable utility tractor. Powered by a robust 99 HP John Deere diesel engine, the SE6620 delivered ample power for a variety of tasks. Its 86 PTO horsepower made it well-suited for operating implements like mowers and balers, contributing to its popularity in hay and livestock operations.
The John Deere SE6620 was introduced in 2003 as part of the 6020 Series, replacing the earlier 6000 series. Production continued until 2007. The tractor is powered by a John Deere 4.5L 4-cylinder diesel engine producing 99 engine horsepower. This engine features a robust design known for its reliability. It uses direct fuel injection. The SE6620 features a standard SyncroPlus transmission offering 12 forward and 4 reverse gears, providing a range of speeds suitable for various field operations. The independent PTO delivers 86 horsepower, offering both 540 and 1000 RPM options. The hydraulic system has a capacity of 16.9 GPM, powering two rear remotes. The three-point hitch is a Category II, capable of lifting approximately 5,732 lbs. The SE6620 was commonly used in row crop applications, hay production, livestock feeding operations, and light tillage work. Compared to other models in the 6020 series, the SE6620 offered a balance of power and versatility, making it a popular choice for medium-sized farms.
Specifications
| Engine | John Deere 4.5L 99 HP Diesel |
|---|---|
| PTO HP | 86 HP @ 540/1000 RPM |
| Transmission | SyncroPlus 12F/4R |
| Hydraulics | 16.9 GPM, 2 remotes |
| 3-Point Hitch | Category II, 5,732 lbs |
| Fuel Capacity | 37 gallons |
| Weight | 9,921 lbs |
| Years Produced | 2003-2007 |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours using the recommended John Deere oil and filter. Regularly check the oil level to prevent engine damage.
- Hydraulic System: Inspect hydraulic lines and fittings for leaks. Change the hydraulic fluid and filter every 1000 hours, or as recommended in the operator's manual, to maintain hydraulic performance and prevent contamination.
- Fuel System: Use clean, high-quality diesel fuel and regularly check the fuel filter for contamination. Drain any water from the fuel tank to prevent corrosion and injector issues.
- Seasonal Storage: Before storing the tractor for the off-season, fill the fuel tank to prevent condensation, add fuel stabilizer, and grease all lubrication points. Disconnect the battery and store it in a cool, dry place.
History & Background
The John Deere SE6620 was launched in 2003 as a part of the 6020 series, aiming to improve upon the previous 6000 series with enhanced features and performance. This tractor proved to be a popular utility tractor for medium-sized farming operations. The model remained largely unchanged during its production run, solidifying its reputation for reliability and versatility.
Frequently Asked Questions
What engine is in the John Deere SE6620?
The John Deere SE6620 is equipped with a John Deere 4.5L 4-cylinder diesel engine, producing 99 engine horsepower.
What is the PTO horsepower on a SE6620?
The PTO horsepower on the John Deere SE6620 is 86 HP, with both 540 and 1000 RPM options available.
What oil filter fits the SE6620?
The recommended oil filter for the John Deere SE6620 is a John Deere RE504836. Common cross-references include Baldwin B7349 and Wix 51793.
What are common parts needed for the SE6620?
Common wear parts for the John Deere SE6620 include: engine oil filters (RE504836), fuel filters (RE509672), hydraulic filters (RE62419), fan belts (R504899), hydraulic cylinder seal kits, and steering linkage components.

RE48786 - Pencil Injector
SKU: RE48786
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SKU: RE32011
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RE31617 - Valve Seal
SKU: RE31617
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RE31323 - Valve Rotator
SKU: RE31323
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SKU: R80135
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SKU: L76471
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SKU: L64250
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SKU: AL161338
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SKU: AL160539
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R56757 - Durometer 75 (2/Pack) .139" Thick O-Ring; 3.609" ID X 3.887" OD
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R504734 - Durometer 60 (1/Pack) .139" Thick O-Ring; 1.484" ID X 1.762" OD
SKU: R504734
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R459R - Durometer 70 (25/Pack) .103" Thick O-Ring; .549" ID X .755 OD
SKU: R459R
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R26871 - Snap Ring
SKU: R26871
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R112857 - Durometer 75 (1/Pack) .103" Thick O-Ring; 2.550" ID X 2.756" OD
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SKU: P47889
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SKU: 51M7103
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51M7100 - 90 Durometer (2/Pack) O-Ring; .984" ID X 1.142" OD X .079" Thick
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