John Deere 6603 Tractor Parts

6603 parts and accessories

The John Deere 6603, manufactured from 2003 to 2006, was a popular utility tractor known for its versatility. Powered by a reliable 76 HP diesel engine, it provided sufficient power for a variety of tasks. With a PTO horsepower of 64, the 6603 became a staple on many farms due to its balance of power, reliability, and ease of operation.

The John Deere 6603 was introduced in 2003 as part of the John Deere utility tractor lineup and was produced until 2006. This model offered a blend of power and functionality suitable for a range of agricultural tasks. At its heart is a John Deere 4.5L (276 ci) PowerTech diesel engine producing approximately 76 horsepower. This engine offers excellent fuel efficiency and reliability. The transmission is a SyncReverser transmission with 9 forward and 9 reverse gears providing flexibility in various working conditions. The PTO horsepower is rated at 64 HP, with a 540 RPM PTO. Hydraulics deliver around 18 GPM to power implements, controlled via two rear remotes. It features a Category II 3-point hitch with a lift capacity of around 4,400 lbs. The 6603 found common applications in row crop operations, hay production, livestock management, and general tillage. Unlike some of the larger row-crop tractors, the 6603 was valued for its agility and ease of use in smaller fields and around farm buildings, making it a practical and efficient workhorse.

Specifications

Engine	John Deere 4.5L PowerTech 76 HP Diesel
PTO HP	64 HP @ 540 RPM
Transmission	SyncReverser 9F/9R
Hydraulics	18 GPM, 2 remotes
3-Point Hitch	Category II, 4400 lbs lift capacity
Fuel Capacity	29 gallons
Weight	7,546 lbs
Years Produced	2003-2006

Maintenance Tips

Engine Oil & Filter: Change the engine oil and filter every 250 hours using a high-quality diesel engine oil that meets John Deere specifications. Always replace the oil filter with a genuine John Deere filter or a reputable aftermarket equivalent.
Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filter every 500 hours. Use only John Deere approved hydraulic fluid to prevent damage to the hydraulic system.
Fuel System: Use clean, high-quality diesel fuel and check the fuel filter regularly. Drain any water or sediment from the fuel tank periodically to prevent fuel system issues. Consider using a fuel additive during winter to prevent gelling.
Seasonal Storage: Before storing the tractor for an extended period, stabilize the fuel, change the engine oil and filter, and disconnect the battery. Store the tractor in a dry location and cover it to protect it from the elements.

History & Background

The John Deere 6603 was introduced in 2003 as a part of John Deere's updated utility tractor lineup. It was designed to offer a modern, reliable, and versatile tractor for small to medium-sized farms. This model helped solidify John Deere's position as a leading provider of agricultural machinery.

Frequently Asked Questions

What engine is in the John Deere 6603?

The John Deere 6603 is equipped with a John Deere 4.5L PowerTech diesel engine, producing approximately 76 horsepower.

What is the PTO horsepower on a 6603?

The John Deere 6603 has a PTO horsepower rating of 64 HP at 540 RPM.

What oil filter fits the 6603?

The recommended oil filter for the John Deere 6603 is typically a John Deere filter part number RE504836. Common cross-references include Baldwin B1441, Wix 51791, and Fram PH3593A. Always verify compatibility with your specific tractor before installation.

What are common parts needed for the 6603?

Common wear parts for the John Deere 6603 include engine oil filters, fuel filters, air filters, hydraulic filters, belts, hydraulic cylinder seal kits, steering components (tie rod ends), and clutch components (pressure plate, disc, release bearing).

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