John Deere 5603 Tractor Parts

5603 parts and accessories

The John Deere 5603, manufactured from 2003 to 2007, is a utility tractor known for its reliability and versatility in various farming applications. Powered by a John Deere PowerTech 4.5L diesel engine delivering approximately 74 horsepower, and featuring a PTO horsepower around 63, this model quickly became a favorite among farmers needing a dependable workhorse for everyday tasks. Its robust design and ease of use contributed to its popularity.

The John Deere 5603 was introduced in 2003 as part of the '03 Series' of utility tractors, designed to offer a balance of power, simplicity, and affordability. Production continued until 2007. This tractor is equipped with a John Deere PowerTech 4045D 4.5L 4-cylinder diesel engine, producing around 74 engine horsepower. The engine features direct injection for improved fuel efficiency. The standard transmission is a synchronized 9-speed gear transmission, offering a good range of speeds for different tasks. A 12-speed option was also available. The 540 RPM PTO delivers approximately 63 horsepower for powering implements. Hydraulics offer around 15.9 GPM of flow, with typically 2 rear remotes. The 3-point hitch is a Category II, with a lift capacity of approximately 4,162 lbs. Common farming applications include hay baling, rotary cutting, light tillage, livestock feeding, and general farm maintenance. The 5603 distinguishes itself with its straightforward mechanical design, making it easy to maintain and repair compared to more complex electronic systems found on some newer models, thus appealing to farmers who valued simplicity and durability.

Specifications

Engine	John Deere PowerTech 74 HP Diesel
PTO HP	63 HP @ 540 RPM
Transmission	Synchro 9-Speed
Hydraulics	15.9 GPM, 2 remotes
3-Point Hitch	Category II, 4,162 lbs
Fuel Capacity	26.4 gallons
Weight	7,275 lbs
Years Produced	2003-2007

Maintenance Tips

Change engine oil and filter every 250 hours or annually, using a high-quality oil meeting John Deere specifications.
Inspect and maintain hydraulic fluid levels and filters regularly, typically every 500 hours, to prevent damage to hydraulic components.
Use clean, high-quality diesel fuel and replace fuel filters according to the manufacturer's recommendations (usually every 500 hours) to ensure optimal engine performance.
Before seasonal storage, thoroughly clean the tractor, lubricate all grease fittings, and protect the fuel system with a fuel stabilizer to prevent fuel degradation and injector clogging.

History & Background

The John Deere 5603 was introduced in 2003 as part of the '03 Series', replacing some of the previous models with a refined design and updated features. While no major redesigns occurred during its production run (2003-2007), it represented a solid, reliable tractor in John Deere's utility tractor lineup, contributing to their reputation for building durable and dependable farm equipment.

Frequently Asked Questions

What engine is in the John Deere 5603?

The John Deere 5603 features a John Deere PowerTech 4045D 4.5L 4-cylinder diesel engine, producing approximately 74 horsepower.

What is the PTO horsepower on a 5603?

The PTO horsepower on the John Deere 5603 is approximately 63 horsepower, delivered at 540 RPM.

What oil filter fits the 5603?

The common oil filter for the John Deere 5603 is a John Deere filter part number RE504836. Cross-references include Baldwin B7377, Wix 57040, and Fleetguard LF3970.

What are common parts needed for the 5603?

Common parts needed for the John Deere 5603 include engine oil filters, fuel filters, air filters, hydraulic filters, belts (alternator, fan), hydraulic cylinder seal kits, steering cylinder seal kits, and clutch components such as the clutch disc and release bearing.

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