New Holland TN75S Supersteer Tractor Parts List (1998+) Parts Catalog (P/N 603144a1200)

• Covers the 1998 and newer New Holland TN75S Supersteer tractor with diesel engine variants, including Hi-Lo, Power Shuttle, and Terraglide setups.
• Original OEM publication (catalog number 603144a1200, first edition September 1998) featuring 2,874 pages of exploded-view diagrams.

Assembly and System Breakdown

When sourcing replacement components or rebuilding complex systems, guesswork is not an option. This first edition serves as the definitive parts reference for the TN75S build, documenting all factory-installed options and mid-mount hydraulic attachments. The catalog provides a clear look at assemblies ranging from the diesel engine block and crankshaft down to the transmission gear sets and steering controls. Each section delivers detailed exploded diagrams with associated part numbers, ensuring accurate hardware identification across all five documented model variations.

Technical Component Overview

Engine coverage drills down into piston and connecting rod specifications, cooling system lines, and injection pump variations based on engine numbers. The hydraulic system schematics are highly detailed, featuring the 16.9 GPM (64L) electronic lift pump, remote control valves, and lift cylinders. Electrical sections accurately map out cable harnesses, relay locations, and instrument cluster connections.

To ensure safe operation and proper fitment, always verify your specific tractor's serial number against these diagrams before ordering parts or beginning heavy maintenance. Crucial reference data, such as the front axle assembly 1.40.1 configurations for Supersteer and Terraglide versions, ensures you pull the exact hardware needed for your specific machine.