Tractor TW25 6-Cylinder Agricultural Tractor Parts Catalog

Tractor Parts Identification Scope

• Covers 1983–1992 New Holland TW5, TW15, TW25, TW35, and 8530–8830 series agricultural tractors including variants with FWD or APL-365 heavy-duty axle configurations.
• Official OEM parts publication including part numbers and revision dates for model-specific components.
• Contains 47 detailed exploded-view diagrams illustrating complex assemblies like the front axle, steering motor, and transmission handbrake systems.
• Accessible from your device as soon as the order is placed.
• No DRM restrictions on the print function.
• This 1983–1990 parts catalog serves as the primary reference for identifying components across multiple configurations, documenting assembly variations like 6-lug to 8-lug front wheel conversions.

Assembly Structure and Documentation

This catalog provides a comprehensive parts list for the New Holland TW-series 6-cylinder agricultural tractors. It segments components by system, ranging from front end ballast and wheel assemblies to the transmission handbrake lever and steering column architecture. The documentation defines specific part numbers for major heavy-duty front axle variants, including the APL-345, APL-350, and APL-365 systems.

Each system section presents an exploded-view illustration followed by an itemized list identifying the reference number, part number, quantity, and specific fitment criteria. The text also clarifies usage for L/Cab and W/Cab models, as well as distinct regional requirements for NH-E and NHNA specifications.

Component Specification Previews

Understanding parts documentation for vintage New Holland machinery is essential for identifying the correct replacement hardware. The catalog documents numerous hardware specifications, such as the 5/8"-18 x 2-1/2" bolts used for front wheel mounting on certain configurations. Front end weights are specified in 40 kg or 100 lb units depending on the bracket type and model year. Steering assembly data includes O-ring dimension specs like.468" ID x.078" thickness, and the publication lists multiple shim thicknesses ranging from 0.01425 to 0.028 inches for specific component alignment. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This 1102-page factory parts catalog provides comprehensive assembly diagrams, part numbers, and configuration data for the 1983–1992 New Holland TW5, TW15, TW25, TW35, and 8530–8830 series tractors.