1965–1975 Ford 3400 3-Cylinder Utility Tractor Parts Manual (P/N E0NN3503AA)

Covers the Ford 3400 3-cylinder utility tractor (1965–1975), breaking down chassis, drivetrain, engine, and hydraulic assemblies. This illustrated parts catalog supports component identification and repair planning; shared Ford-series listings carry their own model and equipment restrictions.

Text search and drawing detail: Parts tables and figure headings are searchable, but drawing callouts are image-based. Bookmarks open the figure index, main parts section, and reference material. Small numbers in dense assembly drawings benefit from zooming.

• Engine and fuel systems: Gasoline/LPG and diesel engine parts, overhaul-kit contents, Holley and Zenith carburetors, and separate CAV and Simms injection-pump breakdowns.

• Transmission and PTO: Manual and Select-O-Speed transmission parts, single and double clutch assemblies, PTO arrangements, and model-specific shift-pattern decals.

• Hydraulics: Hydraulic Lift Cover & Related Parts views, lift cylinder and linkage components, pumps, flow-control valves, and single and double remote-control valve breakdowns.

• Steering and chassis: Manual Steering Gear Assembly drawings, power steering components, front and rear axles, differential parts, brake controls, wheels, axle extensions, and ballast kits.

• Electrical components: Harness and lamp layouts, starter and generator breakdowns, and instrument-cluster views for identifying electrical parts and their mounting hardware.

• Cab and operator equipment: Standard and reversible seats, canvas cab and safety-frame assemblies, rollbars, seat belts, and body-panel fittings.

Suited to mechanics and experienced owners who can match illustrated callouts to parts tables and already have the service instructions needed for the repair.

Parts Identification and Model-Specific Fit

Part numbers, quantities, replacement references, and application notes accompany more than 100 illustrated assembly views. Shared listings reference the 2000, 3000, 4000, 5000, and 7000 series, with coverage limited to the assemblies and applications shown.

Component serial references: The 3400 diesel eight-speed transmission-PTO decal listing distinguishes units before and from 5J17B. Select-O-Speed piston-spring entries reference 5H26B. These are component-specific application references.

The rear-axle tables identify matched gear sets and replacement-dependent retainers or couplings. Those notes help you check which companion parts are needed before ordering a replacement gear set.

Engine, Fuel, and Transmission Variants

Engine listings distinguish crankshaft-stroke and piston combinations, including configurations that differ from the usual series specification. Fuel-system tables separate injection-pump types and their associated lines, filters, and controls.

Oil-bath and dry air-cleaner assemblies have separate 3400 applications. Radiator and water-pump parts are also cataloged.

Manual transmission listings cover four-, six-, German seven-, and eight-speed arrangements, plus manual reversing and an auxiliary over/under unit. Select-O-Speed figures break out planetary carriers, brake bands, clutch packs, control valves, and single- and two-speed PTO components.

Hydraulics, Steering, and Electrical Layouts

The hydraulic pump section separates assemblies without independent PTO from the engine-mounted gear-pump kit. Flow-control valve entries specify color-matched plungers and housings; remote-valve seal listings distinguish applications across tractor series.

Power steering pump tables distinguish 650-psi assemblies for the 3400/4410 from 1,100-psi assemblies for the 3500/4400. Separate illustrations show the earlier and later pump/reservoir arrangements.

Rear Lamps, Flasher & Wiring and Instrument Cluster & Related Parts show component locations and assembly details. The electrical pages provide parts illustrations rather than circuit schematics or diagnostic charts.

Hardware Data and Repair Scope

Parts descriptions include fastener sizes, seal dimensions, and selected component ratings. The hardware-conversion appendix distinguishes mounting-hole substitutions from threaded connections; mixing metric and inch-thread fasteners can damage mating threads.

This is a parts catalog, not a workshop repair manual. Exploded views show component relationships but do not replace disassembly sequences, torque tables, wear limits, adjustment procedures, or injection-pump calibration instructions.

For hydraulic repair or work involving heavy wheel weights, use the appropriate service instructions for pressure release and safe support.

PDF Contents and Page Breakdown

Supplied as one printable, English-language PDF. The 642-page PDF contains 619 parts-catalog pages, four figure-index pages, one search-guide page, 14 abbreviation pages, and two hardware-conversion pages, plus one supplementary front page and one blank page. All are already included in the total.