1987–2002 Ford 1920 4-Cylinder Compact Tractor Parts Catalog PDF

This illustrated parts catalog covers the 1987–2002 Ford 1920 four-cylinder compact tractor in the 20 Series, with separate application notes for 2WD, FWD, NH-NA and NH-E configurations.

Search, Bookmarks and PDF Contents

Finding figures and reading drawings: Parts tables and figure headings support PDF text search; lettering inside drawing images is not searchable. Embedded bookmarks open the figure-search instructions, index, catalog and reference appendices. Small labels in the cab wiring diagram require zooming.

One printable, English-language PDF contains 325 pages: 303 catalog pages, a three-page figure index, 14 abbreviation pages and two hardware-conversion pages. The total also includes an opening supplementary page, a figure-search instruction page and one blank page.

Engine, Driveline and Loader Valve Assemblies

These selected topics highlight the main assemblies; the catalog also includes seat assemblies and drawbar kits.

• Engine and cooling: Exploded views and parts listings for the cylinder block, cylinder head, crankshaft, balancer, timing gear case, oil pump, water pump, radiator and engine gasket kit.

• Fuel and air systems: Injection pump and injector breakdowns, fuel lines, air cleaners, pre-cleaners and the wet-air-cleaner / dual-fuel-filter configuration.

• Transmission and PTO: Separate parts figures for the 12 x 4 and Synchronized Shuttle Shift transmissions, double clutch, creeper gear kit and multi-speed PTO drive.

• Axles, brakes and steering: 2WD and FWD front axles, final-reduction gears, brake assemblies, differential-lock linkage, steering linkage, power steering cases, pumps and cylinders.

• Hydraulic lift and loader controls: Hydraulic Power Lift components, draft-control linkages, three-point linkage, hydraulic piping and loader-specific two-spool remote control valve assemblies.

• Electrical and operator equipment: Alternator and starting-motor breakdowns, instrument-panel layouts, wiring harness drawings, an NH-E cab wiring diagram, ROPS and soft-side cab parts.

Suited to owners and parts staff who can match exploded-view references to the tractor and check component application notes before ordering.

Parts Ordering and Application Notes

Each assembly pairs a numbered drawing with part numbers, quantities and application notes. Reviewing the washers, bolts, nuts and spacers alongside the larger components helps build a replacement-parts list before repair work begins.

Serial-number notes apply to individual entries rather than one overall tractor range. Assembly listings also identify included components, replacement kits and parts that are not serviced separately.

This is a parts reference, not a procedural service manual. The exploded views show component relationships and hardware positions; they do not supply step-by-step overhaul instructions, adjustment procedures or diagnostic test sequences.

Engine Components and Cylinder-Head Cautions

The engine pages distinguish short-block, bare-block and long-block assemblies. Long-block notes identify included components and exclusions such as the starter, belts, alternator and flywheel, which matters when comparing an assembly listing with the parts needed for a repair.

For the earlier NH-NA cylinder head, the catalog warns that press-fitting a replacement prechamber can crack the head. The affected prechamber is therefore not serviced separately.

Transmission and Axle Parts

Separate front-transmission figures distinguish conventional gearing from SSS synchronizer assemblies. Rear-transmission listings further separate NH-NA arrangements from NH-E multi-PTO equipment, while the creeper gear section identifies parts for each transmission configuration.

Replacement notes go beyond naming the gears. The 12 x 4 reverse-idler shaft calls for its specified matching thrust washer, and a PTO input-shaft update identifies additional bearing and retaining-ring requirements.

Front-axle and final-reduction drawings distinguish the FWD hardware from the 2WD arrangement. Differential and differential-lock views identify the associated gears, shafts, bearings and linkage parts.

Loader Controls and Electrical Drawings

Loader valve variants: The catalog distinguishes Zexel and Kayaba valve assemblies used with the 7108 loader from the Prince valve and piping kit used with the 7308 loader. These sections cover the listed control assemblies and tractor piping, rather than complete loader repair procedures.

Electrical reference: Tractor harness layouts show component placement, while the NH-E cab wiring diagram maps the heater blower, wipers, washer pump and work lamps. Wire-color codes and relay terminal markings provide connection detail beyond the accompanying parts list.

Verify part numbers against your tractor’s serial number and use proper supports when handling heavy assemblies.

Sample Wheel Fitments and Piston Ring Sizes

Wheel listings include front assemblies for 5.50-16 and 6-16 tires on 2WD tractors, plus rear turf-wheel assemblies for 18.4-16.1 tires. The entries distinguish the wheel applications rather than prescribing tire pressures.

The piston listings distinguish a standard ring kit with a 4 mm oil ring from the later NH-NA kit with a 3 mm oil ring used on and after UP43784. These are parts-identification dimensions, not wear limits.