Description

Allis-chalmers 840, 840B 1983 Parts Catalog

Frustration hits when you’ve got a torn-down Allis-chalmers 840 and the replacement part doesn’t fit because someone guessed the number. That’s what happens with aftermarket parts catalogs. This Allis-chalmers 840, 840B 1983 Parts Catalog changes that. 379 pages of factory-sourced part numbers, exploded views, and the exact hardware callouts Allis-Chalmers used when they built these tractors at their Milwaukee plant.

Allis-chalmers 840, 840B 1983 Parts Catalog – What You Get

You get a complete factory parts breakdown for both the 840 and 840B models. The catalog covers the articulated wheel loader and the 840 forklift variant. Sections include AIR INTAKE & EXHAUST with air cleaners and manifolds, ATTACHMENTS like buckets and carriages, AXLE STEERING & WHEELS with multiple PR65H axle configurations, BRAKE lines and cylinders, CAB options from Full Vision and Sims, COOLING SYSTEM with radiators and oil coolers, and the DRIVE TRAIN including transmission clutches and converter assemblies. Every part is keyed to an illustration and a part number.

Is This the Right Manual for Your 840B?

If you own or work on an Allis-chalmers 840 or 840B articulated wheel loader, or the 840 forklift, this is the official parts catalog from 1983. It does not cover the HD series or other models. Check the model tag. If it says 840 or 840B, you’re in the right place. The catalog also includes a recommended dealer stock list and both alphabetical and numerical indexes to find parts fast.

OEM Factory Print – Why It Matters

Aftermarket catalogs often use generic part numbers or skip hardware like bolts, lockwashers, and nuts. This catalog lists those, indented under the item they attach to. The foreword explicitly states that common hardware not identified is not included unless specified. That level of detail keeps you from ordering a bucket without the hardware. The part number on the cover is 9006763. This is the exact document Allis-Chalmers sent to dealers in May 1983. No reprint, no scan of a scan. Original OEM print.

7 Major Sections You Need to Know

The index organizes everything into seven main areas: AIR INTAKE & EXHAUST, ATTACHMENTS, AXLE STEERING & WHEELS, BRAKE, CAB, COOLING SYSTEM, and DRIVE TRAIN. Each section breaks down into subassemblies. For example, under DRIVE TRAIN you’ll find the transmission with forward/3rd clutch groups, converter group, charging pump, and parking brake. Under AXLE, the differential and brake parts are listed by PR65H axle size (x2, x12, x14, x38, x64, x84). This lets you pinpoint exactly which axle configuration you have.

How to Use the Index System

Start with the alphabetical index at the front. Find the component, say “Transmission.” The numerical index follows and lists every part number with its grid location and page number. The pages are numbered sequentially from 1 to 379. When you turn to a section, the left-hand page shows an illustration with item numbers. The right-hand text page lists each item number, part number, quantity, and description. Match the item number from the drawing to the text. That’s it. No cross-referencing outside the manual.

Torque Specs and Fluid Capacities?

This is a parts catalog, not a repair manual. It does not contain torque specs or fluid capacities. For those, you need the service manual for the 840/840B. But for ordering parts, this is the only source you should trust. If you need the exact part number for a master cylinder or a muffler, the page references are given in the index. For example, the master cylinder for the brake system is on page 279. The muffler for the 840 is on page 69. The part numbers there are what Allis-Chalmers stamped on the box.

Q: Does this catalog include wiring diagrams?

A: No. This is a parts catalog, not a service manual. It lists every part with numbers and illustrations.

Q: Can I order parts directly from this catalog using the part numbers listed?

A: Yes, the part numbers are original OEM numbers. However, some parts may have been superseded or discontinued. The catalog includes a recommended dealer stock list at the end. To order, take the part number to an Allis-Chalmers dealer or use it to cross-reference with current aftermarket suppliers. For example, if you need a water pump for the 840B, the section on COOLING SYSTEM pages 83-89 lists the part. That number is what the factory used. Dealers can look up supersessions. Do not assume the number is still active without checking – but it gives you the exact starting point. Without this catalog, you’re searching by guesswork.

If you need to keep a 840 or 840B running, you need the factory part numbers. Everything else is a guess. Allis-Chalmers HD-6EP Parts Catalog – Factory OEM 374 Pages is another option for HD series, but for these loaders, this is the one. Allis-chalmers HD21A 1965 Parts Catalog – Factory OEM and Allis-chalmers HD16D, HD16DC 1970 Parts Catalog – OEM Factory Specs cover other models. For background on the industry, see Automotive Industry Overview. Access the Factory Manual now.