Description

Fiat-allis 670, 670 DT Parts Catalog – OEM Factory Manual

You have a Fiat-allis 670 or 670 DT on the lift, and the part you need isn’t the one that came off. That happens when someone before you used a third-party cross-reference instead of the real factory documentation. This Parts Catalog is the original FIAT Trattori print – 359 pages, five languages, and the exact exploded views that match what’s bolted onto the machine. No aftermarket guesswork, no reprints from unknown sources. Just the OEM data you need to order right the first time.

I’ve seen shops waste half a day because they ordered a bearing based on a measurement rather than the stamped number from the catalog. That mistake costs billable hours and leaves a machine sitting. This manual stops that. It covers both the standard 670 and the 670 DT (crawler version), with separate sections for each variant. Page 11 lists every model and serial number range – you verify your unit before you order a single part.

Ordering Parts – Page 5 Instructions

Page 5 lays out the ordering rules. Read them. Fiat-allis used a specific part numbering system that doesn’t cross over to generic catalogs. The manual tells you what information the dealer needs: model, variant, part number, and quantity. Skip that step and you get the wrong seal or the wrong piston ring. The manual also includes a separate “Modifications” section starting on page 1M – those tables show supercessions and engineering changes. If your 670 DT was built after a certain date, you need those updates.

Model List and Variation List – Orange Paper Sections

Two sections printed on orange paper make them easy to flip to on a greasy bench. The Model List (page 11) identifies the base configurations. The Variations List (page 13) covers factory options – different PTO setups, hydraulic pumps, track widths. You match your machine’s serial number to the variation code before you dig into the parts plates. Miss that step and you’re ordering parts for a machine that doesn’t exist.

7 Subgroup Index Categories

The Subgroup Index starts on page 17/1. It breaks the machine into logical groups: engine, transmission, final drive, hydraulic system, steering, chassis, electrical. Each subgroup has its own plate and part list. The Spare Parts Index on page 19/1 is an alphabetized cross-reference – if you know the part name but not the number, that’s where you start. That index alone saves you from flipping through 300 pages blind.

Miscellanea Tables – Bearings, Cables, Terminals, Tubes

Pages 1T through 7T cover the odds and ends that mechanics often source wrong. Bearings (page 1T) lists every bearing in the machine by size and type – not just part number, but industry cross-references. Electrical cables (page 3T) gives you gauge, length, and terminal specs. The terminal and boot table (page 5T) shows which connectors fit which cable. The insulation tube table (page 7T) covers the protective sleeves for harnesses. If you’re rewiring a 670 DT that has chaffed harnesses, this data is critical.

Does This Catalog Cover the 670 DT Differently?

Yes. The 670 DT (Dual Tracks) has different final drives, undercarriage components, and hydraulic routing compared to the wheeled 670. The catalog treats them as separate models with their own plates. You’ll see “670 DT” stamped in the corner of each relevant plate. The Variation List on orange paper also flags any part that changed between the two. That level of differentiation is what you don’t get from a generic parts website.

Every plate in this catalog is a line drawing with exploded view, callout numbers, and a corresponding parts list with quantities per machine. The lists include hardware – bolts, washers, lock nuts – with the correct grade and thread pitch. I’ve seen stripped threads on a Fiat-allis transmission because someone used a Grade 5 bolt where Grade 8 was called for. This manual prevents that.

For related machines, check the Fiat-Allis HD41 Parts Catalog – 370-Page OEM Factory Manual for the big dozer, or the Fiat-Allis 12G-B 1979 Parts Catalog – OEM Factory Manual 337 Pages for the grader line. The Fiat-allis 6G Parts Catalog – OEM Factory Manual 559 Pages covers another common loader/dozer variant.

This is an original factory document – not a scan of a scan. The PDF is searchable, which means you can type “670 DT final drive” and jump straight to the plate you need. No flipping through 359 pages of paper unless you want to. Read more about the Automotive Industry Overview to understand why OEM documentation matters for heavy equipment. The same reasoning applies to construction machinery – liability and accuracy are non-negotiable.

Also worth reading the Automotive Industry Overview for context on parts traceability.

Does this catalog include exploded view diagrams?

Yes. Each subgroup plate is a detailed line drawing with callout numbers. The corresponding parts list gives the OEM part number, description, and quantity per assembly. The catalog also includes the “Use of the Catalog” guide (page 9) that explains how to read the plates and interpret the notes. There are no photographs – these are factory engineering drawings, which are actually more accurate for identifying hardware and shapes. The drawings show cross-sections and hidden lines so you can see how parts fit together. For the 670 DT, the undercarriage plates include track chain, rollers, sprockets, and idlers with specific part numbers for each track width option listed in the Variation List.

Can I use this for the 670 DT model?

Yes – the catalog covers both 670 and 670 DT in separate sections with distinct plates.

Don’t trust a parts list from someone who copied the numbers off a photo. Get the factory document that FIAT Trattori printed. Access the Factory Manual now and keep your Fiat-allis 670 or 670 DT running with the right parts.