Description

Thomas 173 HL”S” 1995 Parts Catalog

If you’re working on a Thomas 173 HL”S” and you need a part number, you don’t have time to guess. I’ve seen guys order the wrong seal three times because they used a generic catalog. That costs billable hours and reputation. This is the original OEM Parts Catalog from Thomas Equipment Limited, dated 1995 – 105 pages of exploded diagrams, callouts, and part numbers. No reprints, no aftermarket interpretation. You get the same book the dealer’s parts counter uses.

Let me walk you through what’s inside.

Thomas 173 HL”S” 1995 Parts Catalog: Main Frame and Fuel System

Turn to page 1.1 and you’ll see the fuel system laid out – tank, lines, injectors, filters. Every component has a reference number that maps to the parts list table. No guessing which banjo bolt fits. You need the charge pressure line? That’s in the table. This manual is specific to the 173 HL”S” serial range LK000555–LK000929. If you try to use a generic Internal Combustion Engine diagram from the internet, you’ll chase ghosts.

Hydraulic System Diagrams for Boom Lift and Bucket Tilt

Hydraulic leaks are the number one time-waster on a skid steer. Section B-7 through B-8 gives you the boom lift circuit and bucket tilt circuit with every seal, fitting, and cylinder rod part number. On page 4.2 you’ll see the boom lift circuit exploded view. I’ve used this to find a proprietary O-ring that no parts store stocks. The OEM number is right there – order it, install it, move on.

That kind of specificity is why I keep a binder of these OEM catalogs on the shelf. If you’re a shop owner letting a rookie rebuild a tilt cylinder without the right parts list, you’re setting yourself up for a callback. This manual eliminates the guesswork.

What Does the Controls Section Cover?

Section A-9 through A-12 walks through the control levers (right-hand and left-hand side), foot pedals, and throttle linkage. You get the cable part numbers, bracket screws, even the little plastic bushings that crack after a few hundred hours. The section also includes the restraint bar and brake cable (B-1). If the brake pedal feels spongy and you need the cable assembly number, look on page 2.4. One number. Done.

This manual also covers the quick tach (A-3) and seat belts/shields (A-4). That might sound trivial, but the seat belt retractor assembly for a 1995 Thomas can be hard to cross-reference on your own. The catalog saves you the phone call to the dealer.

5 Sections That Help You Track Down Parts

The manual is divided into five major groups: Main Frame, Controls, Final Drive Transmission, Hydraulic System, and Hydrostatic Drive System. Each group breaks down into subsystems with their own page numbers. For example, under Final Drive Transmission you get the axle assembly (B-3, page 3.2), idler sprocket (B-4), chains and connecting links (B-5), and parking brake (B-6). If you snap a chain because you guessed the pitch, that stops production for a day. The right catalog gives you the exact chain link part number.

Same goes for the hydrostatic drive system – section C-4 through C-6 covers both right and left side drive circuits and the front hydrostatic pump. If you’re swapping a pump and need the mounting gasket, it’s right there in the parts list. No aftermarket reprint that blurs the bolt locations.

Order Parts Correctly with OEM Part Numbers

When you call the Thomas dealer, they’re going to ask for the part number from this catalog. If you hand them a sketch, you’ll get the wrong piece. The tables in this 1995 Parts Catalog list the Thomas part number, quantity per machine, and a description. I’ve seen guys order three pivot pins from the wrong series because they didn’t have the exploded view. The Thomas 173 HL”S” uses specific pivot pin lengths – the catalog shows you exactly which one goes in the boom lock (A-6).

Also, note that the hydraulic oil cooler and filter is in section C-1 (page 4.7). If you buy a universal cooler without checking the OEM dimensions, you’ll be fabricating brackets. This manual prevents that by giving you the factory part number.

If your machine was built after 1996, some control systems moved to CAN Bus Network wiring – that’s not in this catalog. But for a 1995 173 HL”S”, you’re looking at simple hard-wired switches and solenoids. The parts catalog covers every electrical component that carries a Thomas part number, so you can order the correct switch or solenoid without digging through bins.

Related manuals you might need: Thomas T-233 HD, T-203 HD, T-183 HD, T-173 Parts Catalog – OEM Parts Manual, Thomas 173 HLS II 1996 Parts Catalog – Factory OEM Manual, and Thomas T245 HDK 2002 Parts Catalog – OEM Factory Manual.

Does this manual include wiring diagrams?

No – this is a parts catalog, not a service manual. It has blow-up diagrams and part numbers.

How do I find the correct part number for my 173 HL”S”?

Use the index starting on page 3. Each assembly is broken down by system. For instance, the Fuel System starts on page 1.1 and shows every component from the tank to the injectors with referenced part numbers. Cross-check your serial number range – this covers LK000555 to LK000929. If you see an item number, look it up in the parts list table. That table gives you the OEM part number, quantity, and description. Never substitute aftermarket parts without verifying fitment. This manual ensures you get the exact Thomas part.

If you want to stop wasting time on wrong parts, access the factory manual from AutoRepairManuals. It’s the same 105-page bound-in-binder document that sits in the dealer’s service department. You get the complete Parts Catalog for the Thomas 173 HL”S” (1995) in digital format – searchable, printable, and ready to use at your workbench. No aftermarket garbage. Access the Factory Manual now.