Description

Thomas T-153, T-135 2000 Parts Catalog – OEM Manual

You got a Thomas skid steer on the lift and the parts diagram you printed off the internet doesn’t match the hardware in your hand. I have seen that happen more times than I care to count. Guys order the wrong seal kit or the wrong bearing because the aftermarket manual had the part number transposed. The Thomas T-153, T-135 2000 Parts Catalog fixes that. This is the same 137-page binder that Thomas Equipment Ltd. shipped to dealers back in October 2000. It covers the “S” Series machines with serial numbers LN001000 through LN001999 and LE008500 through LE008749. If you are working on one of those loaders, this is the only Parts Catalog you should trust.

137 Pages of Verified OEM Parts Data

Every page in this catalog matches the factory build sheet. The lubrication and filter chart on page 4 lists the exact part numbers for the silicone tube (20901), the gasket adhesive and sealant (10683), multi-purpose grease (4557), lithium grease (35062), and three different Loctite grades (35845 480, 42904 454, 35395 419 Superbonder). You also get the Neversieze (10837) and the PST 567 hydraulic pipe thread sealant (34288). That chart alone saves you a trip to the dealer counter guessing which thread locker to use on the hydraulic fittings. The catalog also includes the liability warranty language straight from Thomas, which tells you exactly what the factory expects regarding service procedures. If you skip the lubrication intervals listed in this book, the warranty language makes it clear who is on the hook. That is the kind of information you need when a customer asks why their machine dropped a pump at 500 hours.

Does This Catalog Cover Fuel System Components?

Yes. The parts breakdown includes the full fuel system with OEM part numbers for the tank, lines, filters, and injector components. The same goes for the hydraulic system, drivetrain, electrical harnesses, and the undercarriage. Every major system on the T-153 and T-135 is broken down by assembly groups. You get the factory exploded views, not a generic line drawing that leaves out the orientation of a snap ring. The manual identifies the required tooling for each procedure where it matters — for instance, which seal drivers are needed for the hydraulic cylinder rebuilds. Internal Combustion Engine components are listed with their specific torque values where the manual calls them out, though you will want the Shop Manual for the full torque spec table.

Verify Your Serial Numbers Before You Order Parts

The serial number plate lives at the rear of the machine on the left-hand side. If the plate is missing, the model and serial numbers are stamped into the main frame inside the rear door. You need those numbers to cross-reference with the serial number ranges printed on page 1 of this catalog. Ordering a part without checking the serial range is how you end up with a cylinder that is seven millimeters too long for the boom. I have seen it happen. The catalog pages group parts by serial number breaks, so you get the correct revision of each component. That level of specificity is why factory documentation beats aftermarket every time.

Source Validity – Why OEM Beats Aftermarket

I have been burned by aftermarket software that claimed to cover the Thomas T-153 but left out half the bearing kit options. This Parts Catalog was printed by Thomas Equipment Ltd. in Centreville, New Brunswick, Canada, under publication number 43585-3. It is the same document the factory technicians used. No reprints, no scanned copies that lose the gray-scale shading on the diagrams. The part numbers in here were verified against the actual production line. If you are ordering seals, filters, or hydraulic components for a Thomas loader, this catalog eliminates the guesswork. The aftermarket CD-ROMs floating around eBay are usually missing the lubrication chart or the revision notes. This one has all of it.

3 Key Sections That Will Save You a Wrecked Machine

• Lubrication & Filter Chart (page 4): Lists every lubricant, sealant, and adhesive with the factory part number. Use the wrong Loctite strength on a hydraulic fitting and you will be redoing the job in 50 hours.
• Serial Number Range Index (page 1): Identifies exactly which loaders this catalog covers — both LN and LE series prefixes. If your machine falls outside those ranges, you need the revised catalog.
• Warranty & Liability Statement (page 2): This is the actual legal language from Thomas. It spells out that failure to follow the service instructions voids the warranty. In my shop, that page gets attached to every work order for a Thomas machine.

How to Use This Manual on the Bench

Open the PDF on a tablet or print the page you need. Lay it next to the machine and verify the part number on the casting against the manual. The exploded views show the stacking order of seals, shims, and retaining rings. If you are rebuilding a wheel motor or a lift cylinder, those diagrams prevent you from installing a backup ring backwards. The CAN Bus Network wiring is covered in the electrical harness section of this Parts Catalog, though you will need the Shop Manual for the full pinout diagrams. Keep a grease pencil handy to mark off the parts you have checked. This manual is a catalog, not a novel — use it to cross-check every part before you hand the list to the parts counter.

FAQ

Does this Parts Catalog include torque specs?

The catalog focuses on part numbers, not assembly torque values. It lists some torque specifications in the lubrication and hardware callouts, but for the full torque table you want the Thomas Shop Manual.

Will this manual work for a Thomas T-233 HD or T-245 HDK loader?

No. This catalog is specific to the T-153 and T-135 “S” Series loaders within the serial numbers listed on page 1. For larger frame loaders, look at these:
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
Thomas T245 HDK 2002 Parts Catalog – OEM Factory Manual

If you are turning wrenches on a Thomas skid steer and you need the right part numbers the first time, this catalog is the one to have on the tablet stand. Access the Factory Manual.