Kubota M128GX-2, M135GX-2 Utility Tractor Parts Manual

The Kubota M128GX-2, M135GX-2 are mid-size utility tractors you’ll see on mixed crop and livestock farms, snow work, and heavier loader jobs. The people who reach for a Kubota parts manual on these rigs are usually farm owner-operators, independent mechanics, or parts counter staff trying to nail down the right bit before the tractor is split. They’re planning a repair, lining up seals and gaskets ahead of time, or sorting out what changed between early and later machines. If that sounds like what you’re doing, this parts manual, not a service manual, is what you’re looking at here.

What this manual helps you do

• Identify the exact OEM Kubota part number for engine, transmission, axle, PTO, hydraulic, and electrical components on the M128GX-2 and M135GX-2.
• Locate small pieces in assemblies—pins, shims, seals, snap rings—using exploded diagrams so you don’t guess at what’s missing.
• Look up the correct quantity of bolts, washers, and gaskets when you’re planning a clutch job, front axle reseal, or hydraulic repair.
• Cross-reference older numbers to updated ones using the multiple revisions (BKIDK5127, BKIDK5128, BKIDK5162, BKIDK5163) covered by this listing.
• Verify the part number before you order from a Kubota dealer or online source, so the box that shows up actually fits your tractor.

Who this is for

This suits an independent ag mechanic, farm owner-operator, Kubota dealer parts person, or anyone maintaining a small fleet of orange utility tractors. If you need torque specs, wiring diagnostics, HST pressure checks, or step‑by‑step repair procedures, you want the Kubota Workshop Manual instead, not this parts catalog.

FAQ

Q: Does it cover the whole tractor, including hydraulics, PTO, and 3-point hitch?

A: Yes, parts manuals for these models normally include engine, transmission, front and rear axles, hydraulics, PTO drive, 3‑point hitch, steering, fuel, cooling, electrical, and sheet metal.

Q: Are the part numbers in here current?

A: The manual set includes several Kubota revisions, so many superseded numbers are already noted, but your dealer’s system is the final word on the latest substitutions.

Bottom line: If you’re trying to identify and order the right parts for a Kubota M128GX-2 or M135GX-2, this parts manual is what you want; if you’re trying to learn how to do the repair, keep looking for the Workshop Manual.