Kubota KX042-4 Compact Excavator Parts Manual (BKIDA5136)

The Kubota KX042-4 is a rubber-track compact excavator, the kind you see on jobsites doing trenching, utility work, and fine grading. The Kubota KX042-4 parts manual is what parts counters, independent shops, and owners use when they’re trying to nail down the exact piece in a boom, cylinder, or undercarriage before they start tearing things apart. People reach for this when a pin’s worn, a seal’s blown, or a track motor’s acting up and they want the right parts on the bench first. This BKIDA5136 book is about what’s on the machine and how it’s put together, not how to fix it.

What this manual helps you do

• Identify every component in the KX042-4’s major assemblies (engine, hydraulics, swing, travel, undercarriage, cab, electrical) using exploded diagrams.
• Locate the correct OEM Kubota part number for things like seal kits, pins and bushings, filters, hoses, and hardware before you call the dealer.
• Look up quantity-per-machine so you know how many seals, O-rings, or bolts to order for a full cylinder or valve rebuild.
• Cross-reference older part numbers to newer superseded Kubota numbers when you’re dealing with an updated replacement.
• Verify that a part on the shelf or from a salvage machine actually matches what your specific KX042-4 build uses.

Who this is for

This parts manual fits an independent mechanic, contractor with their own KX042-4, Kubota dealer parts staff, or fleet maintenance tech trying to keep downtime short. If you’re after torque specs, disassembly sequences, or hydraulic test procedures, you want the Workshop Service Manual, not this parts catalog.

FAQ

Q: Does this cover the engine, hydraulics, and travel/swing drives on the KX042-4?

A: Yes. A Kubota KX042-4 parts manual like BKIDA5136 normally breaks down the engine, pumps, valves, cylinders, swing motor, travel motors, and undercarriage in exploded views.

Q: Are the part numbers in this manual current?

A: The manual shows the OEM numbers and usually notes Kubota supersessions, but the dealer’s system is always the final word on the latest active number.

Bottom line: If you need to identify and order the right hard parts for a Kubota KX042-4, this is the right manual; if you need “how-to” repair steps, keep looking for the WSM instead.