Kubota TL420(B20) Front Loader Parts Manual

The Kubota TL420(B20) is the front loader you’ll see hanging off the nose of compact Kubota tractors, same general size class as my BX and my L-series. The Kubota TL420(B20) Front Loader parts manual is what I’d grab when I’m trying to sort out which pin, bushing, or cylinder seal kit I actually need before I tear into the loader on a Saturday. Folks who maintain their own machines, independent shops, and parts counter people all lean on this kind of book to avoid wrong orders and repeat trips to the dealer. If you’re trying to see how the loader goes together and get the right Kubota numbers, this is the right type of manual.

What this manual helps you do

• Identify every component in the TL420(B20) loader arms, cross tube, and linkage using exploded diagrams and callouts.
• Locate the correct pins, bushings, shims, and hardware for bucket pivots, quick-attach points, and loader mounting brackets.
• Look up OEM Kubota part numbers for hydraulic cylinders, hoses, hard lines, and valve-related loader parts so you can order them once and right.
• Cross-reference older TL420(B20) part numbers with superseded Kubota numbers when you’re matching what’s on your machine to what the dealer now sells.
• Verify the quantity and placement of small parts like grease fittings, snap rings, and spacers before reassembly, instead of guessing on the bench.

Who this is for

This fits a farm owner-operator, independent ag mechanic, or Kubota dealer parts person who needs accurate part numbers and diagrams for the TL420(B20) loader. If you’re looking for torque specs, repair steps, hydraulic pressure checks, or adjustment procedures, you want the Workshop/Service Manual, not this parts catalog.

FAQ

Q: Does this cover the hydraulics on the TL420(B20) loader itself?

A: Yes, parts manuals like this typically show the loader cylinders, hoses, hard lines, and related loader-mounted hydraulic components in exploded views.

Q: Are the part numbers in here the latest Kubota numbers?

A: The manual shows the OEM numbers used at the time and usually notes superseded numbers, but the dealer’s system is the final word on the most current part number.

Bottom line: If you already know how to wrench and just need diagrams and Kubota numbers for the TL420(B20) loader, this is what you want; if you need how-to repair instructions, keep looking for the service manual instead.

Table of Contents:

• Instructions for Parts Books
• |ALL PRODUCT INDEX
• SIDE FRAME
• BOOM
• CONTROL VALVE
• CONTROL VALVE (NEW TYPE) [COMPONENT PARTS]
• LEVER
• CONTROL LEVER
• CONTROL COVER
• LINK
• CYLINDER/HYDRAULIC HOSE
• CYLINDER (BOOM) LH [COMPONENT PARTS]
• CYLINDER (BOOM) RH [COMPONENT PARTS]
• CYLINDER (BUCKET) LH [COMPONENT PARTS]
• CYLINDER (BUCKET) RH [COMPONENT PARTS]
• HYDRAULIC TUBE
• DELIVERY/RETURN TUBE
• ACCESSORIES AND SERVICE PARTS

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