Part of the Kubota Parts Manuals.
This is the Kubota TL420 (B20) parts catalog, a 35 page illustrated PDF for the TL420 loader fitted to the B20. It pairs exploded diagrams with reference numbers, Kubota part numbers, quantities, and serial number ranges, so you can identify the exact part before ordering.
Coverage spans the loader frame and hydraulics: the side frame and boom, the control valve and new type control valve, the lever, control lever, and control cover, the link, the cylinder and hydraulic hose group, the boom and bucket cylinder component parts, the hydraulic tube, and the delivery and return tube.
Use it to trace a weak or slow loader circuit, match a leaking fitting or hose to its part number, order a cylinder seal kit for the boom or bucket rams, or rebuild the control valve. The interchangeability legend and serial ranges in the parts lists help you order the correct revision for your machine.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Side Frame | 4-5 | Side LH Frame, Model Label, Caution Label, Side RH Frame, Side Frame Connector, Hex.bolt, Hex.nut, Brace LH |
| Boom | 6-7 | Grease Fitting, Kubota Label, Link, Bucket, Cutting Edge, Leveler Label, TL420 Label |
| Control Valve | 8-9 | Valve Stay, Hex.bolt, Control Refer to L.no. 0G03-L0 Valve, Control Refer to L.no. 0G03-R0 Valve, Hex.nut, Assy Adapter, Assy Elbow |
| Control Valve (New Type) [Component Parts] | 10-11 | Control Valve, Assy Inlet Section, Inlet Housing, Assy Spool Section, Clevis End, Spool Spacer-Cap, Plate-Seal, Cap Screw-soc.hd |
| Lever | 12-13 | Bushing, Rod, Washer |
| Control Lever | 14-15 | Lever Grip, Rod End Joint, Collar, Rod |
| Control Cover | 16-17 | Cover, Hex.bolt, Control Label, Assy Limiter, Rubber Cushion |
| Link | 18-19 | Bushing, Rod, Connecting Rod |
| Cylinder/Hydraulic Hose | 20-21 | Cylinder LH Refer to L.no. 0G06-R0 for, Cylinder RH Refer to L.no. 0G07-L0 for, Elbow, Long Elbow, White Mark, Mark.yellow, Blue Mark, Red Mark |
| Cylinder (Boom) LH [Component Parts] | 22-23 | Boom Cylinder LH, Tube Comp LH, Rod Comp, Head, Piston, Seal Kit, Grease Fitting |
| Cylinder (Boom) RH [Component Parts] | 24-25 | Boom Cylinder RH, Tube Comp RH, Rod Comp, Head, Piston, Seal Kit, Grease Fitting |
| Cylinder (Bucket) LH [Component Parts] | 26-27 | Bucket Cylinder LH, Tube Comp LH, Rod Comp, Head, Piston, Seal Kit, Grease Fitting |
| Cylinder (Bucket) RH [Component Parts] | 28-29 | Bucket Cylinder RH, Tube Comp RH, Rod Comp, Head, Piston, Seal Kit, Grease Fitting |
| Hydraulic Tube | 30-31 | Hex.bolt, Clamp, Washer |
| Delivery/Return Tube | 32-34 | Delivery Tube, Return Tube, Joint, Gasket, Hex.bolt, Hydraulic Hose, Green Mark, Orange Mark |
| Accessories and Service Parts | 35 | Operator S Manual, Kit French, Caution French Label, Warning French Label, Leveler French Label, Control French Label, Lubricate French Label, Operator S Manual French |
