Part of the Kubota Parts Manuals.
This is the Kubota factory parts catalog for the TL420A front loader, the loader fitted to Kubota compact tractors such as the B20. Its 30 pages present exploded diagrams with reference numbers, Kubota part numbers, quantities, and serial ranges so you can identify each loader component before ordering.
The catalog covers the full loader: the side frames and mounting, the boom and bucket, the control valve and its internal component parts, the control lever, cover, and linkage, the boom and bucket cylinders with their seal kits, and the hydraulic hoses, tubes, and delivery and return lines that feed them.
Loaders in this class are worked hard, so pins wear and cylinders and valves develop leaks. This catalog is the fast way to match seal kits, hoses, pins, and valve parts to your exact machine, avoiding the wrong number guesswork that makes hydraulic repairs drag on.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Side Frame | 3-4 | Frame Side LH, Frame Side RH, Connector Side Frame, Brace LH, Brace RH, Hex.Bolt |
| Boom | 5-6 | Pin, Fitting Grease, Comp Link, Bucket, Edge Cutting |
| Control Valve | 7-8 | Stay Valve, Hex.Bolt, Washer Spring Lock, Valve Control, Assy Adapter, O-Ring |
| Control Valve [Component Parts] | 9-10 | Valve Control, Assy Inlet Section, Assy Spool Section, Cap Spool, Kit Detent, Kit Tie Rod |
| Lever | 11-12 | Bushing, Collar, Cir-Clip External, Rod, Pin Cottre |
| Control Lever | 13-14 | Lever Control, Grip Lever, Pin Clevis, Joint Rod End, Hex.Jam Nut, Rod |
| Control Cover | 15-16 | Cover, Hex.Bolt, Washer Sprint Lock, Label Control, Assy Limiter, Cushion |
| Link | 17-18 | Bushing, Collar, Cir-Clip External, Rod, Hex.Jam Nut |
| Cylinder and Hydraulic Hose | 19-20 | Cylinder 1, Cylinder 2, Band Code, Hose 1 Hydraulic, Hose 2 Hydraulic, Hose 8 Hydraulic |
| Cylinder (Boom) [Component Parts] | 21-22 | Tube 1 Comp, Rod 1 Comp, Head 1, Piston 1, Kit 1 Seal |
| Cylinder (Bucket) [Component Parts] | 23-24 | Tube 2 Comp, Rod 2 Comp, Head, Piston, Kit Seal |
| Hydraulic Tube | 25-26 | Tube 1 Hydraulic, Tube 2 Hydraulic, Tube 3 Hydraulic, Tube 4 Hydraulic, Clamp 1, Clamp 2 |
| Delivery and Return Hose | 27-29 | Hose 5 Hydraulic, Hose 6 Hydraulic, Hose 7 Hydraulic, Band Code, Adapter, Joint |
| Accessories and Service Parts | 30 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hose 1 Hydraulic Length | 27.8 inches | p. 20 |
| Hose 2 Hydraulic Length | 29.3 inches | p. 20 |
| Hose 8 Hydraulic Length | 22.0 inches | p. 20 |
| Hose 9 Hydraulic Length | 41.5 inches | p. 20 |
| Hose 5 Hydraulic Length | 53.6 inches | p. 28 |
