Ordering the right pin for your BT820 backhoe shouldn't take an afternoon of guesswork. This 75-page parts catalog maps every component group across the main frame, swing frame, boom, dipperstick, bucket link, and all seven hydraulic cylinders. Exploded views cover the BT820 and BT820V control valves, with full lists for each hydraulic hose run (intake, swing, bucket, stabilizer, thumb arm) and component breakdowns for the swing, boom, dipper, bucket, stabilizer LH/RH, and thumb arm cylinders. Cross-reference part numbers against 12 pages of bucket assembly, or skip ahead to the stabilizer arm and step hardware. Confirm the support cylinder at 18.04 lbs and the boom pin at 2.805 lbs before calling the dealer. Bookmarked by system: tap the cylinder you need, find the number, place the order.
What's Inside This Kubota BT820 Parts Manual
| System | Pages |
|---|---|
| Main Frame | 3-4 |
| Swing Frame | 5-6 |
| Swing Cylinder | 7-8 |
| Boom | 9-10 |
| Dipperstick | 11-12 |
| Bucket Link | 13-14 |
| Bucket | 15-26 |
| Stabilizer Arm | 27-28 |
| Thumb Arm | 29-30 |
| Control Valve | 31-32 |
| Control Valve [Component Parts] ## [Bt820] | 33-36 |
| Control Valve [Component Parts] ## [Bt820V] | 37-41 |
| Hydraulic Hose(Intake) | 42-43 |
| Hydraulic Hose(Swing) | 44-45 |
| Hydraulic Hose(Bucket) | 46-47 |
| Hydraulic Hose(Stabilizer) | 48-48 |
| Hydraulic Hose(Bucket) ## [Bt820V] | 49-50 |
| Hydraulic Hose(Thumb Arm) | 51-51 |
| Cylinder(Swing) [Component Parts] | 52-53 |
| Cylinder(Boom) [Component Parts] | 54-55 |
| Cylinder(Dipper) [Component Parts] | 56-57 |
| Cylinder(Bucket) [Component Parts] | 58-59 |
| Cylinder(Stabilizer) Lh [Component Parts] | 60-61 |
| Cylinder(Stabilizer) Rh [Component Parts] | 62-63 |
| Cylinder(Thumb Arm) [Component Parts] | 64-65 |
| Step | 66-67 |
| Control Lever 1 | 68-69 |
| Control Lever 2 | 70-71 |
| Control Lever 3 ## [Bt820V] | 72-73 |
| Label | 74-75 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Weight: BUSHING | 0.374 Lbs | p. 3 |
| Weight: FITTING GREASE | 0.022 Lbs | p. 3 |
| Weight: BOLT | 0.132 Lbs | p. 5 |
| Weight: SUPPORT CYLINDER | 18.04 Lbs | p. 7 |
| Weight: PIN | 2.805 Lbs | p. 9 |
| Weight: RING INNER | 0.143 Lbs | p. 11 |
| Weight: HEX.BOLT | 0.140 Lbs | p. 15 |
| Weight: ASSY VALVE CONTROL | 30.14 Lbs | p. 31 |
| Weight: ASSY SPOOL BUCKET | 0.352 Lbs | p. 34 |
Kubota BT820 Common Problems This Manual Covers
Weak boom and dipper digging force under load, relief valve part number lookup p. 31
Open the control valve exploded view on page 31. For standard BT820 units, the relief valve assembly is part 7K500-63710 (0.352 lbs), listed in the component parts on page 36. BT820V variants use the separate breakdown starting on page 37.
Manual Section: Control ValveControl valve spool components needed when a function engages intermittently or only partially p. 33
Identify the affected circuit (bucket, boom, swing, dipper) on the control valve diagram, then jump to the component parts list on page 34. Bucket spool assembly weighs 0.352 lbs (0.16 kg) with its own callout. Match the spool, springs, and detent parts as a complete set so you aren't mixing wear surfaces.
Manual Section: Control Valve [Component Parts] ## [Bt820]Cross-referencing hydraulic hose part numbers for sluggish or noisy operation across circuits p. 42
Hoses split across five sections by circuit. Intake on page 42, swing on page 44, bucket on page 46, stabilizer on page 48, thumb arm on page 51. BT820V bucket hoses sit on the separate diagram on page 49. Measure old hose length and fitting type before ordering, since callouts vary by routing.
Manual Section: Hydraulic Hose(Intake)Pin and bushing part numbers for worn boom, dipper, and bucket link pivots with excessive play p. 9
Boom pins are called out on page 9 at 2.805 lbs (1.27 kg) each. Bucket link pins on page 13 weigh 1.386 lbs (0.63 kg). Main frame bushings on page 3 are 0.374 lbs (0.17 kg) and pair with grease fittings at 0.022 lbs (0.01 kg). Order pins and matching bushings together as a set.
Manual Section: BoomCylinder seal kit and component parts for boom, dipper, or bucket cylinder rebuild p. 54
Each cylinder has its own exploded view: swing on page 52, boom on page 54, dipper on page 56, bucket on page 58. Stabilizer LH sits on page 60 and RH on page 62 (not interchangeable). Thumb arm cylinder is on page 64. Verify rod diameter and stroke against the callout before ordering seals.
Manual Section: Cylinder(Boom) [Component Parts]Stabilizer arm pin part numbers after linkage play and instability during digging p. 27
Check page 27 for the stabilizer arm parts, with the primary pivot pin at 1.331 lbs (0.60 kg) and the secondary pin on page 28 at 1.166 lbs (0.53 kg). Confirm which side (LH or RH) you're servicing, then match the cylinder mount pins to the stabilizer cylinder diagrams on pages 60 and 62.
Manual Section: Stabilizer ArmFrequently Asked Questions
What are the replacement specifications for Relief valve assembly?
Relief valve assembly is part number 7K500-63710, quantity four required. BT820V models also list a second relief valve assembly, part number 7K523-85510, quantity two.
What are the replacement specifications for Hydraulic control valve spool components?
Hydraulic control valve spool is part number RB401-70340. It appears in multiple locations within the control valve assembly for both BT820 and BT820V models.
How will I receive this Kubota BT820 Parts Catalog?
A 75-page searchable PDF, ready for instant download. Opens on any device, so you can pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this Kubota BT820 Parts Catalog printable?
Print whatever you need: individual pages, full chapters, or the entire manual. The PDF is fully unlocked.
Are hydraulic system diagrams in this Kubota BT820 Parts Catalog?
Yes. Hydraulic system schematics cover all circuits, control valves, and component specifications for the BT820.
Document Quality
This is a native digital PDF, and you can search and copy the full text. The text in the parts tables is crisp and easy to read, while the line-art diagrams are sharp and clear at any zoom level. All reference numbers on the diagrams are legible, and the pages are clean without any marks or scan artifacts. The document does contain several blank pages, which appear to be intentional placeholders.
Reviews
There are no reviews yet.