Need the right part number for your Kubota RCK54-15BX mower? This catalog works system by system across every assembly on the 54-inch deck: universal joint, bevel gear case, input shaft and center pulley, side pulley, tension pulley, mower deck shell, front and rear gauge wheels, discharge cover, and mower linkage. Each assembly pairs an exploded view with an itemized parts list showing OEM numbers, quantities, and interchangeability data across configurations. Cross-reference tables confirm which components swap between variants before you order. Input shaft shims come in 0.1, 0.2, and 0.3mm; the bevel gear kit spans a 16 to 19-tooth range. Ordered the wrong part once already? Bookmarks jump straight to any assembly by name, and keyword search pulls the correct number in seconds.
What's Inside This Kubota RCK54-15BX Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Universal Joint | 4-5 | Assy Joint Universal, Yoke Quick, Yoke PTO, Shaft Joint, Assy Joint Cross, Nipple Grease |
| Bevel Gear Case | 6-7 | Stay Case Lh, Nipple Grease, Shim Adjust, O Ring, Case Bevel Gear, Plug Breather |
| Input Shaft/Center Pulley | 8-9 | Shaft Pinion, Kit Gear Bevel, Shim, Bearing Ball, Seal Oil, Pulley Center |
| Pulley Holder/Blade | 10-11 | Holder Pulley Center, O Ring, Bearing Ball, Oil Seal Upper, Boss Spline, Blade, Kit Blade |
| Side Pulley/Blade | 12-13 | Holder Pulley, Bearing Ball, Shaft Side Blade, Blade, Oil Seal Upper, Boss Side Pully, Kit Blade |
| Tension Pulley | 14-15 | Belt Poly, Arm Tension, Bushing Tension, Collar Tension, Pulley Tension, Seal Bearing, Spring Tension |
| Mower Deck | 16-17 | Assy Mower Deck, Label Caution, Label Danger, Cover Left, Plate Rubber, Bolt Short Squ.Neck |
| Front Gauge Wheel | 18-19 | Assy Gauge Wheel, Gauge Wheel, Bolt Shoulder, Pin Gauge Wheel, Roller Anti-Scalp, Bolt Gauge, Nut Lock |
| Rear Wheel | 20-21 | Assy Gauge Wheel, Gauge Wheel, Bolt Shoulder, Pin Gauge Wheel, Pin Clevis, Ring Snap |
| Discharge Cover | 22-23 | Cover Discharge, Pin Discharge, Spring Discharge, Pin Spring, Bolt, Washer Spring |
| Mower Linkage | 24-25 | Lever Link, Pin Front, Spring Pin Front, Pin Spring, Link Front, Washer Spring Lock |
| Mower Label [English] | 26-27 | Label Caution, Label Danger 1, Label Danger 2, Plate Name, Label Anti-Scalp |
| Mower Label [French] | 28-29 | Label Caution CA, Label Danger 1 CA, Label Danger 2 CA, Plate Name, Label Anti-Scalp |
| Accessories and Service Parts | 30-31 | Operator's Manual, Operator's Manual CA |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| SHIM thickness | 0.2mm | p. 9 |
| KIT GEAR BEVEL Teeth Count | 16-19T | p. 9 |
| ASSY JOINT UNIVERSAL Weight | 3.5 kgf | p. 5 |
| CASE BEVEL GEAR Weight | 3.82 kgf | p. 7 |
| PULLEY CENTER Weight | 1.78 kgf | p. 9 |
| NIPPLE GREASE Weight | 0.01 kgf | p. 5 |
| O RING Weight | 0.002 kgf | p. 7 |
| CIR CLIP INTERNAL Weight | 0.009 kgf | p. 9 |
Kubota RCK54-15BX Common Problems This Manual Covers
Kubota RCK54-15BX center blade holder bearing kit part number, unsure which items are in the kit p. 10
Open the Pulley Holder/Blade exploded view on page 10. Identify the Bearing Ball, Oil Seal Upper, and Boss Spline as separate line items in the parts list. Kit Blade bundles the consumable components; the Holder Pulley Center is listed as a standalone item. Cross-reference all part numbers before ordering to avoid duplicates.
Manual Section: Pulley Holder/BladeUniversal joint assembly parts order, confused between Yoke Quick and Yoke PTO fitment p. 4
Check the Universal Joint parts diagram on page 4. The Yoke Quick and Yoke PTO carry separate part numbers; verify which end mates to the tractor PTO output versus the deck input shaft. The complete Assy Joint Universal listed on page 5 weighs 3.5 kgf; use that figure to confirm you are ordering the full assembly, not individual sub-components.
Manual Section: Universal JointBevel gear case rebuild parts list unclear, need O-ring, shim adjust, and breather plug numbers p. 6
Pull up the Bevel Gear Case exploded view on page 6. The O-Ring (0.002 kgf), Shim Adjust, and Plug Breather each carry separate part numbers as individual line items. The complete Case Bevel Gear housing on page 7 weighs 3.82 kgf; the full case and the individual seals are distinct catalog entries. Verify Stay Case Lh is included if the mounting bracket is also worn.
Manual Section: Bevel Gear CaseInput shaft pinion and bevel gear kit part numbers, shim thickness options not clear from listing p. 8
Turn to the Input Shaft/Center Pulley parts list on page 8. Shaft Pinion and Kit Gear Bevel (16-19T) are listed separately from the three shim options: 0.1mm, 0.2mm, and 0.3mm on page 9. Order all three shim thicknesses unless existing clearance is already documented, then match the Bearing Ball and Oil Seal part numbers to the same diagram group before submitting your order.
Manual Section: Input Shaft/Center PulleyFrequently Asked Questions
What are the replacement specifications for Mower blades?
Two part numbers cover the mower blades: K5351-99020 and K5351-34330. The PULLEY HOLDER/BLADE assembly takes one K5351-99020 and three K5351-34330. On the SIDE PULLEY/BLADE assembly, the count rises to two K5351-99020 and three K5351-34330.
What are the replacement specifications for Deck belt?
The deck belt carries part number K5351-34710, listed as "BELT POLY". The manual specifies a quantity of one for this part in the TENSION PULLEY assembly.
What do I get after purchasing this Kubota RCK54-15BX manual?
A 31-page searchable PDF, ready to download the moment you buy. It opens on any device, so you can pull it up on your phone right under the hood. No shipping, no waiting.
Is this Kubota RCK54-15BX Parts Catalog printable?
Yes. Print as many copies as you want; there are no restrictions. Plenty of mechanics print just the section they need and carry it to the shop floor.
Document Quality
This document is a hybrid PDF, featuring native digital text for all written content and parts lists, which means you can search and copy text throughout. The text quality is crisp and consistently easy to read on every page. All diagrams and illustrations are raster images, likely scanned drawings, so while labels are readable, they will show slight pixelation when magnified. The pages are clean with no scan artifacts, stains, marks, or skewed content present. There are no notable blank or filler pages in this document.
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