Every assembly in your Kubota RC54-G20 mower is laid out across these 34 pages: universal joint, gear box, blade spindles, front and rear wheels, discharge cover, front and rear linkage, plus the mower assist spring. Each section pairs multi-view exploded diagrams with numbered part lists, showing quantities and interchangeability codes. Cross-references flag which components carry over from the RC44-G17 and RC48-G20, so you confirm fit before ordering. Your replacement multi-belt runs 110 inches; gear shims measure 0.2MM. Call the wrong number once and you've paid for this catalog twice. Bookmarked by assembly and keyword-searchable on any device, this Kubota RC54-G20 parts catalog PDF pulls up at the parts counter so you get it right the first time.
What's Inside This Kubota RC54-G20 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Universal Joint | 4-5 | - |
| Gear Box/Center Pulley | 6-8 | Diagram 1, Diagram 2 |
| Pulley Holder/Blade | 9-11 | Diagram 1, Diagram 2 |
| Side Pulley/Blade | 12-13 | - |
| Tension Pulley | 14-15 | Rc44-G17, Rc48-G20 |
| Mower Deck | 16-17 | Rc60 |
| Front Wheel | 18-20 | Diagram 1, Diagram 2 |
| Rear Wheel | 21-23 | Diagram 1, Diagram 2 |
| Discharge Cover | 24-25 | - |
| Rear Linkage | 26-28 | Diagram 1, Diagram 2 |
| Front Linkage | 29-31 | Diagram 1, Diagram 2 |
| Mower Assist Spring | 32-33 | - |
| Accessories and Service Parts | 34 | Manual Instruction Part |
Every system also includes interchangeability symbols and a part list table.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| BELT MULTI length | 110IN | p. 15 |
| ASSY JOINT UNIVERSAL weight | 2.5 kgf | p. 5 |
| NIPPLE GREASE quantity | 2 | p. 5 |
| ASSY CASE BEVEL GEAR weight (S.No. <=11691) | 7.76 kgf | p. 8 |
| SHIM thickness | 0.2MM | p. 8 |
| HOLDER PULLEY weight (S.No. <=22057) | 2.57 kgf | p. 11 |
| BLADE weight | 1.45 kgf | p. 11 |
| MOWER DECK weight (S.No. >=20001) | 81 kgf | p. 17 |
| ASSY ROLL.ANTI-SCALP weight (S.No. >=20001) | 0.28 kgf | p. 20 |
| STAY REAR WHEEL quantity | 2 | p. 23 |
| COVER CHUTE weight (S.No. >=30001) | 4.5 kgf | p. 25 |
| LINK FRONT weight (S.No. >=36629) | 2.54 kgf | p. 31 |
Kubota RC54-G20 Common Problems This Manual Covers
Kubota RC54-G20 driveline won't spin, need universal joint assembly part number p. 4
Open the Universal Joint drivetrain parts diagram on page 4. Verify your serial number range before ordering: the assembly weighs 2.5 kgf and includes 2 grease nipples (page 5). Cross-reference the exploded view with the parts list to confirm the correct ASSY JOINT UNIVERSAL part number, then check sub-component listings if replacing only individual yokes or bearing cups.
Manual Section: Universal JointFront deck link cracked or missing, replacement part number hard to source p. 29
Pull the Front Linkage exploded view starting on page 29. Verify your serial number first: units S.No. >=36629 use LINK FRONT at 2.54 kgf (page 31). Some front link hardware may be discontinued. Check pages 29-31 for all sub-assembly part numbers and confirm with your dealer whether aftermarket alternatives appear under Accessories on page 34.
Manual Section: Front LinkageSpindle assembly seized or damaged, need correct pulley holder part number p. 9
Check the Pulley Holder/Blade exploded view on page 9. Serial number is critical: HOLDER PULLEY for S.No. <=22057 weighs 2.57 kgf (page 11). If the damage traces back to the center drive, compare against the Gear Box/Center Pulley diagrams on pages 6-8. Pull exact part numbers from the correct diagram before ordering to avoid receiving the wrong sub-assembly.
Manual Section: Pulley Holder/BladeBelt slipping or burning through fast, need correct replacement belt part number p. 14
Start at the Tension Pulley section on page 14. The spec'd belt is BELT MULTI at 110 IN (page 15). Confirm this applies to your configuration, as pages 14-15 also cover Rc44-G17 and Rc48-G20 variants. If belts keep failing, pull idler and tensioner part numbers from the same pages to check whether worn pulley hardware is the root cause.
Manual Section: Tension PulleyDeck scalping or cutting unevenly, can't identify the right anti-scalp roller part numbers p. 18
Go to the Front Wheel section on page 18. For S.No. >=20001, ASSY ROLL.ANTI-SCALP weighs 0.28 kgf per roller (page 20). Check the exploded view for mounting bracket and pin part numbers alongside the roller assembly. If deck height linkage components are also worn, cross-reference Rear Linkage on pages 26-28 for hanger pins, brackets, and related hardware.
Manual Section: Front WheelGearbox center pulley cracked or stripped, need bevel gear case assembly part number p. 6
Turn to the Gear Box/Center Pulley section on page 6, which covers this assembly across two diagrams through page 8. Serial number is critical: ASSY CASE BEVEL GEAR for S.No. <=11691 weighs 7.76 kgf (page 8), and later units use a different part number. The 0.2MM shim on page 8 is also a discrete cataloged part: confirm whether you need the full case or shim kit only.
Manual Section: Gear Box/Center PulleyFrequently Asked Questions
What are the replacement specifications for universal joint / driveline parts?
For the universal joint assembly, the part number is 76505-32030, weighing 2.5 kgf (5.5 lb). Key components include the YOKE QUICK (Part No. 76508-31150, 0.6 kgf / 1.32 lb) and SHAFT JOINT (Part No. 76505-31140, 0.63 kgf / 1.386 lb). The NIPPLE GREASE (Part No. 76508-31210) and RING SNAP (Part No. 76508-32120) are listed too, each with its own weight.
What are the replacement specifications for spindle bearings / spindle assemblies?
The pulley holder/blade assembly lists the HOLDER PULLEY (Part No. 76539-34110) at 2.57 kgf (5.654 lb), with its BEARING BALL (Part No. 08101-06205) at 0.14 kgf (0.308 lb). On the side pulley/blade side, the HOLDER PULLEY LH (Part No. 76539-34510) weighs 1.77 kgf (3.894 lb), and the same BEARING BALL (Part No. 08101-06205) again runs 0.14 kgf (0.308 lb).
How quickly can I access this Kubota RC54-G20 manual after buying?
This is a 34-page searchable PDF ready for immediate download. It works on any device, so you can pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print specific sections of this Kubota RC54-G20 Parts Catalog?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Document Quality
This document is a scanned PDF with an OCR layer, meaning you can search and copy the full text content. The text throughout is crisp and consistently easy to read, with no blurriness or fading observed. Diagrams and illustrations are clear line drawings, and all labels within them are readable. Pages are clean, well-aligned, and free from scan artifacts or other marks. There are no notable blank or filler pages; all pages contain either diagrams or parts lists.
Reviews
There are no reviews yet.