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Kubota RCK60-24B / 27B / 30B Gearbox Repair Options

Complete assembly · Gears · Bearing & seal service

Compare Flip Manufacturing aftermarket gearbox repair options for listed Kubota RCK60-24B, RCK60-27B and RCK60-30B mower-deck applications. Start with the full model and serial number on the mower deck’s tag, then confirm the original gearbox and service-part references. A tractor model or 60-inch deck width alone does not identify the correct parts.

Read the version checks below. The complete gearbox has a specific RCK60-27B(A) serial restriction. The bearing/seal kit has a bearing-version exclusion and hardware differences. Sharing a deck family does not make every repair option interchangeable.

Compare the three repair options

Gearbox assembly · FLIP 702975

One aftermarket gearbox assembly referencing K5763-33100, for the listed RCK60-24B / RCK60-27B / RCK60-30B applications.

RCK60-27B(A): deck serial 30685 or later. For the other listed decks, compare the original gearbox number and mounting details. Use the exact deck diagram and product listing to confirm the configuration.

Mower-deck bevel gear set · FLIP 703439

One replacement bevel gear set referencing K5763-33320. This is a gear set, rather than a complete gearbox or bearing/seal kit.

Match the full deck model, serial-specific diagram, original gears and gearbox version. Its wider application list includes other RCK60 and RCK72 families; that does not expand the application of the complete gearbox above.

Selective bearing & seal service kit · FLIP 704344

A selection of listed bearings, seals, shims and service hardware for the documented gearbox applications, including the K5763-33100 serviced-assembly reference. It is not a complete gearbox and does not supply every part needed for an overhaul.

Bearing check: supplied 08101-06232 is listed as a service replacement for 70712-33550; it does not replace K5687-33550.

Hardware check: 63313-32270 varies by gearbox version. Compare your original hardware with the kit list, retain suitable originals or obtain the exact required parts separately. Select shims to the service manual; supplied alternatives and extras are not all installed together.

Choose from the actual repair need

A complete assembly, replacement gears and a selective service kit supply different things. Identify damaged and reusable parts using the equipment service information or a qualified repair technician, then compare the full contents of each listing. Do not order all three on the assumption that they form a universally compatible package.

Details to compare before ordering

  1. Read the full deck model, suffix and serial number from the deck tag.
  2. Confirm the gearbox and component numbers in that deck’s parts diagram.
  3. For an assembly, compare mounts, shafts and connections with the original.
  4. For internal service parts, confirm the original bearing version, hardware and required shim setup.

Text 903-320-4519 with the deck tag, original gearbox reference, FLIP SKU and photos of the parts you are comparing. Follow the exact deck service manual for lubricant, fill level and assembly settings.

Read the general gearbox repair-options guide · How to check fitment

Independent Flip Manufacturing aftermarket products. Kubota names and OEM numbers identify applications, replacement parts or assemblies serviced, as labeled. Check each product page for current price, availability and complete supplied-parts lists.