Title:
JOINT,BLADE BOSS (KU-7653934392)
Description:
The Kubota 7653934392 Blade Boss Joint plays a critical role in mower performance by securely connecting the mower blade to the spindle assembly while ensuring precise alignment during rotation. Engineered to Kubota’s OEM standards, this component transfers rotational force efficiently, thereby maintaining stable blade movement and consistent cutting performance.
Moreover, Kubota manufactures this joint using high-strength, wear-resistant metal, which allows it to withstand continuous rotational stress, vibration, and impact from demanding mowing conditions. As a result, it maintains structural integrity over time, reducing the risk of play or misalignment within the blade system.
In addition, the precision-machined interface ensures accurate blade positioning, which improves balance and reduces vibration. At the same time, it protects the spindle shaft and mounting components, extending the lifespan of the entire cutting assembly.
Furthermore, the blade boss joint integrates seamlessly with Kubota mower systems, allowing quick installation and secure engagement without modification. Consequently, it supports safe operation, smooth power transfer, and reliable cutting efficiency.
Ultimately, the KU-7653934392 blade boss joint provides a durable and essential connection point, making it vital for maintaining optimal mower deck performance.
Model Fitment:
RC Series
- RC54-24B
- RC54-29B
- RC54-71B
- RC54-F19
- RC54-FZ21
- RC60-21B
- RC60-21Z
- RC60-24B
- RC60-27B
- RC60-28Z
- RC60-29B
- RC60-30B
- RC60-7H
- RC60-F19
- RC60-F30
- RC60-FZ21
- RC60-G20
- RC72-27B
- RC72-30B
- RC72-30BC
- RC72-38
- RC72-40LX
RCK Series
- RCK54-18Z
- RCK54-24B
- RCK54-29B
- RCK54P-321Z
- RCK60-21Z
- RCK60-24B
- RCK60-28Z
- RCK60-F30
(Also fits many additional RC/RCK mower deck configurations—over 100 applications in total.)
Part Details:
- Part Name: JOINT, BLADE BOSS
- Part Number: KU-7653934392 / 76539-34392
- Category: Mower Deck / Blade Drive Components
- Manufacturer: Kubota (OEM Genuine Part)
- Function: Connects blade boss assembly to ensure stable blade rotation
- Material: High-strength OEM-grade metal construction
- Weight: Approx. 110 g / 0.13 lbs
- Alternate Part Numbers:
- 76539-3439-2
- 7653934390
- K565134392 (supersession reference)
- Application: Lawn & turf mower decks (residential and commercial use)
- Installation: Direct OEM replacement for quick and straightforward fitting
