BUSH (KU-RB41966330)

Description:

Kubota RB419-66330 Bush

Model Fitment:

Kubota Mini Excavators

• U20-3 (Serial Number ≥ 60001)

• U20-3 Alpha (Serial Number ≥ 20001)

• U25-3 (Serial Number ≥ 60001)

• U25-3 Alpha (Serial Number 20001–59999)

Part Details:

Kubota RB419-66330 Bush Kubota RB419-66330 Bush

The Kubota RB419-66330 Bush is an OEM replacement bushing designed for the swing bracket assembly found on select Kubota U-Series mini excavators. This precision-machined bushing supports the swing bracket pin, ensuring smooth and stable swing function of the upper structure. By reducing friction and distributing load evenly, the RB419-66330 maintains tight structural alignment and prolongs the life of the swing bracket and pin components.

Manufactured to Kubota’s strict OEM specifications, this bushing provides exact fitment, proper tolerances, and long-lasting durability under heavy excavation conditions. It is built from hardened, high-strength steel to withstand high side-loads, vibration, and continuous pivot movement during daily operation.