AKG 2040Z05020 - Swivel Joint for K141, K121, K142

AKG 2040Z05020 - Swivel joint for K141 MKII, K121 Studio and K142 HD headphones

The AKG 2040Z05020 is the original swivel joint that connects each earcup to the headband, allowing for the smooth swivel and position adjustment typical of AKG professional models. Identified in service manuals as a Swivel joint ( Gelenkstück ), this OEM part mounts on each side of the headphone cup , so one headphone requires 2 units (one per earcup). Its compatibility is documented for the K141 MKII , K121 Studio and K142 HD ; additionally, it is used in the same position in the K240 MKII architecture, facilitating maintenance of mixed fleets in studio, broadcast and rental.

Replacing a broken, fatigued, or loose joint restores the headset's original travel and stability , reduces creaking, and prevents unwanted stress on other parts of the headset. As an official AKG replacement, it maintains the tolerances and exact fit with the rest of the assembly (gimbal clamp, sliders, and housing ring) without the need for adjustments.

Main features

• Original AKG part (ref. 2040Z05020), with factory fit and tolerances.
• Verified compatibility : K141 MKII, K121 Studio and K142 HD; also present on K240 MKII.
• Quantity per earpiece : 2 units (one for each cup).
• Function : Swivel joint that connects the cup and harness, ensuring controlled and stable movement.
• Direct integration with Cardan clamp 2040Z04010 and the rest of the harness components.

User benefits

• Restored ergonomics : regains comfortable and predictable cup positioning.
• Less mechanical noise and clearance by replacing the part responsible for rotation.
• Easy maintenance : clear and common reference across multiple AKG models, ideal for service departments and rental parks.

Use cases

• Replacement after breakage due to falls or twisting at the pivot point of the cup.
• Preventive maintenance on helmets with intensive use (studio, broadcast, classrooms).
• Unification of spare parts in fleets that combine K121 Studio, K141 MKII, K142 HD and K240 MKII.

Frequently Asked Questions

How many joints does a headset need? Two: one for each cup.

Is the cardan clamp included? No. The corresponding center clamp is 2040Z04010 (Cardan clamp) , a separate part.

Does it work with other AKG models? In addition to the K121 Studio, K141 MKII, and K142 HD, the same part number is used on the K240 MKII, according to the service manuals.

Description for projects

Genuine AKG swivel joint for headphones: reference 2040Z05020 ; exploded view position 17 ; quantity per headphone: 2 ; compatible with K121 Studio , K141 MKII , K142 HD and K240 MKII ; integrates the pivot point between the earcup and headband; OEM part for professional maintenance.