Sony BU-30 CD drive sled motor gear (M102)

The gear is part of Sony CD Drive base unit BU-30 assembly. This drive is used in CD and VCD players. Base unit is marked BU-30BBD61M, A-4735-885-A. It is compatible with Aiwa BU-30 assembly.

Replacement part was created using a semi-professional 3D printer using durable Nylon material. The gear was tested for correct operation.

You can find the gear here in schematics:

Sony A-4735-885-A BU-30B Assembly


Gear is compatible with following Sony CD Players:
HCD-M333, MXD-D400, RCD-W2000ES, RCD-W10, RCD-W100, RCD-W222ES, RCD-W500C, RCD-W50C
However, it might work also with other devices – just check your service manual.

The gear is available in e-shop.
(gear only, without motor)

X33635011

Sony CD Player 4-968-865-01 gear C

The gear is part of CD loader assembly in Sony CDP-X CD players.

CD Mechanism Type: CDM32EB-12C, CDM32EN-12C, CDM32HB-12H, CDM32HN-12H and compatible
Base Unit Type: BU-12C, BU-12H and compatible
Optical Pick-up Type: KSS-273 (KSS-273A, KSS-273B/J1N)

Sony CD Player 4-968-866-01 replacement gear

Faulty gear can be replaced with 3D printed one. Replacement gear was fully tested for correct operation.

original 4-968-865-01 gear cracked

Gear position in the schematic:


Gear is compatible with following devices:
CDP-XA7, CDP-XA7ES, CDP-XA555ES, CDP-XA50ES, CDP-X5000.
However, it might work also with other devices – just check your service manual.

Available for purchase in e-shop.

3D Lab CD12 Loading Gear

The gear is part of CD loader assembly in high-end CD player 3D Lab CD12. It uses Sony CD Drive (KSM2101ADM) so it can be compatible with other CD players too.

Faulty gear can be replaced with 3D printed one. Replacement gear was fully tested for correct operation.


Gear is compatible with 3D Lab CD12 Player.
However, it might work also with other devices based on Sony CD drive – just check your service manual.

Available for purchase in e-shop.

Sony CD Changer 4-957-284-01 Gear

The gear was used in Sony CD changers produced in the mid to late 1990s. It is a part of the CD tray and is responsible for the CD tray rotating.

Faulty gear can be replaced with 3D printed one.

Video showing replacement gear in operation.


Gear is compatible with following devices:
CDP-C23, CDP-C235, CDP-C245, CDP-C265, CDP-C345, CDP-C435, CDP-C445, CDP-C545, CDP-C661, CDP-C745, CDP-CA9ES, CDP-CE335, CDP-CE415, CDP-C250Z, CDP-CA8ES.
However, it might work also with other devices – just check your service manual.

Available for purchase in e-shop.

Sony X-3356-638-1 (Reel R) Assy Gear

Gear attached to the motor – part of Sony X-3356-638-1 Motor (Reel R) Assembly. Gear is also compatible with Sony X-3371-429-1 that is actualy a substitute part.

Replacement part was created using a semi-professional 3D printer. Slighty flexible material guarantees silent operation. The part was fully tested.

X-3356-638-1 Motor (Reel R) Assy position in drive

The part is compatible with following devices:
TCKA2E, TCKA2ES, TCKA2ESU, TCK620, TCK850, TCK850ES, TCRX79ES, TCWR901ES, TCWR99ES.

It also might be part of other device – just check corresponding service manual.

Available in e-shop.