Bosch Clutch Slave Cylinder JB10103 - 350Z DE 03-06
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Bosch Clutch Slave Cylinder – Nissan 350Z DE
JB10103 · 2003 to 2006
When the internal seals of the clutch slave cylinder fail on the 350Z DE, the clutch pedal loses pressure, gear changes become difficult, and in a full failure the pedal sinks to the floor with no resistance. The Bosch JB10103 is a direct OEM replacement external clutch slave cylinder for the Nissan 350Z DE manual transmission, restoring full hydraulic pressure and firm, consistent clutch operation backed by one of the world's most trusted names in automotive engineering.
Product specifications
| Specification | Detail |
|---|---|
| Part number | JB10103 |
| Brand | Bosch |
| Type | Clutch slave cylinder, external |
| Transmission | Manual (VQ35DE) |
| Sold as | Each |
Why Bosch
- Direct OEM replacement with bolt-on fitment and no modifications required
- Manufactured to OEM specifications for full hydraulic pressure and firm pedal feel
- Restores consistent clutch engagement and eliminates pedal fade or sink
- Produced by one of the world's largest OEM suppliers of clutch hydraulic components
- Trusted by vehicle manufacturers and workshops worldwide
Installation
Difficulty
Trade recommended
Tools required
Workshop tools
Fitment
Nissan 350Z Z33 DE · 2003 to 2006 (VQ35DE, manual transmission only)
This is an external slave cylinder and does not suit the 2007 to 2008 350Z HR which uses a concentric slave cylinder. Please confirm fitment against your vehicle before ordering. Contact us if you're unsure and we're happy to help.
Replace the clutch master cylinder at the same time for a complete hydraulic clutch system refresh. One failing is often a sign the other is close behind — replacing both together ensures even hydraulic performance and avoids a return visit to the workshop.

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$165.00
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