Genuine Nissan Rear Main Seal and Retainer - 350Z VQ35DE - 12296-31U20
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Description
Genuine Nissan rear main crankshaft oil seal and retainer assembly for VQ35DE-powered 350Z models. It seals the rear of the crankshaft where the engine meets the transmission.
The assembly includes the rear main oil seal installed in its retaining plate, making it suitable for replacement during transmission, clutch, flywheel or engine repairs.
Vehicle Fitment
- 2003–2006: Nissan 350Z / Fairlady Z with VQ35DE, including RevUp
- Does not suit 2007–2008 VQ35HR 350Z models
- Does not suit Nissan 370Z models
Product Details
| Brand | Genuine Nissan |
|---|---|
| Part Number | 12296-31U20 |
| Product | Rear main crankshaft oil seal and retainer assembly |
| Position | Rear of engine crankshaft |
| Engine | VQ35DE |
| Included | Retainer plate with rear main oil seal |
| Supersedes | 12296-31U00, 12296-31U01, 12296-31U10, 12296-31U11 and 12296-31U15 |
| Condition | New |
Why Choose Genuine Nissan?
- Complete Nissan replacement assembly with the rear main oil seal and retaining plate
- Manufactured to the original dimensions for correct alignment around the crankshaft
- Direct replacement for the superseded Nissan retainer assemblies listed above
Please Check Before Ordering
This assembly is specifically listed for VQ35DE-powered 350Z models. Replacing the rear main seal normally requires removal of the transmission and flywheel or flexplate.
Not sure if this part suits your Z? Contact us with your model, year and engine and we can help confirm fitment.

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$79.00
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