Description
xProduct Overview
The Genuine Porsche Engine Cylinder Head Nut Fastener 99610438271 is the original cylinder head nut for its specified engines, made to Porsche’s exact factory specification. The head nuts work with the cylinder head studs to clamp the heads to the crankcase; a corroded or distorted nut cannot achieve or hold its specified torque accurately. This genuine nut restores the factory clamping the head sealing depends on.
Part Numbers & Reference Codes
OE part number: 99610438271. Always order and verify by this Porsche part number to ensure you receive the correct original component for your engine.
Vehicle Compatibility & Fitment
Application differs by Porsche model, engine variant, and production split. This is a genuine Porsche OE component; confirm it matches your exact vehicle by sharing your VIN with our parts team before ordering, and we will verify fitment against the factory catalogue.
Key Features & Benefits
- Exact OE specification: thread and bearing face made to Porsche’s original specification for accurate, repeatable torque.
- Works with the factory studs: designed to pair with the specified cylinder head studs for correct, even head clamping.
- Protects head sealing: accurate clamping across every position guards against combustion, coolant, and oil sealing failures.
- Renew, do not reuse: head nuts are renewal items during head work; corrosion and distortion are not always visible at a glance.
Technical Specifications
| OE Part Number | 99610438271 |
| Brand | Porsche |
| Product Type | Engine Cylinder Head Nut Fastener |
| Condition | New, Genuine OEM |
| Category | Engine Parts |
Installation Position & Fitment Notes
This cylinder head nut installs on its cylinder head stud, over its washer, and is tightened strictly to the Porsche workshop procedure for the exact engine, in the specified sequence. Never reuse a nut that is corroded or distorted. Fitment should be confirmed by VIN before ordering.
Product Brand, Type & Condition
Brand: Porsche. Type: engine cylinder head nut fastener. Condition: brand-new genuine OEM part, supplied exactly as the factory produces it.
What’s Included in the Box
This listing includes one (1) Genuine Porsche Engine Cylinder Head Nut Fastener 99610438271. Nuts are sold individually, check how many positions your engine requires, and renew the matching studs and washers disturbed during the job at the same time.
Installation Requirements
Professional installation by a qualified Porsche technician is recommended. Work to the Porsche workshop procedure for your exact engine, use the specified tightening sequence and torque where fasteners are involved, and confirm fitment by VIN before ordering.
Warranty & Returns
This brand-new genuine part is covered against manufacturing defects, and your statutory consumer rights apply in the UAE. If the part arrives damaged or is incorrect due to our error, we will replace or refund it.
Confirm Fitment & Order
Ready to order? Order the Genuine Porsche Engine Cylinder Head Nut Fastener 99610438271 from European Autospares Trading LLC, order from European Auto Spares with fast delivery across the UAE. Not sure it fits? Contact us with your VIN and our parts team will confirm before you buy. You may also like our Genuine Porsche Engine Cylinder Head Stud Bolt 99610117270Genuine Porsche Pan Head Screw Fastener 90006705103or browse all genuine Porsche spare parts.
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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