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Proveedor: European Autospares Trading LLC
Porsche Junta Tórica de Sellado del Motor 99970737140 | OEM Genuino
Dhs. 40.00
Proveedor: European Autospares Trading LLC
Porsche Junta Tórica de Sellado del Motor 99970737140 | OEM Genuino
Dhs. 40.00
Fitment Details
xPorsche O-Ring 99970737140 Fitment
| Porsche Model | Application |
|---|---|
| Porsche 911 (996), 1998–2005 | Expansion vessel / expansion vessel plug / bleeder valve |
| Porsche 911 (997), 2005–2008 | Expansion vessel / expansion vessel plug / bleeder valve |
| Porsche Boxster (986), 1997–2004 | Expansion vessel / expansion vessel plug / bleeder valve |
| Porsche Boxster (987), 2005–2008 | Expansion vessel / expansion vessel plug / bleeder valve |
| Porsche Cayman (987C), 2006–2008 | Expansion vessel / expansion vessel plug / bleeder valve |
Technician's Advisory: A 17 x 4 mm ring fits more than one joint, so always confirm the exact position with your VIN before ordering. Fit the new genuine 99970737140 into a clean, residue-free groove, seat it evenly, and never use sealant or petroleum grease. After the job, bleed the cooling system correctly and recheck the coolant level. Applications sourced from the Eurospares part record and Design911 catalogue listing for 99970737140 (retrieved 2026-10-13).
FAQs
xFrequently Asked Questions
It is a 17 x 4 mm sealing O-ring for the engine cooling circuit — typically the expansion vessel, expansion vessel plug, or bleeder valve. It compresses between two mating surfaces to keep coolant in and air out. Like every rubber seal in the cooling system, it hardens and shrinks with age and heat, eventually letting coolant weep past.
It appears in the cooling system parts diagrams for the Porsche 996 (1998–2005), 997 (2005–2008), 986 Boxster (1997–2004), 987 Boxster (2005–2008), and 987C Cayman (2006–2008), at the expansion vessel, plug, or bleeder valve. Because cooling hardware can vary by model year, send us your VIN and we will confirm the exact position for your car.
Look for coolant weeping or crusty pink residue around the expansion vessel or bleeder valve, a slow drop in the coolant level, the low-coolant warning, or the smell of hot coolant after driving. The golden rule: whenever the vessel or valve is opened for service, fit a new genuine O-ring — old seals almost never reseal properly once disturbed.
No. A used O-ring has taken a permanent set from years of compression and heat, so it will not seal reliably a second time. Sealant is the wrong fix — it can block small coolant passages and makes future service messy. The genuine 99970737140 is an inexpensive part, and fitting a new one is the only correct repair.
This is a brand-new genuine Porsche part in factory packaging, covered against manufacturing defects under the genuine parts warranty, and your statutory consumer rights apply in the UAE. If it arrives damaged or incorrect due to our error, we will replace or refund it. Once fitted, a seal cannot be resold, so we verify your VIN before dispatch.
Found It Cheaper.?
xShipping & 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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