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OE Quality
60-Day Returns
GenuinePart #: 99970736441
Genuine 99970736441 Engine Crankcase Breather O-Ring
⚙️ 5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$21.21Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Porsche, 911
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Engine Crankcase Breather O-Ring options
Genuine 99970736441 Engine Crankcase Breather O-Ring
This part fits 5 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Porsche | 911 | Carrera | N/A | At Breather Hose Connector on Engine |
| 2005 | Porsche | 911 | Carrera 4S | N/A | At Breather Hose Connector on Engine |
| 2004 | Porsche | 911 | Carrera | N/A | At Breather Hose Connector on Engine |
| 2004 | Porsche | 911 | Carrera 4 | N/A | At Breather Hose Connector on Engine |
| 2004 | Porsche | 911 | Carrera 4S | N/A | At Breather Hose Connector on Engine |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.