If you own a Porsche 996 (1999–2004 911 Carrera, Carrera 4, or Turbo), you may eventually need part number 99611024703. This is the crankshaft position sensor (CPS), a critical engine management component. When it fails, your car may crank but not start, stall unexpectedly, or trigger a check engine light. Ordering the correct part online is straightforward if you know where to look and what to avoid. This guide walks you through everything from identifying the part to selecting a reliable vendor.
What Is Porsche Part Number 99611024703?
The crankshaft position sensor (CPS) monitors the rotational speed and position of the crankshaft. The engine control unit (ECU) uses this data to time fuel injection and ignition. On the Porsche 996, the CPS is mounted near the flywheel or flexplate. Part 99611024703 is the genuine OEM sensor for M96 engines. Failing to replace a faulty CPS can leave you stranded, so sourcing a quality replacement is essential.
Symptoms of a Failing Crankshaft Position Sensor
- Engine cranks but does not start
- Intermittent stalling, especially in hot weather
- Check engine light with codes P0335 or P0336
- Rough idle or hesitation under load
- No spark or fuel injector pulse
If you experience any of these, start by diagnosing the CPS before throwing parts at the problem.
Where to Buy Porsche Part 99611024703 Online
When searching for "online porsche parts 99611024703," you want a vendor that specializes in Porsche components. Avoid general auto parts sellers that may list incorrect parts or low-quality aftermarket units. Here are the best places to buy:
Authorized Porsche Dealership Parts Departments
Buying from a Porsche dealer guarantees an authentic part. Many dealerships now sell online with competitive pricing. Look for dealers such as Suncoast Porsche Parts, Porsche of Tampa Bay, or Porsche of Fremont. These often offer discounts over MSRP and fast shipping. Check that the part number matches 99611024703 exactly.
Specialized Porsche Parts Retailers
Independent online retailers like Pelican Parts, FCP Euro, and ECS Tuning carry genuine OEM and premium aftermarket options. They often provide detailed photos, fitment notes, and customer reviews. FCP Euro even offers a lifetime replacement guarantee on many parts, which adds peace of mind. For Porsche-only shops, consider 9Apart, AutohausAZ, or Design911 (though the latter ships from the UK, so factor in delivery time).
Aftermarket vs. Genuine OEM
You may see aftermarket CPS sensors for the 996 at lower prices. Brands like Standard Motor Products, Hengst, and Febi Bilstein produce acceptable alternatives. However, the crankshaft position sensor is a sensitive component—poor quality aftermarket units can cause intermittent failures. If you plan to keep the car long-term, stick with genuine Porsche (identified by the factory box and part number) or trusted OEM suppliers. The price difference is usually around $20–$40, which is modest compared to the cost of being stranded.
How to Verify You Are Getting the Right Part
- Double-check the part number: 99611024703 is the CPS for most 996 models with the M96 engine. If you have a 996 Turbo (Mezger engine), it may use a different sensor—verify with your VIN.
- Look for the OEM logo: Genuine Porsche parts carry the Porsche crest on the box and often a Bosch or supplier stamp on the sensor itself.
- Check the connector shape: The 99611024703 sensor has a specific two-pin connector. Compare with photos of your old sensor.
- Use your VIN: Most online parts retailers allow you to enter your VIN for guaranteed fitment.
Price Range for 99611024703
- Genuine Porsche sensor: $80–$120
- OEM-quality aftermarket (e.g., Bosch, Febi): $50–$80
- Budget aftermarket: $25–$45
Prices vary by vendor, current discounts, and shipping. Buying genuine from a dealer often runs $100 shipped. Budget options may work but carry higher risk of premature failure.
Tips for a Smooth Purchase
- Check return policy: Even new parts can be defective. Ensure the seller accepts returns for exchange or refund.
- Watch for counterfeits: Avoid sellers with suspiciously low prices, generic packaging, or no brand marking. Stick to authorized dealers or well-known specialists.
- Factor in shipping speed: If your car is down, expedited shipping may be worth the extra cost. Some retailers offer free ground shipping on orders over $50.
- Confirm warranty: Genuine Porsche parts typically come with a two-year warranty through any dealer. Aftermarket warranties vary.
- Order the gasket/o-ring separately: The 99611024703 sensor often does not include a new O-ring. You may need a small O-ring for the bolt or sensor housing; check your service manual.
Final Recommendation
For most Porsche 996 owners, the best balance of quality and value is to buy the genuine OEM sensor (99611024703) from an online Porsche dealership parts department like Suncoast Porsche Parts or a trusted specialist like FCP Euro. The extra cost over aftermarket is minimal, and you avoid the risk of a faulty sensor causing further issues. If you need the part urgently, confirm stock before ordering. Always verify fitment using your VIN, and keep the old sensor for comparison. With the right part in hand, replacing the crankshaft position sensor is a straightforward job that can be done in an hour with basic tools—and your 996 will be back on the road reliably.