Description
Part Description
This OEM alternator was removed from a 2010 Porsche Cayenne equipped with the 3.6L engine and features 190 amp output capacity. The part has been professionally inspected by our technicians and is currently on the shelf ready for immediate shipment. This genuine Porsche component ensures proper electrical system operation and charging performance.
The alternator is a critical component of your Porsche’s charging system, converting mechanical energy from the engine into electrical power to charge the battery and run electrical systems. Common reasons for alternator replacement include bearing failure, worn brushes, damaged slip rings, or electrical component failure that results in insufficient charging output or complete charging system failure.
At 603 Auto Salvage, we maintain an inventory of over 50,000 quality used auto parts from more than 1,100 vehicles. Our experienced team can help you find the exact OEM part you need for your Porsche. Browse our online inventory or call us to speak with our knowledgeable parts specialists about your specific application. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
Part Specifications
| Part | Alternator Assembly – 190 Amp Output |
| Interchange # | 50191 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – 170K miles, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard electrical component warranty based on mileage and part type) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2010 PORSCHE CAYENN |
| VIN | N/A |
| Vehicle Stock # | 0108255741 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Alternator Assembly – 190 Amp Output:
| ✅ Electrical Output Test | Verified proper amperage output and voltage regulation |
| ✅ Bearing Condition | Smooth rotation with no excessive play or noise |
| ✅ Brush and Slip Ring Inspection | Good contact surface condition with adequate brush material |
| ✅ Case and Mounting Points | No cracks or damage, all mounting ears intact |
| ✅ Pulley Condition | Pulley properly secured with no wobble or damage |
| ✅ Electrical Connections | All terminals clean and undamaged |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #50191, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2010 | Porsche | Cayenne | 3.6L engine with 190 amp alternator option I8GH – Contact us for full compatibility verification |
Questions? Need a shipping quote? Call us now:
603 Auto Salvage | 233 Main St, Plaistow, NH 03865
Mon–Fri 8am–4:30pm | Sat 8am–2pm | Sun Closed
Warranty & Shipping
Frequently Asked Questions
Will this alternator fit my 2010 Porsche Cayenne?
This alternator is specifically for 2010 Cayenne models with the 3.6L engine and 190 amp charging system (option I8GH). Contact us with your VIN to verify exact compatibility for your specific vehicle configuration.
What are signs that my Porsche alternator is failing?
Common symptoms include dim headlights, dashboard warning lights, battery constantly dying, strange noises from the engine bay, or electrical accessories not working properly. A failing alternator will eventually leave you stranded with a dead battery.
How much does a new Porsche Cayenne alternator cost?
New OEM Porsche alternators typically cost $800-1200 plus labor for installation. Our used OEM alternator provides the same quality and performance at a significant savings while maintaining the original Porsche engineering.
Is this alternator tested before shipping?
Yes, all our alternators undergo electrical testing to verify proper output and functionality. We inspect the internal components, bearings, and electrical connections to ensure reliable performance before the part leaves our facility.
What tools are needed to replace a Cayenne alternator?
Typical installation requires basic hand tools, a serpentine belt tool, and possibly removal of engine covers or other components for access. Professional installation is recommended due to the complexity of the Cayenne’s engine bay layout.
Does this come with the pulley installed?
The alternator comes as removed from the donor vehicle. Contact us to verify if the pulley is included, as some installations may require pulley transfer from your original alternator depending on your specific model year and engine configuration.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Interchange Number | 50191 |
| Engine Application | 3.6L V6 |
| Amperage Rating | 190 Amp |
| Option Code | I8GH |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $800-1200 | 1 year | Brand new, longest wait time |
| Aftermarket | $300-500 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $250-350 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $200 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect battery negative terminal before beginning work to prevent electrical shorts
- Take a photo of belt routing before removal to ensure proper reinstallation
- Clean all electrical connections with contact cleaner before connecting to new alternator
- Check belt tension after installation – too loose will cause charging issues, too tight will damage bearings
- Test charging system operation after installation to verify proper voltage output
🔍 Free Fitment Check
Call us with your VIN and we will verify compatibility for free. No obligation, no pressure — just answers.
Our parts specialists check interchange data in real-time
Estimated Shipping Costs by Region
This part ships via FedEx Ground. Prices are estimates — call for an exact quote to your zip code.
| Region | Estimated Cost | Transit Time |
|---|---|---|
| New England (NH, MA, ME, VT, CT, RI) | $15 – $30 | 1–3 business days |
| Northeast (NY, NJ, PA, MD, VA) | $20 – $40 | 2–4 business days |
| Southeast (FL, GA, NC, SC, TN) | $25 – $45 | 3–5 business days |
| Midwest (OH, MI, IL, IN, WI, MN) | $30 – $50 | 3–5 business days |
| Southwest (TX, AZ, NM, OK) | $35 – $55 | 4–6 business days |
| West Coast (CA, OR, WA) | $40 – $65 | 5–7 business days |
Local pickup is always free. Free delivery within 30 miles of Plaistow, NH.
Why Buy From 603 Auto Salvage?
- 50,000+ parts in stock from over 1,100 vehicles on-site in Plaistow, NH
- Every part inspected before listing — no guesswork
- Family-owned salvage yard — real people, not a call center
- 90-Day Warranty on this part
- Fast shipping — most orders ship within 24 hours
- Competitive pricing — save 50–70% vs dealer prices
- Serving New Hampshire, Massachusetts & all 50 states
Ready to order? Call (603) 392-7313 or add to cart above. We are here to help.




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