Description
Part Description
This Grade A alternator was removed from a 1987 Porsche 924 with only 59,000 miles on the odometer. The unit has been thoroughly inspected by our experienced technicians and is currently on our shelf ready to ship. This OEM component shows excellent condition consistent with the low-mileage donor vehicle.
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 alternator failures include worn brushes, failed diodes, or bearing wear that can leave you stranded with a dead battery. Symptoms of alternator failure include dim headlights, dashboard warning lights, or difficulty starting the vehicle.
603 Auto Salvage maintains over 50,000 quality used parts in stock from more than 1,100 vehicles. Our experienced team can help you find the exact OEM part you need for your Porsche repair. Browse our online inventory or call our parts specialists to verify compatibility and availability for your specific vehicle. 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 |
| Interchange # | 58184 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – Excellent working condition from 59K-mile vehicle, inspected and ready to ship |
| Warranty | 6-Month Warranty (Low mileage donor vehicle and Grade A condition qualify for extended coverage) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 1987 PORSCHE POR924 |
| VIN | N/A |
| Vehicle Stock # | 0724255271 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Alternator Assembly:
| ✅ Electrical Output Test | Verified proper voltage generation and amperage output |
| ✅ Bearing Condition | Smooth rotation with no excessive play or noise |
| ✅ Brush and Slip Ring Wear | Minimal wear consistent with low mileage |
| ✅ Housing and Mounting Points | No cracks or damage, all mounting ears intact |
| ✅ Pulley Condition | Pulley spins freely with no wobble or damage |
| ✅ Electrical Connections | All terminals clean and undamaged |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #58184, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 1987 | Porsche | 924 | Verify engine type and electrical specifications – contact us for full compatibility list |
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 1987 Porsche 924?
This alternator was removed from a 1987 Porsche 924, but we recommend verifying your specific engine configuration and electrical requirements. Contact our parts team with your VIN for guaranteed compatibility confirmation.
How do I know if my Porsche alternator is failing?
Common signs include dim or flickering headlights, dashboard battery warning light, difficulty starting, or electrical accessories not working properly. A voltmeter test can confirm if your alternator is producing proper charging voltage.
What is the interchange number 58184 used for?
The interchange number 58184 is an industry standard reference that helps identify compatible alternators across different part suppliers and salvage yards. This ensures you get the correct alternator for your vehicle’s electrical system.
Is this a remanufactured or original alternator?
This is an original OEM alternator removed from a low-mileage 1987 Porsche 924. It has not been remanufactured but has been tested and inspected to ensure proper operation before sale.
What tools do I need to replace a Porsche 924 alternator?
Typical tools include basic wrenches, socket set, and possibly a serpentine belt tool depending on your specific setup. Always disconnect the battery before beginning work and note the electrical connection positions before removal.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Interchange Number | 58184 |
| Stock Number | 0724255271 |
| Part Code | ALT |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $180-$250 | 1 year | Brand new, longest wait time |
| Aftermarket | $85-$140 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $70-$95 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $55 | 6-Month Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect negative battery cable before starting work to prevent electrical shorts
- Take photos of electrical connections before removal to ensure proper reconnection
- Check belt tension after installation – too tight can damage bearings, too loose causes slipping
- Test charging system after installation to verify 13.5-14.5 volt output at idle
🔍 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
- 6-Month 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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