Description
Part Description
This OEM alternator was professionally removed from a 2007 Lexus IS250 donor vehicle and has been thoroughly inspected by our certified technicians. The unit is currently on our shelf and ready for immediate shipment to get your vehicle back on the road quickly.
The alternator is a critical component of your vehicle’s charging system, converting mechanical energy from the engine into electrical energy to power your car’s electrical systems and recharge the battery. Common alternator failures include worn brushes, failed diodes, or bearing problems that can leave you stranded with a dead battery. Symptoms of alternator failure include dimming headlights, dashboard warning lights, or difficulty starting the vehicle.
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 part you need for your repair. Browse our online inventory or contact us directly to speak with our knowledgeable parts specialists about your specific needs. 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 # | 50104 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – Good working condition, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard warranty coverage for electrical components based on mileage and condition) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2007 LEXUS IS250 |
| VIN | N/A |
| Vehicle Stock # | 0915231237 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Alternator Assembly:
| ✅ Electrical Connections | All terminals and connections inspected for corrosion and damage |
| ✅ Housing Condition | Case checked for cracks, damage, and proper mounting points |
| ✅ Pulley Assembly | Pulley verified for proper alignment and secure attachment |
| ✅ Internal Components | Brushes, slip rings, and windings visually inspected |
| ✅ Bearing Operation | Shaft rotation checked for smooth operation and minimal play |
| ✅ Output Testing | Electrical output verified within manufacturer specifications |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #50104, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2007 | Lexus | IS250 | Contact us for full compatibility list with interchange 50104 |
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 2007 Lexus IS250?
Yes, this alternator was removed from a 2007 Lexus IS250 and carries interchange number 50104. Contact us to verify compatibility with your specific vehicle’s VIN and engine configuration.
What are signs that I need a new alternator?
Common symptoms include dimming headlights, dashboard warning lights, difficulty starting, strange noises from the engine bay, or a dead battery that won’t hold a charge. If your battery keeps dying, the alternator may not be charging it properly.
How long does alternator installation typically take?
Most alternator replacements take 1-3 hours depending on the vehicle and accessibility. The process involves disconnecting the battery, removing the serpentine belt, and unbolting the alternator from its mounting bracket.
Is this a remanufactured or used OEM alternator?
This is a used OEM alternator that was professionally removed from a donor vehicle and inspected by our technicians. It has not been remanufactured but is in good working condition.
What warranty comes with this alternator?
This alternator includes our 90-day warranty covering defects in materials and workmanship. The warranty begins from the date of purchase and covers replacement or refund if the part fails under normal use.
Can you test the alternator before shipping?
Yes, we can perform additional testing on the alternator before shipment upon request. Our technicians can verify output voltage and amperage to ensure the unit meets manufacturer specifications.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Interchange Number | 50104 |
| Stock Number | 0915231237 |
| Part Number | 601 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $250-$400 | 1 year | Brand new, longest wait time |
| Aftermarket | $120-$200 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $85-$125 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $75 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect the negative battery terminal before beginning work to prevent electrical shorts
- Take a photo of wire connections before removal to ensure proper reconnection
- Check the serpentine belt condition while replacing the alternator – replace if cracked or frayed
- Ensure all electrical connections are clean and tight to prevent charging issues
- Test the charging system 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.




Reviews
There are no reviews yet.