Description
Part Description
This used OEM alternator was removed from a 2013 Mazda MAZ6 equipped with a 2.5L engine. The alternator has been professionally inspected by our technicians and is currently on the shelf ready for immediate shipment. This genuine Mazda part ensures proper fit and reliable performance for your vehicle’s charging system.
The alternator is a critical component of your vehicle’s charging system, responsible for 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. Replacing a failing alternator with a quality used OEM part like this one restores your vehicle’s charging capability at a fraction of the cost of a new unit.
603 Auto Salvage maintains an inventory of over 50,000 used auto parts from more than 1,100 vehicles, ensuring we have the parts you need when you need them. Our experienced team can help you find the right alternator for your Mazda or answer any compatibility questions you may have. Browse our online inventory or contact us to speak with a parts specialist about this alternator or other components for your 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 – 2.5L Engine |
| Interchange # | 55871 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, removed from 2.5L engine |
| Warranty | 90-Day Warranty (Standard electrical component warranty coverage) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2013 MAZDA MAZ6 |
| VIN | N/A |
| Vehicle Stock # | 13MAZ6BLK |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Alternator Assembly – 2.5L Engine:
| ✅ Electrical connections | All terminals and connectors inspected for damage and corrosion |
| ✅ Housing condition | Case checked for cracks, damage, and mounting integrity |
| ✅ Pulley assembly | Pulley verified for proper alignment and secure attachment |
| ✅ Internal components | No visible damage to brushes or slip rings |
| ✅ Mounting brackets | All mounting points and brackets verified intact |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #55871, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2013 | Mazda | MAZ6 | 2.5L engine – 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 2013 Mazda 6 with 2.5L engine?
Yes, this alternator is specifically from a 2013 Mazda MAZ6 with 2.5L engine and should be compatible. We recommend verifying your engine size and contacting us with your VIN for 100% compatibility confirmation.
What are signs that my Mazda 6 alternator is failing?
Common symptoms include dim headlights, dashboard warning lights, dead battery, strange noises from the alternator area, or electrical accessories not working properly. A failing alternator will eventually leave you stranded with a dead battery.
How much does it cost to replace a Mazda 6 alternator?
Labor costs vary by location, but typically range from $150-300 for alternator replacement. Using a quality used OEM alternator like this one can save you hundreds compared to buying new while maintaining reliability.
Is this a genuine Mazda alternator?
Yes, this is a genuine OEM alternator that was originally installed in a 2013 Mazda MAZ6. It provides the exact fit and specifications as the original part in your vehicle.
What tools are needed to replace a Mazda 6 alternator?
Typical tools include basic hand tools, socket set, and possibly a serpentine belt tool. The alternator is usually accessible from the top of the engine bay, but some components may need to be moved for access.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Interchange Number | 55871 |
| Stock Number | 13MAZ6BLK |
| Engine Size | 2.5L |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $350-450 | 1 year | Brand new, longest wait time |
| Aftermarket | $120-200 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $75-125 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $55 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect the negative battery cable before starting work to prevent electrical shorts
- Take a photo of the wiring connections before removal to ensure proper reconnection
- Remove the serpentine belt by releasing tension on the belt tensioner
- Support the alternator while removing the mounting bolts as it can be heavy
- Clean the mounting surfaces and apply anti-seize compound to bolt threads during installation
🔍 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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