The Ultimate Guide to Second Hand Alternators for Sale
An alternator is the unsung hero of your vehicle’s electrical system, ensuring everything keeps running by converting engine power into electricity. When your alternator fails, your car’s battery can’t recharge, leading to costly breakdowns and frustrating delays. Rather than spending a fortune on new parts, many savvy drivers are turning to second hand alternators for sale—savvy solutions that balance cost, reliability, and sustainability. This guide goes beyond the basics to provide everything you need to know about sourcing, buying, and maximizing the life of a used alternator.
Comparison Table: Types and Applications of Second Hand Alternators
| Alternator Type | Application | Typical Vehicles | Key Advantages | Considerations |
|---|---|---|---|---|
| OEM Used Alternators | Direct replacement, plug-and-play | Standard cars, SUVs, trucks | Matches original specs, guaranteed fit | Variable wear & longevity |
| Aftermarket Used Units | Flexible fit, often multi-vehicle | Older models, custom builds | Wider compatibility, lower price | May need modification |
| Remanufactured Units | Rebuilt with new components | Most passenger vehicles | Increased reliability, longer life | Pricier than other used types |
| Performance Alternators | Enhanced electrical output | High-demand, luxury, sports | Supports upgraded electronics | Higher cost |
| Specialty Alternators | For unique or rare vehicles | Imports, classic cars | Fills hard-to-find needs | Limited availability |
Why Buy Second Hand Alternators?
A second hand alternator offers both financial and practical benefits. The most obvious advantage is the reduction in cost—often half, or even a third, of the price of a new unit. Environmental benefits are significant as well, as you’re contributing to the reuse of valuable resources. For vehicles where OEM parts are discontinued or rare, used alternators from sources like www.usedpart.us and allusedparts.com can be invaluable.
Buying a used alternator doesn’t mean compromising reliability. Modern vehicles have advanced alternators, but the basic technology hasn’t dramatically changed, making quality used alternatives a safe bet. Companies like backtoroadautoparts.com and www.testedautoparts.com offer tested and warranted units, demonstrating confidence in their products.
Understanding How Alternators Work
An alternator transforms mechanical energy into electrical power, supplying your car’s electrical systems and recharging the battery. The alternator consists of:
- Rotor: A rotating electromagnet..
- Stator: Stationary set of wire coils, which generates electricity as the rotor spins inside it.
- Rectifier: Converts alternating current (AC) into usable direct current (DC).
- Voltage Regulator: Maintains steady output voltage, protecting sensitive electronics.
- Housing and Shaft: The framework that enables the alternator to mount on your engine and spin with the belt.
Sites like usedautopartspro.com and backtoroadautoparts.com explain these components, reinforcing why proper fit and function are essential.
Where to Find Second Hand Alternators for Sale
A broad range of online platforms and physical locations cater to used auto parts buyers:
- Online Marketplaces: Outlets like www.usedpart.us, allusedparts.com, www.premiumautopartsstore.us, www.basicautopart.com, and www.testedautoparts.com specialize in nationwide or even global shipping, often with robust support and warranties.
- Junkyards & Salvage Yards: Pull-your-own-part facilities such as www.pullapart.com allow buyers to extract components themselves, ensuring the correct fitment.
- Specialty Dealers: Niche providers (e.g., www.partstrust.co.za) focus on hard-to-find or foreign vehicle alternators.
- Local Parts Stores and Garages: Sometimes have networks or “yard connections” for rare or last-minute needs.
- Buyer Networks/Maps: Platforms like junkyardsnearme.net help you locate the nearest buyer or seller for your alternator quickly.
Many of these providers offer consultations, inventory search tools, and direct-support lines for guidance.
How to Choose the Right Second Hand Alternator
Choosing the correct unit is crucial for reliable vehicle operation. Follow these steps:
- Check Compatibility
Know your vehicle’s make, model, year, engine type, and existing alternator specifications. A mismatch can cause charging issues or mounting problems. - Inspect Before Buying
If buying in-person (e.g., at www.pullapart.com), inspect for corrosion, cracks, or missing mounting points. Turn the pulley—if it feels gritty or rough, consider another unit. - Review Seller Testing Standards
Reputable sellers like www.testedautoparts.com and allusedparts.com conduct function tests and provide warranty coverage. - Ask for Mileage and History
Lower-mileage units generally last longer. Ask about the donor vehicle’s age and service records. - Check Return/Exchange Policy
Explore warranty length and conditions. Some, like allusedparts.com, offer six-month warranties—peace of mind for any major purchase. - Consider Remanufactured Options
While slightly more expensive, these have new bearings, brushes, and a cleaned casing, maximizing reliability and value.
How to Install a Second Hand Alternator
Installing a used alternator is straightforward for seasoned DIYers, but even beginners can attempt it with caution:
- Disconnect the Battery
Always start by removing the negative battery cable to prevent accidental shorts. - Remove the Old Alternator
Unbolt all mounts, disconnect wiring, and carefully extract the alternator. Note how the serpentine belt is routed. - Install the Replacement Unit
Position the new (used) alternator, secure the mounting bolts, reinstall electrical connections, and refit the belt. - Reconnect the Battery and Test
Start the vehicle and check voltage output with a multimeter, ensuring the battery charges between 13.5V and 14.5V.
Pro tip: Platforms such as www.pullapart.com often provide part-pulling videos and inventory search to guide DIYers.
Troubleshooting and Maintaining Your Used Alternator
After installation, watch for these common issues:
- Battery Not Charging: Verify belt tension, wiring, and output voltage.
- Unusual Noises: Whining or grinding may indicate bearing wear—common on high-mileage units.
- Warning Lights: Dashboard indicators signal voltage irregularities. Recheck connections or consider a different alternator if issues persist.
To prolong alternator life:
- Avoid overloading the electrical system.
- Replace worn belts, pulleys, and tensioners.
- Routinely inspect the alternator’s mounting bolts for tightness.
Quality warranty coverage, like that from allusedparts.com and www.testedautoparts.com, offers additional protection.
Environmental and Economic Benefits
Opting for a second hand alternator does more than save you money. By repurposing functional parts, you keep usable materials out of landfills and reduce the energy and pollution involved in manufacturing new units. Many businesses, like backtoroadautoparts.com and www.partstrust.co.za, emphasize environmental responsibility in their missions.
The cost advantages are significant:
- Lower Purchase Price: Up to 60% less than new alternators.
- Reduced Labor Charges: Many alternators from sources like www.usedpart.us come ready to install, minimizing shop time.
- Rebates and Core Credits: Some retailers and junkyards “buy back” old units, offsetting your costs even more.
Trusted Sellers and Warranties
Reliable sources are critical when purchasing used auto parts. Sellers such as www.usedpart.us, allusedparts.com, www.pullapart.com, backtoroadautoparts.com, and www.testedautoparts.com stand out due to:
- Rigorous testing procedures.
- Inventory tracking to verify mileage and service history.
- Clear and fair warranty policies (6 months is common).
- Nationwide shipping and customer support.
Local options, detailed at junkyardsnearme.net and www.premiumautopartsstore.us, often provide real-time answers and direct access to inventory.
Used Alternator Buying Tips
- Always Compare Prices: Use provider comparison tools like those at www.partstrust.co.za to ensure you get the best deal.
- Seek Certified or Professionally-Inspected Units: Prefer sites that guarantee quality through in-house testing.
- Leverage Nationwide Inventory Networks: Tapping into larger networks like those on www.basicautopart.com increases chances of finding a match.
- Utilize Buyer Guides/Maps: Platforms like junkyardsnearme.net connect you with regional sellers quickly and efficiently.
- Understand All Costs: Factor in shipping, return shipping (if needed), and possible core charges.
Table: Technical Features Comparison of Second Hand Alternators
| Feature | OEM Used Alternator | Aftermarket Used | Remanufactured | High-Performance | Specialty/Imported |
|---|---|---|---|---|---|
| Voltage Output | 13.5-14.5V | 13-15V | 13.5-14.5V | 14-15V | Varies |
| Amperage Range | 70-160A | 60-150A | 70-180A | 200A+ | <100A->180A |
| Mounting Fit | Perfect OEM | Variable | OEM or Custom | Custom | Often Custom/OEM |
| Average Mileage (Used) | 30K-90K | 40K-120K | 0 (reset/rebuilt) | 20K-50K | Variable |
| Warranty Offered | 1-6 months | 1-6 months | 6-36 months | 1-12 months | 0-6 months |
| Certification | Sometimes OEM cert. | Seldom | Usually certified | Seldom | Rare |
| Cost (Typical, USD) | $50-$150 | $40-$130 | $90-$250 | $200-$350 | $80-$400 |
| Environmental Benefit | High | High | Medium-High | Medium | Medium-High |
Conclusion
Second hand alternators offer an affordable, reliable, and eco-friendly solution for keeping your vehicle’s electrical system healthy. With numerous suppliers like www.usedpart.us, allusedparts.com, backtoroadautoparts.com, and www.partstrust.co.za providing tested and warranted units, finding the perfect alternator is easier—and safer—than ever. By understanding the basics of alternator operation, assessing compatibility, comparing sellers, and performing careful installation, you can enjoy significant savings while extending the life of your vehicle.
FAQ
What is a second hand alternator?
A second hand alternator is a previously used or salvaged alternator removed from another vehicle. Often sold by junkyards, online parts stores, or specialist dealers, it offers a lower-cost replacement for a failing or dead alternator in your own vehicle.
How do I know if a used alternator will fit my car?
You’ll need your car’s make, model, year, and engine type. Use part number lookups or compatibility tools offered by allusedparts.com, www.testedautoparts.com, or www.basicautopart.com. Consult with sellers for verification before purchase.
Are used alternators reliable?
Yes, especially when sourced from reputable suppliers who test and warranty their parts. Remanufactured or low-mileage OEM units, such as those from www.usedpart.us, offer excellent reliability for most daily driving needs.
What are the signs of a failing alternator?
Common signs include dimming headlights, battery warning lights, electrical glitches, or trouble starting. If the alternator is not charging the battery, the engine may stall or refuse to start.
Is it difficult to replace my alternator myself?
While alternator replacement requires basic mechanical skills and tools, it’s a common DIY project. Platforms like www.pullapart.com offer videos and guides, while always ensuring you disconnect the battery prior to starting.
How much should a used alternator cost?
Prices vary by vehicle and alternator type but typically range from $40 to $150. High-performance or rare units will be priced higher, especially for imports found via www.partstrust.co.za.
What warranty should I expect?
Many reputable sellers, such as allusedparts.com and www.testedautoparts.com, offer warranties from one to six months. Always check the exact terms for return, replacement, or refund policies.
Are there benefits to choosing remanufactured over regular used alternators?
Remanufactured alternators are thoroughly cleaned and rebuilt with new components, offering greater longevity and reliability. They’re more expensive but often come with longer warranties and OEM-like performance.
Can I sell my old alternator?
Yes, platforms like junkyardsnearme.net connect sellers and buyers for old alternators. Many parts stores and salvage yards offer core charges (deposits) that are refunded upon return of your used part.
What should I check before buying a used alternator online?
Verify part compatibility, the condition (mileage, appearance), seller reputation, warranty offered, and the total price including shipping. Use price comparison and history-tracking tools on sites like www.partstrust.co.za to ensure the best deal.
