Vehicle price comparison
GMC Sierra 1500 vs Chevy Silverado 1500 Alternator prices
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Price face-off
Median price comparison
Condition comparison
How does the price differ by part grade?
Market analysis
Why does the Chevy Silverado 1500 alternator cost more?
A used Chevy Silverado 1500 alternator carries a median asking price of $137, which is 1% higher than the GMC Sierra 1500 at $135. Supply also plays a role: GMC Sierra 1500 has 2,649 priced listings versus 2,603 for Chevy Silverado 1500, and more listings generally mean more choices and more competitive pricing.
Buyer's checklist
What to check before buying a used alternator
- Match the amperage rating to your vehicle's spec — a lower-amp alternator will undercharge, especially with aftermarket electronics.
- Spin the pulley by hand: it should rotate smoothly with no grinding or wobble.
- Check the connector plug type. Some models switched connector styles mid-generation.
- Ask about output testing — a good yard will bench-test and confirm the unit charges at the correct voltage (13.5–14.5V).
Full price guide
GMC Sierra 1500 Alternator
$35 – $395 · 2,649 listings
Full price guide
Chevy Silverado 1500 Alternator
$30 – $395 · 2,603 listings
Common questions
GMC Sierra 1500 vs Chevy Silverado 1500 alternator FAQ
Is a used GMC Sierra 1500 alternator cheaper than a Chevy Silverado 1500?
GMC Sierra 1500 has the lower median by $2 (1%). The GMC Sierra 1500 alternator ranges from $35 to $395 across 2,649 listings, while the Chevy Silverado 1500 ranges from $30 to $395 across 2,603 listings.
Can I use a GMC Sierra 1500 alternator in a Chevy Silverado 1500?
This comparison describes pricing, not interchangeability. Even when two parts share similar prices, they may require different engines, trims, electronics, or mounting points. Always match the seller's part number against your VIN before purchasing.
How many listings does this comparison cover?
This comparison draws from 2,649 priced GMC Sierra 1500 listings and 2,603 priced Chevy Silverado 1500 listings — 5,252 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): GMC Sierra 1500 $153 vs Chevy Silverado 1500 $154. Grade B (Good): GMC Sierra 1500 $124 vs Chevy Silverado 1500 $132. Grade C (Fair): GMC Sierra 1500 $61 vs Chevy Silverado 1500 $61. Grade A parts are in excellent condition, B is good, and C is fair — always confirm grading criteria with the seller.
Are there different trim variants to choose from?
Yes. The GMC Sierra 1500 alternator has 6 trim variants and the Chevy Silverado 1500 has 6. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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