For a 2010 Cadillac CTS, the alternator itself typically costs between about $150 and $350 for remanufactured or aftermarket units, while OEM/GM-new parts usually run around $350 to $550. Including installation, most buyers end up paying roughly $300 to $700 total, depending on part choice and local labor rates.
Current price ranges for the 2010 CTS alternator
Prices vary by source and part type. The following ranges reflect typical retail prices from major auto parts retailers and online suppliers in recent years.
- OEM GM new alternator: about $350–$550
- Aftermarket remanufactured alternator: about $150–$300
- New aftermarket (non-OEM) alternator: about $180–$400
- Used or salvaged alternator (in working condition): about $70–$150
Prices can vary due to part brand, amperage rating, warranty, and whether a core charge is included. Always verify compatibility for your engine and check warranty terms.
What affects cost
Several factors influence the price you pay for an alternator and for installation.
Compatibility and specifications
Make sure the part matches your CTS engine size and the alternator's amperage rating (commonly 120A–170A for various CTS engines). Incorrect amperage can affect charging performance and battery life.
New vs remanufactured vs used
New OEM or aftermarket units tend to cost more but may offer longer warranties. Remanufactured units are usually cheaper and can be a good balance between cost and reliability. Used units are the least expensive but carry higher risk.
Warranty and supplier
Warranty length and what it covers vary by seller. In general, remanufactured units come with 1–3 year warranties from major retailers, while new units may have longer coverage.
Estimated installed cost
Labor factors can swing total installed cost significantly. The following figures are typical for many shops in the United States and Canada.
- Labor time to replace the alternator: about 1 to 2 hours
- Labor rate: commonly $75–$150 per hour depending on region and shop
- Core charge: some sellers charge $0–$100 core (refunded upon return of the old unit)
In most cases, the total installed price ranges roughly from $300 to $700, with higher-end urban shops or dealer service often landing toward the upper end of that range.
Where to buy and how to save
Smart shopping can shave hundreds off the total. Consider these tips when selecting a part and a shop.
- Shop at major retailers and online marketplaces: AutoZone, Advance Auto Parts, O'Reilly, RockAuto, and others to compare prices and warranties
- Consider remanufactured units with solid warranties rather than the cheapest option
- Check the price with the local dealership as a reference point, then compare with independent shops
- Factor in shipping time/cost if ordering online; verify the return policy and core charges
Tip: Get quotes for the exact part number that matches your CTS’s engine and options, and ask about any included or refundable core charges.
Summary
Prices for an alternator on a 2010 Cadillac CTS vary by part type, seller, and location. Expect part prices in the low hundreds to mid hundreds, with labor adding a substantial but predictable amount. Shop around, verify compatibility, compare warranties, and consider remanufactured units with solid warranties to balance cost and reliability. Always obtain at least a couple of quotes before making a purchase to ensure you’re getting a fair price.