PORSCHE 911 Carrera 4S Alternator replacement Cost
2001–2005 · Engine, Fuel & Emissions system
Typical range
$611–$6.1k
Parts + labour
Labour hours
1.5–4.5h
At a typical garage
The alternator charges the battery and powers the electrical system while the engine is running. Warning signs include a battery warning light, dimming headlights, or a car that won't start after short trips. PORSCHE 911 Carrera 4S alternator replacement typically costs $611–$6114 at an independent garage.
Typical parts included
- Alternator
- Alternator voltage regulator
What affects the price
- OEM vs remanufactured alternator unit
- Output amperage (higher on models with heavy electrical loads)
- Accessibility in the engine bay—some require partial disassembly
Common questions
How long does this repair take?
Alternator replacement on a PORSCHE 911 Carrera 4S typically takes 1.5–4.5 hours at a garage.
How often does this need to be done?
For a PORSCHE 911 Carrera 4S, this is typically needed typically every 80,000–150,000 miles; replacement is usually on failure rather than a set schedule.
Other engine, fuel & emissions system repairs on the PORSCHE 911 Carrera 4S
- ABS hydraulic unit replacement$468–$842
- ABS sensor replacement$193–$347
- ABS system bleeding$154–$277
- AC compressor clutch replacement$385–$693
- AC compressor replacement$413–$743
Alternator replacement cost on similar cars
- BMW 3 Series Coupe$300–$540
- MERCEDES BENZ E-Klasse Coupe and predecessors$300–$540
- AUDI A5$300–$540
- SAAB 9-3 Coupe$300–$540
- FORD Mustang$297–$545
Get the exact price for your PORSCHE 911 Carrera 4S
Prices vary by year, engine and location. Tell us about your specific car.
Get my price estimate →