GMC Sierra 3500HD Alternator replacement Cost
2008–2013 · Engine, Fuel & Emissions system
Typical range
$492–$4.9k
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. GMC Sierra 3500HD alternator replacement typically costs $492–$4872 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 GMC Sierra 3500HD typically takes 1.5–4.5 hours at a garage.
How often does this need to be done?
For a GMC Sierra 3500HD, 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 GMC Sierra 3500HD
- ABS hydraulic unit replacement$459–$842
- ABS sensor replacement$189–$347
- ABS system bleeding$151–$277
- AC compressor clutch replacement$378–$693
- AC compressor replacement$405–$743
Alternator replacement cost on similar cars
- RAM Trucks 3500$324–$594
- CHEVROLET Silverado$297–$545
- FORD Ranger Double Cab$270–$495
- NISSAN Titan Crew Cab$324–$594
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