HUMMER H3 Alpha Alternator replacement Cost
2007–2010 · Engine, Fuel & Emissions system
Typical range
$478–$4.7k
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. HUMMER H3 Alpha alternator replacement typically costs $478–$4734 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 HUMMER H3 Alpha typically takes 1.5–4.5 hours at a garage.
How often does this need to be done?
For a HUMMER H3 Alpha, 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 HUMMER H3 Alpha
- 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
- HYUNDAI Santa Fe$270–$495
- HONDA CR-V$270–$495
- LEXUS RX$297–$545
- TOYOTA Highlander / Kluger$270–$495
- KIA Sorento$270–$495
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