Remy 20029 Alternator

Remanufactured Alternator for Saturn Astra

Remy Part Number 20029 is a premium remanufactured alternator built for 12-volt charging systems with a 120 amp output rating. It is a direct-fit electrical replacement for select 2008-2009 Saturn Astra applications and uses an internal voltage regulator for stable charging performance.

Key Features

• 120 amp amperage rating for OE-style charging output
• 12-volt alternator with internal voltage regulator
• Internal fan design
• Clockwise rotation
• Pulley included
• Remanufactured to Remy Premium Remanufactured standards
• OE manufacturer reference: Bosch

Product Details

Remy 20029 is a remanufactured alternator for the 2008-2009 Saturn Astra, engineered for vehicles that use a Bosch OE-style charging system. The internal regulator helps maintain consistent voltage control, while the 120 amp output supports the vehicle’s electrical demands. This part cross-references Bosch 0-124-425-050 for the same application.

Remy’s Premium Remanufactured line focuses on charging and starting components rebuilt to meet application-specific requirements. For Saturn Astra owners searching for a 2008 Saturn Astra alternator, 2009 Saturn Astra alternator, or Remy 20029 replacement, this unit matches the listed fitment and electrical specifications.

Common Replacement Reasons

• Battery warning light or charging system warning light
• Low system voltage or intermittent charging output
• Dim lights or electrical accessories losing power
• Noise from a worn alternator bearing or internal component wear
• Failure of the original alternator to maintain proper charging voltage

Installation Notes and Tips

Verify pulley alignment, connector style, and mounting points against the original unit before installation. Confirm that the vehicle’s charging system wiring, belt condition, and battery state are in good condition so the replacement alternator can operate correctly. This part is listed for 2008-2009 Saturn Astra models only.

Quality Assurance

Remy Premium Remanufactured alternators are remanufactured electrical components built for application-specific fit and function. The OE manufacturer reference to Bosch helps identify the original system design used for this application.