HomeRemy 20277 Alternator
Part #: 20277

Remy 20277 Alternator

Premium Remanufactured
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
Premium Remanufactured
Fitment: Chevrolet and GMC, S10, S10 Blazer, S15, and S15 Jimmy
Easy Returns — Return within 60 days for a full refund
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Reliable Alternator for Chevrolet and GMC Vehicles

The Remy Premium Remanufactured Alternator 20277 is designed to restore charging system performance in select Chevrolet and GMC models. Engineered to meet OE specifications, this 12-volt alternator provides consistent power delivery for vehicles like the Chevrolet S10, S10 Blazer, GMC S15, and S15 Jimmy.

Key Features of Remy Alternator 20277

  • Amperage Rating: 85 amps for stable electrical output
  • External fan type for efficient cooling
  • Remanufactured to meet original equipment standards
  • Includes pulley for straightforward installation
  • Clockwise rotation direction compatible with specified vehicles
  • Internal voltage regulator for reliable voltage control
  • 12-volt system compatibility
  • OE Manufacturer: Delco/Delphi

About the Premium Remanufactured Product Line

The Premium Remanufactured line by Remy offers alternators that have been carefully rebuilt to meet or exceed original equipment manufacturer specifications. This process includes thorough testing and replacement of worn components, ensuring dependable performance and longevity. The 20277 alternator benefits from this rigorous remanufacturing process, providing a cost-effective alternative to new parts without compromising quality.

Detailed Product Description

This Remy alternator 20277 is specifically designed for 12-volt electrical systems in Chevrolet S10, S10 Blazer, GMC S15, and S15 Jimmy models. Its 85-amp output supports the vehicle’s electrical demands, while the external fan design helps maintain optimal operating temperatures. The included pulley and clockwise rotation direction ensure compatibility with the original setup. Featuring an internal voltage regulator, this alternator maintains consistent voltage levels to protect your vehicle’s electrical components.

Common Issues Addressed by This Alternator

  • Battery not charging properly or draining quickly
  • Dimming or flickering headlights and dashboard lights
  • Electrical system warning lights illuminated on the dashboard
  • Unusual noises from the alternator area
  • Vehicle stalling or difficulty starting due to electrical failure

Installation Notes and Tips

  • Verify vehicle compatibility with Chevrolet S10, S10 Blazer, GMC S15, or S15 Jimmy before installation
  • Ensure the alternator pulley aligns correctly with the belt system
  • Disconnect the battery before removing the old alternator to prevent electrical shorts
  • Check belt tension and condition during installation
  • Test charging system after installation to confirm proper operation

Quality Assurance and Warranty

The Remy Premium Remanufactured Alternator 20277 undergoes comprehensive testing to meet OE standards. While specific warranty details may vary, Remy typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.

BrandRemy
Part Number20277
PositionPremium Remanufactured
Amperage Rating85
Fan TypeExternal
New or RemanufacturedRemanufactured
OE ManufacturerDelco/Delphi
Pulley IncludedYes
Rotation DirectionClockwise
Voltage (V)12
Voltage Regulator TypeInternal

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1986ChevroletS102.8LV6N/A85 Amps; Premium Remanufactured
1986ChevroletS10 Blazer2.8LV6N/A85 Amps; Premium Remanufactured
1986GMCS152.8LV6N/A85 Amps; Premium Remanufactured
1986GMCS15 Jimmy2.8LV6N/A85 Amps; Premium Remanufactured

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

104971131105663

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.