HAYIAUTO Alternator 13980 105A Replacement for Honda/Acura 4-Cyl — 12V CW Rotation, 7-Groove Pulley

HAYIAUTO 13980 is a direct-fit replacement 12V alternator rated at 105A, engineered to restore charging performance for compatible Honda and Acura 4-cylinder models.

If your vehicle is showing dimming lights, a battery warning lamp, or intermittent electrical issues, the alternator is a common culprit. The HAYIAUTO 13980 (also referenced by part numbers such as 13980N, 31100RAAA01 and 104210-4730) is built as a full replacement unit with a 105-amp output, clockwise rotation, and a 7-groove pulley to match factory installations on many Honda and Acura engines. This product description explains the technical details, fitment, and practical benefits so you can decide whether it suits your car and driving needs.

Which vehicles and engines does this alternator fit?

This HAYIAUTO alternator covers a range of Honda and Acura 4-cylinder models produced across the 2000s and early 2010s. Fitment depends on engine displacement and year, so confirm your OEM part number before ordering to ensure an exact match.

• Acura CSX 2006–2008 L4 2.0L (1998cc)
• Acura TSX 2004–2008 L4 2.4L (2354cc)
• Honda Accord 2003–2007 L4 2.4L (2354cc)
• Honda Civic 2006–2011 L4 2.0L (1998cc)
• Honda CR-V 2007–2011 L4 2.4L and Honda Element 2003–2011 L4 2.4L

What are the key technical specifications and design features?

The unit is specified as a 12-volt alternator delivering 105 amps with clockwise rotation and a 7-groove pulley. It uses an internal fan and regulator and is constructed from high-grade aluminum castings for improved cooling and reduced weight.

• Electrical: 12V nominal voltage, 105A maximum output
• Mechanical: CW rotation, 7-groove pulley, internal fan
• Regulation & bearings: internal regulator and OEM-grade tested bearings
• Construction: CNC-machined castings and sealed insulating coatings for durability

How does this alternator compare to OEM parts and what testing does it undergo?

HAYIAUTO builds this replacement to meet or closely match OEM fit, form, and function by measuring mounting points and contact interfaces. Each unit undergoes electrical and mechanical tests — including load, voltage regulation, cycling, and heat resistance — to verify performance before shipment.

• Dimensions and mounting surfaces measured to ensure factory fit
• Bearing and lubrication meet OEM-equivalent standards
• Performance checks: load testing, voltage regulation validation, cycling
• Insulating coatings applied to reduce risk of shorts and extend life

What should I check before buying and during installation?

Confirm the alternator part number and visual match with your existing unit; alternator housings and pulley grooves must align with belt systems. Professional installation is recommended to avoid electrical faults and ensure correct belt tension and connector engagement.

• Compare your OEM part number (examples: 13980N, 31100RAAA01, 104210-4730)
• Verify pulley groove count and rotation direction (7 grooves, clockwise)
• Have a qualified technician install and torque mounting bolts to spec
• Test charging system after installation to confirm correct operation

Who is this for: The HAYIAUTO 13980 alternator is intended for owners and technicians seeking a reliable, budget-conscious replacement for worn or failed alternators on compatible Honda and Acura 4-cylinder vehicles. It’s suitable for drivers who want an aftermarket unit built to OEM-style specifications, workshops performing routine electrical repairs, and DIYers comfortable verifying fitment and performing or arranging professional installation.