90A Alternator for 2006-2011 Honda Civic 1.8L L4, 7-Groove Pulley

12V 90A Alternator for 2006–2011 Honda Civic 1.8L

Replacement alternator with clockwise rotation and a 7-groove pulley for listed Honda Civic models equipped with the 1.8L four-cylinder engine.

Critical fitment warning: This alternator is limited to the stated 1.8L L4 application. Civic Si, Hybrid, and other engine configurations are not confirmed. The source does not specify Sedan or Coupe body style, transmission, trim, production date, regulator or fan configuration, connector pinout, mounting dimensions, pulley diameter, or clutch/freewheel design. Confirm the VIN, 1.8L engine, original alternator label, 90A output, reference number, mounting ears, electrical connector, output-terminal position, and 7-groove pulley configuration before ordering.

Vehicle Compatibility

• 2006–2011 Honda Civic — 1.8L L4 only

Not confirmed: Civic Si, Civic Hybrid, engines other than 1.8L L4, or any configuration that does not match the original alternator and references.

Confirmed Specifications

• Voltage: 12V
• Rated output: 90A
• Rotation: Clockwise (CW)
• Pulley: 7 grooves

Pulley diameter and solid versus clutch/freewheel pulley design are not confirmed.

Reference Numbers

11176N, 11176, 31100RNAA01, 31100RNAA012M2, 31100RNAA01RM, AHGA67, A002TC1391

Reference numbers are provided for comparison. Match them together with the VIN, engine, rated output, mounting configuration, electrical connector, terminal location, and pulley design.

Package Contents

One alternator with a 7-groove pulley as specified. Drive belt, tensioner, mounting bolts, electrical wiring, battery-terminal hardware, and installation tools are not confirmed unless shown in the product images.

Diagnostic and Installation Notes

Charging-system diagnosis and alternator replacement should be completed by a qualified technician. Test the battery, cables, grounds, drive belt, tensioner, and charging circuit before replacement. Disconnect the battery according to the Honda service procedure. Compare the mounting ears, connector, output terminal, pulley alignment, and 90A rating with the original unit. Follow vehicle-specific torque specifications and belt routing. After installation, fully charge the battery, verify charging voltage and current under load, and check for warning lights, belt tracking, or abnormal noise. A weak or undercharged battery can overload a replacement alternator.

Frequently Asked Questions

Is this a 90-amp alternator?
Yes. The source specifies a 12V, 90A output.

Does this fit Civic Si or Hybrid models?
No such fitment is confirmed. The source specifies the 1.8L L4 application only.

Does it fit both Sedan and Coupe?
Body-style coverage is not stated. Verify the VIN, original reference, connector, mounts, and pulley configuration.

Is the drive belt included?
Not confirmed. Plan to reuse or separately obtain the correct belt and any required mounting hardware.