ILONPA Alternator for Honda & Acura 3.5L–3.7L Vehicles (80A, CW Rotation) - Direct-Fit Replacement

ILONPA replacement alternator engineered to restore reliable 12V charging for select Honda and Acura 3.2–3.7L engines from 2003–2009.

This high-output alternator is a direct-fit aftermarket unit designed to match OEM electrical and mechanical specifications for multiple Honda Odyssey, Pilot and Ridgeline model years, plus a range of Acura MDX, RL and TL vehicles. Built to deliver stable 12-volt power at 80 amps, the assembly includes an internal regulator and cooling fan compatible with clockwise rotation (CW) pulleys. Every unit is tested for durability and heat resistance so it meets daily driving demands and restores battery charging, accessory performance and ignition reliability.

Which vehicles and engine sizes does this alternator fit?

This alternator fits a range of Honda and Acura models with V6 engines in the 3.2–3.7L family. Confirm the part by matching model year, engine displacement and original part numbers before purchase to ensure a correct match.

• Honda Odyssey 3.5L: 2005–2007
• Honda Pilot 3.5L: 2005–2008
• Honda Ridgeline 3.5L: 2006–2008
• Acura MDX 3.5L: 2003–2006; MDX 3.7L: 2007–2009
• Acura RL 3.5L: 2005–2008; Acura TL 3.2L: 2004–2008; TL 3.5L: 2007–2008

How does this alternator match OEM specifications and electrical needs?

The unit reproduces key OEM characteristics: 12 volts, 80 amps output, clockwise rotation and an internal regulator. That combination ensures charging system stability for factory wiring, belts and accessory loads without requiring electrical modifications.

• Voltage: 12V nominal for standard automotive systems
• Amperage: 80A continuous output for charging and accessories
• Rotation: CW (clockwise) to match factory pulley alignment
• Built-in IR regulator and internal fan for thermal control

What OE part numbers and aftermarket cross-references does it replace?

If you have an existing part number to compare, this alternator replaces many common OE and aftermarket references so it’s easier to confirm compatibility. Always verify the original part number stamped on your old alternator before ordering.

• Common OEM numbers: 31100-RDJ-A01, 31100-RGL-A01, 31100-RJA-A01/A02
• Aftermarket and cross references: 104210-3100, 104210-4300, 400-52163 series
• Other listed codes: CSC10, CSD29/CSD30/CSD69 for additional cross-checking

What quality checks and warranty coverage are included?

The alternator is subjected to performance and thermal testing to reduce early failures under engine-bay heat and vibration. ILONPA supports the product with a standard one-year warranty and customer assistance to address fitment or performance concerns.

• Tested for reliability, durability and high-heat performance
• One-year limited warranty from ILONPA
• Customer support recommended: confirm car model and part number before purchase

Who is this for: This ILONPA alternator is intended for owners, mechanics and DIY technicians replacing a failing or underperforming alternator on the specified Honda and Acura models. It’s a practical choice when you need a direct-fit, specification-matching replacement with documented cross-reference numbers and a one-year warranty—ideal for restoring factory charging performance without custom wiring or modifications.