PRODUCT DETAILS
Denso Remanufactured Alternator - 2006-2011 Honda Civic Si
Battery light on in your 8th gen Civic Si? Your alternator's probably done. This is a Denso remanufactured alternator for K20Z3 engines, and it's a direct replacement for Honda part number 31100-RTA-033. Denso's the OEM supplier for Honda, so this is the same alternator that came in your car originally, just fully rebuilt in the USA. If your electrical system's acting weird, your headlights are dimming at idle, or you're hearing a whining noise from the alternator, this is what you need.
What Remanufactured Actually Means
You're not getting a used alternator that's been spray painted and boxed up. Denso tears these down completely, high-voltage tests the stator and rotor, replaces all the bearings, brushes, and seals, and bench tests the whole unit before it ships. It's a full rebuild to OEM spec, not a quick cleanup job. You're getting an alternator that'll work just like a new one for way less money.
Why Buy Denso
Denso makes the original alternators that Honda uses in the factory. They've been doing it for decades and they know these alternators inside and out. When you buy a remanufactured Denso alternator, you're getting the exact same design and quality as the original, just rebuilt. You're not rolling the dice on some cheap aftermarket alternator that might regulate voltage weird or die in six months.
What You Get
- Denso remanufactured alternator
- High-voltage tested stator and rotor
- All-new bearings, brushes, and seals
- Bench tested before shipping
- Remanufactured in USA
Fits Your Car
- 2006-2011 Honda Civic Si (K20Z3 engine)
Replaces This Part Number
- Honda: 31100-RTA-033
Note: This is a remanufactured alternator, not new. It's been fully rebuilt to OEM spec and tested before shipping. Direct replacement for Honda part number 31100-RTA-033. If your battery light's on, get your alternator tested before you buy a new battery. The battery's usually fine.