PRODUCT DETAILS
Honda Idler Pulley Bearing Cover – 31185-PCX-003
Keep your accessory drive system protected and running smoothly with the Honda Idler Pulley Bearing Cover, part number 31185-PCX-003. This stamped steel cover fits the Honda Idler Pulley (31190-RRA-A00) and shields the pulley’s bearing from dust, moisture, and road debris. Even though it’s a small component, it plays a big role in keeping your K-Series or F-Series engine reliable over the long haul.
Originally equipped on multiple Honda and Acura models—including the 2000–2009 Honda S2000, 2006–2011 Honda Civic Si, 2009–2014 Acura TSX, and the 2002–2005 Honda Civic Si (EP3)—this bearing cover offers factory-correct fitment and long-term durability. Because it's a genuine Honda part, you get precise alignment, proper coverage, and the peace of mind that comes with OEM-quality construction.
Whether you’re refreshing an aging accessory belt system, replacing an idler pulley, or restoring a Honda or Acura engine bay to factory spec, this OEM bearing cover installs easily and ensures your idler pulley bearing stays clean and protected. It’s the perfect replacement for worn, rusted, or missing covers.
Key Features
- Genuine Honda part — ensures perfect OEM fitment and longevity
- Compatible with Idler Pulley 31190-RRA-A00 used on multiple Honda/Acura models
- Stamped steel construction for durability and proper bearing protection
- Shields the idler pulley bearing from debris, dust, and moisture
- OE equipment on the EP3 Civic Si, S2000, 2006–2011 Civic Si, and 2009–2014 Acura TSX
- Ideal for maintenance, restoration, and accessory drive service
- Direct-fit installation with no modification required