A-Premium Belt Tensioner Assembly for Honda & Acura 2.4L — Direct-Fit with Pulley, Sealed Bearing

The A-Premium Belt Tensioner Assembly with Pulley is a direct-fit replacement part that restores proper V-ribbed belt tension for select Honda Accord, Crosstour, and Acura TSX 2.4L engines.

This replacement tensioner assembly is engineered to match original-equipment fit and function for specific Honda and Acura 2.4L petrol engines. It combines a robust cast housing with a precision pulley and sealed bearing to keep accessory belts aligned, reduce noise, and help prolong belt life. Every unit carries A-Premium’s one-year unlimited-mileage guarantee, offering reassurance after installation.

Which vehicles and engines is this tensioner compatible with?

This tensioner is manufactured for l4 2.4L petrol engines and fits multiple model years with the corresponding accessory layout. Confirm your vehicle’s part number or cross-reference the listed reference numbers to ensure compatibility before ordering.

• Honda Accord: 2008–2012 (2.4L)
• Honda Crosstour: 2012–2015 (2.4L)
• Acura TSX: 2009–2014 (2.4L)
• Reference numbers: 31170R40A01, 31170R40A02, 31170RLFJ01 and related OE codes

How does this tensioner match original equipment performance?

Designed to mirror OE geometry and mounting points, the A-Premium assembly installs without modification and aligns the V-ribbed belt for correct routing. The pulley diameter, bearing bore, and width are specified to maintain factory belt tension and rotation characteristics.

• Pulley outside diameter: 76.5 mm for OE-like belt contact
• Bearing bore inside diameter: 17 mm for correct shaft fit
• Width: 37.5 mm to match belt profile
• Single flanged pulley included; assembly supplied ready-to-fit

What benefits should I expect after installation?

Replacing a worn or noisy tensioner with this assembly helps restore smooth accessory drive operation and can reduce belt squeal or slippage. The sealed bearing and quality pulley promote quieter rotation and consistent tension under load, supporting alternator, A/C, and power-steering performance.

• Restores consistent belt tension and alignment
• Reduces belt noise and vibration
• Durable construction for reliable service life
• Ships as an assembled unit for fast replacement

What should I check before ordering and installing?

Verify your vehicle’s model year and engine size match the listed fitment; cross-check OEM reference numbers if available. Inspect adjacent components—belt condition, pulleys, and mounting hardware—and replace them as needed to avoid premature wear on the new tensioner.

• Confirm vehicle: Accord 2008–2012, Crosstour 2012–2015, TSX 2009–2014 (all 2.4L)
• Compare reference codes: 31170R40A01 / 31170R40A02 / 31170RLFJ01
• Check belt and accessory pulley condition before fitment
• Follow torque specs and alignment procedures during installation

Who is this for: Drivers and DIY mechanics who need a reliable, direct-replacement belt tensioner for Honda Accord, Crosstour, or Acura TSX 2.4L engines. It’s particularly useful for owners addressing belt noise, slippage, or visible wear on the factory tensioner who want an OE-compatible assembly backed by a one-year unlimited-mileage guarantee.