Direct-Fit Belt Tensioner Assembly — 11955-3XN0A
Restore factory-correct belt tension on your QR25 (E26) engine with this complete belt tensioner assembly. Engineered for precise fit and dependable durability, it arrives pre-assembled for fast, hassle-free installation.
- Direct replacement for part number 11955-3XN0A
- Complete unit: spring-loaded tensioner with pulley
- OE-style fit and belt tracking for stable belt alignment
- Precision bearing pulley for smooth, quiet operation
- Durable construction to withstand heat and vibration
- Ready to install—no pressing or special tools required
Benefits
- Eliminates belt squeal, slipping, and vibration
- Maintains proper belt tension to protect alternator, A/C, and power steering
- Restores smooth, reliable accessory-drive performance
Typical symptoms of a worn tensioner
- Chirping or squealing belt noise, especially at startup
- Belt flutter or visible misalignment
- Intermittent charging/A/C performance issues
- Rough or noisy pulley rotation
Compatibility & confirmation
Engine: QR25 (2.5L) | Platform: E26. Always confirm fitment by matching the part number 11955-3XN0A with your vehicle’s VIN and existing component.
What's in the box
- 1 x Belt tensioner assembly (tensioner + pulley)
Installation notes
- Inspect and replace the serpentine belt if worn, glazed, or cracked
- Follow factory torque specs and belt routing diagram
- Verify smooth pulley rotation after installation
