Tensioner Tension Pulley EF8509A For ACURA

The DUHUI Tensioner Pulley EF8509A is a premium accessory drive belt tensioner pulley designed for Acura models from 2013 onward. Engineered to maintain optimal serpentine belt tension, this tensioner pulley prevents belt slip, reduces noise, and ensures consistent accessory drive performance. It matches OE specifications including EF8509A and is directly interchangeable with Gates 38009 and ACDelco 38009.
Specifications
| Parameter | Value |
|---|---|
| DH Code | |
| Part Number | EF8509A |
| Outside Diameter | 76.00 mm (2.992 inch) |
| Width | 25.00 mm (0.984 inch) |
| Bore Diameter | 17.00 mm (0.669 inch) |
| Number of Grooves | 6 |
| Material | Thermoplastic |
| Belt Type | Serpentine / V-Ribbed |
| Flanged | Yes |
| Product Type | Automatic Belt Tensioner Pulley / Idler Pulley |
Note: Dimensional data is based on available sources. This is a belt tensioner pulley designed for Acura applications. Please verify measurements against your original part before ordering.
Important: All information on this page is for reference only. Please verify OE numbers, dimensions, and vehicle fitment against your original part before ordering. Contact us for fitment confirmation.
DH Code & OE Numbers & Reference Numbers
DH Code:
OE Numbers: EF8509A, 38009
Reference Numbers (Interchange):
Gates: 38009
ACDelco: 38009
DAYCO: 89009
TNF: 000076
Vehicle Fitment
ACURA: ILX (2013-2015), TL (2013)
FORD: Various models
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Automatic belt tensioner pulley designed for Acura and Ford engine applications
- Heavy-duty thermoplastic construction with steel bearing for durability and long service life
- Bearing is designed for application-specific speed and load requirements
- Provides reliable operation under severe conditions for year-round performance
- Flanged design prevents belt misalignment
- 6-groove V-ribbed pulley configuration with 76 mm outside diameter
- Direct interchange with major brands including Gates, ACDelco, and DAYCO
- Manufactured to OE specifications for reliable performance and service life
- Available for product customization – logo, code, pattern, or words can be applied to the bearing or packaging
Installation Notes
- Verify the part matches your original before installation – check belt routing and tensioner mounting position
- Confirm fitment for your specific Acura model (2013 onward)
- Inspect the serpentine belt for wear and replace if necessary when installing a new tensioner pulley
- Torque the mounting bolts to manufacturer service manual specifications
- Check that the pulley rotates freely after installation
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces belt tensioners, idler pulleys, and automotive components to OE specifications. Contact us

