Tensioner 12566893 For Cadillac
The DUHUI Bearing 12566893 drive belt tensioner is an OE-replacement component for Cadillac CTS, SRX, and STS models equipped with 3.6L and 3.0L V6 engines. This tensioner maintains proper serpentine belt tension across the accessory drive system, preventing belt slip and reducing wear on engine components. Manufactured to match original equipment specifications including 12566893, 12577183, and 19188084, this tensioner delivers reliable performance for compatible General Motors vehicles.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | 12566893 |
| Product Type | Belt Tensioner |
| Mount Hole Diameter | 10.00 mm (0.394 inch) |
| Outside Diameter | 70.00 mm (2.756 inch) |
| Bearing Inside Diameter | 17.00 mm (0.669 inch) |
| Pulley Width | 25.50 mm (1.004 inch) |
| Belt Type | Serpentine |
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:
12566893, 12577183, 19188084, 12597648, 89132
Reference Numbers (Interchange):
ACDelco: 12566893
Continental: 49158
Gates: GTA1076
Vehicle Fitment
CADILLAC CTS: 2008-2013 (3.6L V6, 3.0L V6)
CADILLAC SRX: 2009-2013 (3.6L V6)
CADILLAC STS: 2008-2011 (3.6L V6)
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- OE-replacement belt tensioner for Cadillac CTS 3.6L and 3.0L applications. Matches OEM specifications including 12566893, 12577183, and 19188084 [citation:7].
- 70 mm outside diameter and 25.5 mm pulley width provide exact fitment for the accessory drive system.
- 10 mm mount hole diameter ensures proper installation on the engine bracket.
- Precision-engineered bearing ensures smooth rotation and consistent belt tension across the engine operating range.
Installation Notes
- Verify the 70 mm outside diameter and 10 mm mount hole diameter match your original tensioner before installation.
- Inspect the serpentine belt for wear or damage before installing the new tensioner.
- Torque the mounting bolt to manufacturer specifications (refer to service manual).
- After installation, verify proper belt tension and check for smooth operation.
- This tensioner is compatible with the Cadillac 3.6L LLT and 3.0L LF1 engines – confirm belt routing matches your vehicle’s specific configuration [citation:2].
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces tensioners and automotive bearings to OE specifications. Contact us
