Tensioner 12627119 For Buick Cadillac

The DUHUI Bearing 12627119 drive belt tensioner is an OE-replacement component for a wide range of GM vehicles equipped with the 2.0L SIDI turbocharged engine and related powertrains. 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 specification 12627119, this tensioner delivers reliable performance for compatible Buick, Cadillac, Chevrolet, and GMC vehicles.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | 12627119 |
| Product Type | Belt Tensioner Assembly |
| Length | 155.70 mm (6.130 inch) |
| Height | 106.68 mm (4.200 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:
12627119, 999847A
Reference Numbers (Interchange):
ACDelco: 12627119
Gates: 39350
Dayco: 89703
Continental: 49851
Vaico: V51-0460
Vehicle Fitment
BUICK:
Envision 2016-2020
Regal 2014-2020
LaCrosse 2010-2013
CADILLAC:
ATS 2013-2019 (2.0T, 2.5L)
CTS 2014-2019 (2.0T)
CT6 2016-2018 (2.0T)
CHEVROLET:
Blazer 2019-2021 (2.5L)
Camaro 2016-2024 (2.0T)
Colorado 2015-2022 (2.5L)
Equinox 2018-2020 (2.0T)
Impala 2014-2019 (2.5L)
Malibu 2013-2024 (2.0T, 2.5L)
Traverse 2018-2019 (2.0T)
GMC:
Acadia 2017-2021 (2.5L)
Canyon 2015-2022 (2.5L)
Terrain 2018-2020 (2.0T)
HOLDEN:
Commodore (ZB) 2017-2020 (2.0T LTG)
Engine Compatibility: 2.0L L4 SIDI Turbo – Ecotec LTG / LDK, 2.5L L4 – LCW
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- OE-replacement belt tensioner for GM 2.0T, 2.5L applications. Matches OEM specification 12627119.
- 155.7 mm length and 106.68 mm height provide exact fitment for the serpentine belt drive system.
- Spring-loaded automatic tensioning mechanism maintains optimal belt tension as the belt stretches over time.
- Precision-engineered bearing ensures smooth rotation and consistent belt tension.
- Durable construction ensures long service life and reliable performance.
Installation Notes
- Verify the 155.7 mm length and 106.68 mm height 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 pulley rotation.
- This tensioner is designed for GM LTG, LDK, and LCW engine applications – confirm belt routing matches your vehicle’s specific configuration.
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

