Tensioner 170500B4013900 For Baic

The DUHUI Bearing 170500B4013900 belt tensioner is an OE-spec replacement component for the timing belt system on select BAIC models. This timing belt tensioner maintains proper belt tension, ensuring reliable engine timing and preventing potential valve and piston damage if belt failure occurs. Manufactured to match original equipment specifications including 170500-B40139-00, this unit delivers reliable performance for BAIC passenger car applications.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DBK1105 |
| Part Number | 170500B4013900 |
| Product Type | Timing Belt Tensioner / Tensioner Pulley |
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: DBK1105
OE Numbers: 170500-B40139-00, 170500B4013900
Reference Numbers (Interchange):
TNF: LZ-7980
Vehicle Fitment
This timing belt tensioner is designed for BAIC vehicles equipped with the A151 1.5L naturally aspirated engine, including:
BAIC SENOVA D50: 1.5L (A151 engine) 2014-present
BAIC SENOVA X25: 1.5L 2015-present
BAIC SENOVA X35: 1.5L 2016-present
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement for BAIC Senova D50, X25, and X35 1.5L A151 engine applications.
- Designed for timing belt tensioning, maintaining proper belt tension to ensure accurate valve and piston synchronization.
- Cross-references with TNF LZ-7980 for easy interchangeability in the aftermarket.
- Durable construction engineered for the specific timing system requirements of BAIC compact sedan and SUV models.
- OE-compatible replacement for original part numbers 170500-B40139-00 and 170500B4013900.
Installation Notes
- This tensioner is designed for the timing belt system on BAIC models equipped with the A151 1.5L engine.
- When replacing the tensioner, it is highly recommended to replace the timing belt as well – if the belt fails, it can cause serious damage to valves, pistons, or the cylinder head.
- Before removal, locate the OE belt routing diagram under the hood or make a sketch of the belt path.
- Use appropriate tools to relieve tension from the belt – never cut or pry the belt off while under tension.
- Ensure the tensioner mounting surface is clean and free of debris before installing the new unit.
- Torque mounting bolts to manufacturer specifications – M8 bolts typically require 25Nm.
- After installation, rotate the engine by hand to verify proper belt tension and alignment, then start the engine briefly and recheck.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces tensioner pulleys and wheel bearing assemblies to OE specifications. Contact us

