Tensioner Tension Pulley 31170RCJA01 For Honda

The DUHUI Bearing 31170RCJA01 drive belt tensioner pulley is an OE-spec replacement component for the accessory drive belt system on select Honda models equipped with 1.3L and 1.5L petrol engines. This idler/tensioner pulley maintains proper serpentine belt tension, ensuring reliable alternator, air conditioning compressor, and power steering pump operation. Manufactured to match original equipment specifications including 31170RCJA01, 31170RMX003, and 31180RCJA01, this unit delivers reliable performance for Honda hybrid and conventional passenger car applications.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | 31170RCJA01 |
| Pulley Outer Diameter | 70.00 mm (2.756 inch) |
| Pulley Width | 20.40 mm (0.803 inch) |
| Product Type | Idler Pulley / 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:
OE Numbers: 31170RCJA01, 31170RMX003, 31180RBJ003, 31180RCJA01
Reference Numbers (Interchange):
GATES: 38030
Honda: 31170-RCJ-A01
Honda: 31170-RMX-003
Honda: 31180-RBJ-003
Vehicle Fitment
HONDA CIVIC: 1.3L Hybrid 2011
HONDA INSIGHT: 1.3L Hybrid 2010-2014
HONDA FIT/JAZZ: 1.5L 2010-2014
HONDA CR-Z: 1.5L Hybrid 2010-2014
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement for Honda applications with 31170RCJA01 / 31170RMX003.
- Designed for accessory drive belt (serpentine belt) guidance and tensioning, maintaining proper belt routing for alternator, A/C compressor, and power steering pump operation.
- Cross-references with GATES 38030 for easy interchangeability in the aftermarket.
- Premium sealed bearing protects from contaminants and ensures long service life.
- OE-compatible replacement for original part numbers 31170RCJA01, 31170RMX003, 31180RBJ003, and 31180RCJA01.
Installation Notes
- This pulley is designed for the accessory drive belt system on Honda models equipped with 1.3L and 1.5L petrol engines.
- Before removal, locate the OE belt routing diagram under the hood or make a sketch of the belt path.
- Use appropriate tools to safely relieve tension – never cut or pry the belt off while under tension.
- When replacing the pulley, it is recommended to inspect the serpentine belt for wear and replace it if necessary.
- Ensure the mounting surface is clean and free of debris before installing the new unit.
- Torque mounting bolt to manufacturer specifications – verify appropriate torque for your specific engine application.
- After installation, ensure the belt is properly seated in all pulley grooves and tracking correctly. Start engine briefly, shut off, and recheck belt alignment.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces idler pulleys, tensioner pulleys, and wheel bearing assemblies to OE specifications. Contact us

