x
Send Your Inquiry Today
Quick Quote

Tensioner Tension Pulley 38018

38018 Replacement heavy-duty accessory belt tensioner

The DUHUI Bearing 38018 drive belt idler pulley is an OE-spec replacement component for the accessory drive belt system on a wide range of European and North American vehicles, including Audi, BMW, Mercedes-Benz, and Volkswagen Group models . This idler pulley ensures proper serpentine belt routing and maintains correct belt tension, ensuring reliable alternator, air conditioning compressor, and power steering pump operation . Manufactured to match original equipment specifications including 38018, 88916640, and A1112000070, this unit delivers reliable performance for a broad range of passenger car and light truck applications .

Technical Specifications

SpecificationValue / Detail
DH Code
Part Number38018
Outside Diameter70.00 mm (2.756 inch)
Width26.00 mm (1.024 inch)
Bearing Bore (Inner Diameter)17.00 mm (0.669 inch)
Contact SurfaceSmooth / Backside
MaterialThermoplastic / Steel
Product TypeIdler Pulley / Deflection 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: 38018, 88916640, 1662036030, 06A903315D, 06A903315E, 06A903315F, 074145933T, 68061368AA, 68001798AA, 4792835AA, 53013928AA, 1L5Z6B209AA, YS4Z8678AB, 11287503427, A1112000070, 6112000370, 6462000570

Reference Numbers (Interchange):
GATES: 38018
ACDelco: 38018
INA: 531 0760 10, F23315201
SKF: VKMA 38018 (Kit), VKM 38022
DAYCO: APV2214
CONTINENTAL: 49024
FEBI BILSTEIN: 19871
SNR: GA35894
BREDA LORETT: CR3275
RUVILLE: 57205
QUINTON HAZELL: QTA1178
OPTIMAL: 0N1454

Vehicle Fitment

This drive belt idler pulley is compatible with a wide range of Audi, BMW, Mercedes-Benz, Volkswagen, and other vehicle models:

AUDI: A3 (2006-2013), A4 (2009-2010), A5 (2010-2011), TT (2000-2008)

BMW: 128i (2008), 328i/328xi (2008-2013), 528i/528xi (2008), Z4 (2009)

MERCEDES-BENZ: Various models with compatible accessory drive systems

VOLKSWAGEN: Golf 2.0L (2011-2014), Jetta 2.0L (2011-2014), Routan 4.0L V6 (2010)

FIAT: 500X 2.4L (2017)

RAM: 1500/4500/5500 (2014-2022)

Please verify OE number, dimensions and vehicle configuration before ordering.

Product Features

  • Direct OE replacement for Audi, BMW, Mercedes, and VW Group applications with 38018 / 88916640 .
  • Designed for accessory drive belt (serpentine belt) guidance, maintaining proper belt routing for alternator, A/C compressor, and power steering pump operation .
  • Cross-references with multiple leading brands including GATES 38018, INA 531076010, and SKF VKM32243 for easy interchangeability in the aftermarket .
  • Premium sealed bearing protects from contaminants and ensures long service life .
  • Smooth contact surface designed specifically for V-ribbed serpentine belt applications .

Installation Notes

  • This pulley is designed for the accessory drive belt system on a wide range of European and North American vehicle applications .
  • 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

Scroll to Top