HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 38070 Accessory Drive Belt Idler Pulley - Air Conditioning or Air Conditioning and Air Pump
Part #: 38070

Gates 38070 Accessory Drive Belt Idler Pulley - Air Conditioning or Air Conditioning and Air Pump

DriveAlign Premium OE Pulley, Air Conditioning and Air Conditioning and Air Pump
⚙️ 33 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Pulley, Air Conditioning and Air Conditioning and Air Pump
🚗Fitment: BMW, 318i, 318is, 318ti, M3, and Z3
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Reliable Accessory Drive Belt Idler Pulley for BMW Models

The Gates DriveAlign Premium OE Pulley 38070 is engineered to provide consistent performance for your BMW 318i, 318is, 318ti, M3, and Z3 models. Designed with precision thermoplastic material, this accessory drive belt idler pulley ensures smooth operation within the belt system.

  • Constructed from durable thermoplastic for long-lasting use
  • Outside diameter of 80 mm and width of 21 mm for precise fitment
  • Single pulley design with a smooth backside contact surface
  • Bearing bore inside diameter of 8 mm for compatibility with OEM specifications
  • Non-flanged pulley design suitable for specific BMW accessory drive systems

About the DriveAlign Premium OE Pulley Product Line

The DriveAlign Premium OE Pulley line by Gates focuses on delivering original equipment quality replacement parts. This product line emphasizes exact fit and reliable performance, matching the specifications of the original pulleys used in BMW vehicles. The 38070 pulley maintains the integrity of the accessory drive belt system, helping to reduce wear and maintain proper belt tension.

Detailed Product Description

This accessory drive belt idler pulley features a smooth backside contact surface and no grooves, designed to work seamlessly within the accessory drive belt system of select BMW models. The thermoplastic construction offers resistance to heat and wear, while the 8 mm bearing bore ensures compatibility with factory components. With an outside diameter of 80 mm and a width of 21 mm, the pulley fits precisely in the designated mounting location, supporting belt alignment and tension.

Common Applications and Issues Addressed

  • Replacement for worn or damaged idler pulleys in BMW 318i, 318is, 318ti, M3, and Z3 models
  • Helps resolve belt misalignment and slipping issues
  • Prevents premature belt wear caused by faulty pulleys
  • Reduces noise and vibration in the accessory drive system
  • Maintains proper belt tension for optimal engine accessory performance

Installation Notes and Tips

Ensure the pulley is installed in the correct orientation with the smooth backside contact surface facing the belt. Verify the bearing bore diameter matches the mounting hardware to avoid fitment issues. It is recommended to inspect the entire accessory drive belt system during installation and replace any worn belts or tensioners to maintain system integrity.

Quality Assurance and Warranty

Gates DriveAlign Premium OE Pulley 38070 is manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship. Using this pulley helps ensure reliable operation of your BMW accessory drive belt system.

BrandGates
Part Number38070
PositionDriveAlign Premium OE Pulley, Air Conditioning and Air Conditioning and Air Pump
MaterialThermoplastic
Pulley 1 FlangedNo
Bearing Bore Inside Diameter8
Groove Quantity0
Width21
Outside Diameter80
Pulley Quantity1
Bearing Bore Inside Diameter 1 (mm)8
Contact SurfaceSmooth/backside
ContentsPulley
Number of Grooves0
Number of Pulleys1
Outside Diameter (mm)80
Pulley 1 FlangedNo

This part fits 33 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1999BMW318i1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1999BMW318is1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1999BMW318ti1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1999BMWZ33.2LL6GASAir ConditioningDriveAlign Premium OE Pulley
1998BMW318i1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1998BMW318is1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1998BMW318ti1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1998BMWM33.2LL6GASAir ConditioningDriveAlign Premium OE Pulley
1998BMWZ31.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1998BMWZ33.2LL6GASAir ConditioningDriveAlign Premium OE Pulley
1997BMW318i1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1997BMW318is1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1997BMW318ti1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1997BMWM33.2LL6GASAir ConditioningDriveAlign Premium OE Pulley
1997BMWZ31.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1996BMW318i1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1996BMW318is1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1996BMW318ti1.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1996BMWM33.2LL6GASAir Conditioning and Air PumpDriveAlign Premium OE Pulley
1996BMWZ31.9LL4GASAir ConditioningDriveAlign Premium OE Pulley
1995BMW318i1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1995BMW318is1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1995BMW318ti1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1995BMWM33.0LL6GASAir Conditioning and Air PumpDriveAlign Premium OE Pulley
1994BMW318i1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1994BMW318is1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1994BMWM33.0LL6GASAir Conditioning and Air PumpDriveAlign Premium OE Pulley
1993BMW318i1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1993BMW318is1.8LL4GASAir ConditioningDriveAlign Premium OE Pulley
1992BMW318i1.8LL4GASAir ConditioningW/V-Ribbed Belt; DriveAlign Premium OE Pulley
1992BMW318is1.8LL4GASAir ConditioningW/V-Ribbed Belt; DriveAlign Premium OE Pulley
1991BMW318i1.8LL4GASAir ConditioningW/V-Ribbed Belt; DriveAlign Premium OE Pulley
1991BMW318is1.8LL4GASAir ConditioningW/V-Ribbed Belt; DriveAlign Premium OE Pulley

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

112822450873807045053490636455172669964551748321645522441738908889088FN900004900004AFS99150

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.