Automatic Serpentine Belt Tensioner -Original Equipment Quality
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Automatic Serpentine Belt Tensioner -Original Equipment Quality
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Litens Automatic Serpentine Belt Tensioner -Original Equipment Quality

Part No. 950138A Warranty Details  

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Litens Automotive is the original equipment (O.E.) supplier of this tensioner for Mercedes-Benz applications. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer's logo or part number applied to the part). This part is manufactured in Germany by Litens to the same exacting specifications as the O.E. part. The tensioner maintains the O.E. round spring technology as well as the internal damping design specified for this application. The tensioner maintains the O.E. lift feature to assist in belt replacement.

Product Features:
  • Manufactured by the original equipment part supplier to insure proper form, fit, and performance.
  • Internal "round spring" technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • High Performance Polymer Pulley
  • Professional Mechanics will change this tensioner in about 1+ hour.
  • Due to the fact that belts and tensioners have similar Original Equipment "design life targets", it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore doing both together will extend accessory drive life and lower overall labor versus performing these services separately.
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Belt Type:Serpentine
Bolt(s) Included:No
Bracket Included:No
Instructions Included:Yes
Mounting Type:Single bolt rear
Pulley Diameter:76 mm
Pulley Material:Thermoplastic
Pulley Surface:Smooth
Pulley Width:28 mm

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1 Question | 1 Answer
Displaying question 1
  • Q:

    How do you install this tensioner? Is there a single bolt to remove? If so, how do you get to the bolt?
    Asked on 3/21/2013 by Rodney from Mboro, TN

    1 answer



      For further assistance regarding Litens Automatic Serpentine Belt Tensioner -Original Equipment Quality, Part No. 950138A, please provide the year, make, model and engine size of your vehicle. This information would help us to assist you in a better way.
      For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 3/21/2013 by Aaron from AAP
Displaying question 1

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