Wrangler JK 3.8 Serpentine Belt

In cleaning up and doing some maintenance on this new to me Jeep Wrangler It was apparent that the serpentine belt and tensioner needed to be replaced.  The pulley on the tensioner had a little play and the serpentine belt was original with ~118k miles.  The Gates tensioner appears to be identical to the Mopar (both stamped with “MADE IN CANADA” and “Litens”) however it was quite a bit cheaper.  No special tools required you can use a 3/8” drive breaker bar or ratchet to release the tension on the tensioner. 

Serpentine Belt Removal and 3.8 Diagram
Serpentine Belt Removal, and visual belt routing diagram.
Parts needed
  • Gates 39269 - Tensioner
  • Gates K060900 - Belt

Here is the Mopar tensioner part number (you only need one)

  • Mopar 53032860AA - OE Tensioner
Torque Specs from Chilton Library
Tensioner Bolt30 ft lb
3.8 serpentine belt diagram
Jeep Wrangler 3.8 Belt routing diagram Credit: CHILTON LIBARY

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