Description
New PAI replacement belt tensioner kit, part number 880892, for select Mack applications. Cross-references Mack 21568414. Confirm fitment by original part number before ordering.
What comes in this kit:
- Belt Tensioner (PAI 880878, OEM 21454379) – qty 1
- Belt Serpentine (PAI 880868, OEM 21556637) – qty 1
- Screw (PAI 840001, OEM 421GC266M3) – qty 2
Fits: 2008 Mack MP8.





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