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The Cummins 4380750 lock nut can be used on KTA50 and QSK50 applications.
This item is a genuine Cummins part shipped with a 12-month factory warranty.
COMPRESSION SPRING
Genuine Cummins Part
$51.25
O-RING - KTA50 / QSK50 / KTA38 / QSK38
$5.00
PLUNGER - KTA38 / QSK38 / KTA50 / QSK50
$372.85
