3 0 2014 Eaton-Spicer DSP40RTBD Cutoff for a Peterbilt FLEX AIR $3,000.15 USD USED PETERBILT FLEX AIR RIDE CUT OFF TANDEM AXLE SUSPENSION OUT OF A 2014 PETERBILT 579 WITH EATON-SPICER DSP40 AXLE HOUSINGS. ConditionUsedSuspensionFlex AirFits To Make(s)PETERBILTFits To Model(s)FLEX AIRCapacity40000Stock Number2281563 MLS Number12203121CategoryCutoffs Last Updated11/8/2025 LocationWykoff, MN, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info