View 1 Photo View 0 Videos Allison 4500RDS Transmission for a 2012 Peterbilt 384 $2,995 USD 4500RDS GEN 4 CORE TRANS ASSEMBLY/ HAD WATER IN OIL, Serial#: 6610316908, Core Charge: 1000, Engine Make: Cummins, Engine Model: ISL ConditionUsedEngine ModelCummins ISLFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part Number4500Stock Number82623-17 MLS Number12281486CategoryTransmissions Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Cummins ISL Engine for a 2012 Peterbilt 384 Contact for price CORE NATURAL GAS ENGINE ASSEMBLY/ UNKNOWN PROBLEMS., Serial#: 73199262, Horse Power: 320, ARR/CPL: 3519, Casting#: NA ConditionUsedCPL/ARR3519Horse Power320 HPFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberISL-G CM2180Stock Number82623-14 MLS Number12281483CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DSP40 Front Differential for a 2012 Peterbilt 384 $1,195 USD DSP40 5.29 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 350, Ratio: 5.29 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberDSP40Stock Number82623-12 MLS Number12281481CategoryDifferentials, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Steering Column $300 USD GOOD USED NON- TILT STEERING COLUMN ASSEMBLY. HAS WHEEL BUT NO CENTER HORN PAD, Engine Make: Cummins, Engine Model: ISL ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberNAStock Number82623-6 MLS Number12281476CategorySteering Columns Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DSP40 Front Axle Housing for a 2012 Peterbilt 384 $1,295 USD GOOD USED FRONT HOUSING ASSEMBLY, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberFLEXAIRStock Number82623-5 MLS Number12281475CategoryAxle Housings, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Used 2012 Peterbilt 384 Daycab Air Ride Assembly $450 USD GOOD USED DAYCAB AIR RIDE ASSEMBLY, Serial#: NA, Casting#: NA ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberNAStock Number82623-3 MLS Number12281473CategoryExterior Misc. Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Left Spindle $450 USD GOOD USED SPINDLE ASSEMBLY, Capacity: 12000, Serial#: NA, Hub Bolts: 10, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012SideLEFTCapacity12000Part Number971873Stock Number82623-2 MLS Number12281472CategorySpindles / Knuckles Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Right Spindle $450 USD GOOD USED SPINDLE ASSEMBLY, Capacity: 12000, Serial#: NA, Hub Bolts: 10, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012SideRIGHTCapacity12000Part Number971887Stock Number82623-1 MLS Number12281471CategorySpindles / Knuckles Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Oil Pan Gasket for 3116/3126/C7 Engines, Part # 166-2905 $50 USD NEW OIL PAN GASKET FOR CAT 3116, 3126, AND C7 ENGINES. SEAL-INTEGRA METAL/RUBBER., Serial#: NA ConditionNewPart Number166-2905Stock Number166-2905 MLS Number12281467CategoryEngine Miscellaneous Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2018 Western Star 5700 Right Fuel Tank $450 USD USED RH 120 GAL FUEL TANK, FEW SCRAPES ON BOTTOM, Capacity: 120 GAL, Dimensions: 25 X 56, Material: Aluminum, Fuel Tank Shape: ROUND ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018SideRIGHTCapacity120 GALStock Number82823-19 MLS Number12281466CategoryFuel Tanks (Truck) Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 DPF Filter $2,500 USD USED DPF ASSY 90 DAY WARRANTY ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-18 MLS Number12281465CategoryDiesel Particulate Filters (DPF) Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 DEF Tank $495 USD USED DEF TANK ASSY, Engine Make: Detroit, Engine Model: DD15 ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-16 MLS Number12281463CategoryDiesel Exhaust Fluid (DEF) Tanks Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Radiator $995 USD USED COOLING PACK, DD15, AUTO TRANS, WILL PRESSURE TEST, 90 DAY WARRANTY, Engine Make: Detroit, Engine Model: DD15, With Frame: true ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-15 MLS Number12281462CategoryRadiators Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Radiator Overflow Bottle / Surge Tank $150 USD GOOD USED OVERFLOW BOTTLE ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-12 MLS Number12281459CategoryRadiator Overflow Bottles / Surge Tanks Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Heater / AC Temp Control $395 USD USED HEATER CONTROL ASSY ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-8 MLS Number12349330CategoryHeater / AC Climate Control Parts Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Instrument Panel Cluster $650 USD USED INSTRUMENT CLUSTER DT12 AUTO TRANS, Engine Make: Detroit, Engine Model: DD15 ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-7 MLS Number12281455CategoryInstrument Panel Clusters Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Steering Column $500 USD USED STEERING COLUMN DD15, DT12 AUTO, Engine Make: Detroit, Engine Model: DD15 ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-6 MLS Number12281454CategorySteering Columns Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2018 Western Star 5700 Left Fuel Tank $550 USD USED LH 120 GAL FUEL TANK, Capacity: 120 GAL, Dimensions: 25 X 56, Material: Aluminum, Fuel Tank Shape: ROUND ConditionUsedFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018SideLEFTCapacity120 GALStock Number82823-5 MLS Number12281453CategoryFuel Tanks (Truck) Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Axle Alliance ART400-4 Rear Differential for a 2018 Western Star 5700 $1,795 USD ART400-4 3.08 LOCKER INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 3.08 ConditionUsedRear End3.08 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-4 MLS Number12281452CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Axle Alliance ART400-4 Front Differential for a 2018 Western Star 5700 $2,795 USD ART400-4 3.08 LOCKER INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 3.08 ConditionUsedRear End3.08 ratioFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-3 MLS Number12281451CategoryDifferentials, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Detroit DD15 Engine for a 2018 Western Star 5700 $11,495 USD DD15 505HP WILL TEST RUN, CHECK RODS AND BEARINGS, 180 DAY WARRANTY BLOCK HEAD CRANK, Serial#: 472910S0502901, Horse Power: 505 ConditionUsedHorse Power505 HPFits To Make(s)Western StarFits To Model(s)5700Will Fit Year(s)2018Stock Number82823-1 MLS Number12281449CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Battery Box $300 USD USED PASSENGER SIDE TOOL BOX ASSEMBLY. BOTTOM STEP BENT/ FRONT BENT UP., Material: Aluminum ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberNAStock Number82523-1 MLS Number12281447CategoryBattery Boxes / Trays Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Radiator $895 USD GOOD USED RADIATOR ASSEMBLY/ WILL PRESSURE CHECK. 90 DAY WARRANTY, Dimensions: NA, Engine Make: Cummins, Engine Model: ISL, Fill Location: NA ConditionUsedEngine ModelCummins ISLFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Part NumberNAStock Number82523-18 MLS Number12281444CategoryRadiators Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2012 Peterbilt 384 Front Axle Assembly $1,295 USD GOOD USED AXLE OR PARTS, Capacity: 12000, Hub Bolts: 10, Brake Type: DRUM, Axle Make: EATON ConditionUsedFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Capacity12000Stock Number82523-17 MLS Number12281443CategoryAxle Assemblies, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Cummins ISL Engine for a 2012 Peterbilt 384 $8,995 USD GOOD USED ENGINE ASSEMBLY/ LNG /NATURAL GAS 180 DAY WARRANTY ON HEAD BLOCK CRANK. BEARINGS WILL BE INSPECTED, Serial#: GET, Horse Power: 320 ConditionUsedHorse Power320 HPFits To Make(s)PeterbiltFits To Model(s)384Will Fit Year(s)2012Stock Number82523-16 MLS Number12281442CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info