View 17 Photos View 0 Videos 2006 Used Peterbilt 378 Tool Box $350 USD Used 378 Tool Box, Side: Either, Width: 36.00", Height: 21.50", Material: Aluminum, Steps: Yes, Latch/Strap: Cam-Over Latch ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006SideEitherStock Number693-10349 MLS Number14473609CategoryTool Boxes Last Updated8/6/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Used 1993 Peterbilt 378 Tachometer Gauge $175 USD GOOD USED TACHOMETER GAUGE., Gauge Type: Tachometer ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)1993Stock Number41226-21 MLS Number14330559CategoryGauges Last Updated8/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Peterbilt 378 Left Bracket $225 USD 01-49257L KNEE-ENGINE SPRT FRONT LH Quantity4ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378SideLeftStock Number107733 MLS Number13119279CategoryBrackets, Misc. Last Updated8/1/2026 LocationSalt Lake City, UT, US Sold ByVriens Truck Parts (801) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Peterbilt 378 Right Bracket $205 USD 01-49257R KNEE-ENGINE SPRT FRONT RH ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378SideRightStock Number4570 MLS Number12874286CategoryBrackets, Misc. Last Updated8/1/2026 LocationSalt Lake City, UT, US Sold ByVriens Truck Parts (801) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2005 Peterbilt 378 Front Axle Assembly $1,495 USD GOOD USED AXLE ASSEMBLY OR PARTS, Capacity: 12000, Serial#: 35118780, Hub Bolts: 10, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2005Capacity12000Part NumberE1202IStock Number101424-8 MLS Number13212632CategoryAxle Assemblies, Front Last Updated7/31/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 1994 Peterbilt 378 Steering Column $395 USD GOOD USED STEERING COLUMN., Engine Make: Caterpillar, Engine Model: 3406B ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)1994Stock Number71326-10 MLS Number14509628CategorySteering Columns Last Updated7/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 1994 Peterbilt 378 Left Door $450 USD GOOD USED LH DOOR ASSY, MANUAL WINDOW. HAS A DENT ON BOTTOM, Window Type: Manual ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)1994SideLEFTStock Number71326-7 MLS Number14509625CategoryDoors Last Updated7/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2006 Used Peterbilt 378 SET, Mud Flap Hangers $258 USD Used 378 SET, Mud Flap Hangers, Dimensions: 8.00"x30.25", Side: Set, Type: Straight Type ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006SideSetStock Number727-10630 MLS Number14495219CategoryMud Flap Hangers Last Updated7/21/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2006 Used Peterbilt 378 Front Closing Crossmember $270 USD Used 378 Front Closing Crossmember, W x H x L: 15.25"x7.25"x30.50" ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock Number648-13228 MLS Number14495114CategoryCrossmembers Last Updated7/21/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2006 Used Peterbilt 378 Engine Crossmember $250 USD Used 378 Engine Crossmember, W x H x L: 4.50"x9.50"x27.00" ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock Number648-13229 MLS Number14495113CategoryCrossmembers Last Updated7/21/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2006 Used Peterbilt 378 Center Crossmember $361 USD Used 378 Center Crossmember, W x H x L: 9.75"x8.50"x32.50" Quantity3ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock Number648-13230 MLS Number14495112CategoryCrossmembers Last Updated7/21/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2006 Used Peterbilt 378 Center Crossmember $361 USD Used 378 Center Crossmember, W x H x L: 9.75"x8.25"x32.75" ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Part Number0147626002Stock Number648-13231 MLS Number14495111CategoryCrossmembers Last Updated7/21/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 1999 Peterbilt 378 Right Front Door Assembly $350 USD 1999 Peterbilt 378 Passenger Side Door Assembly, Manual Window, w/ Mirror. ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378SideRightStock Number1973-10 MLS Number13897891CategoryDoor Assemblies, Front Last Updated7/16/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Used Peterbilt 378 Lower Hood Roller Bracket, Part # 13-04387 $140 USD BRACKET-ROLLER LOWER HOOD STL 13-04387 Quantity14ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378Stock Number102665 MLS Number12770193CategoryHood Parts Last Updated7/14/2026 LocationSalt Lake City, UT, US Sold ByVriens Truck Parts (801) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Peterbilt 378 Tilt Assist Spring Hood Bracket, Part # 13-03506 $125 USD BRACKET-TILT ASSIST SPR HOOD 13-03506 Quantity6ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378Stock Number102664 MLS Number12770192CategoryHood Parts Last Updated7/14/2026 LocationSalt Lake City, UT, US Sold ByVriens Truck Parts (801) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2006 Used Peterbilt 378 Oil Tank $1,000 USD Used 378 Oil Tank, W x H x L: 25.00" x 25.00" x 36.00" ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock Number692-10145 MLS Number14475499CategoryHydraulic Tanks Last Updated7/10/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos 2006 Used Peterbilt 378 Battery Box $195 USD Used 378 Battery Box, Side: Driver, Tray Material: Aluminum, Battery Capacity: 4, Width: 29.50", Height: 13.00", Steps: No, Latch/Strap: N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006SideDriverStock Number600-12557 MLS Number14475498CategoryBattery Boxes / Trays Last Updated7/10/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2006 Used Peterbilt 378 SET, Full Tandem Fenders $1,500 USD Used 378 SET, Full Tandem Fenders, Side: Set, Material: Steel ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006SideSetStock Number608-14025 MLS Number14475497CategoryFenders Last Updated7/10/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 1999 Peterbilt 378 Cooling Assembly Contact for price Cooling Assembly, Complete, Includes RAD, CAC, and Condenser ConditionUsedEngine Model3406EFits To Make(s)PETERBILTFits To Model(s)378Stock Number1973-6 MLS Number14291274CategoryCooling Assemblies (Rad., Cond., ATAAC) Last Updated7/10/2026 LocationDinuba, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos Used 2006 Peterbilt 378 60.5" Complete White Hood $3,763 USD (USED) Peterbilt 378 SFA/SBA: SFA Color: WHITE Type: COMPLETE Length: 60.5 COMPLETE HOOD. CRACKS ON PASSENGER SIDE FENDER, BOTH FENDERS HAVE CHIPS ON EDGES, STRESS CRACKING ALONG TOP OF HOOD... ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Stock Number25795626 MLS Number13586083CategoryHoods Last Updated6/26/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2005 Peterbilt 378 Fuel Tank $570 USD (USED) Peterbilt 378 Gallons: 89 Length: 40 Width/Dia: 26 Height: - SHALLOW DENTS NEAR SEAM UNDER STRAPS ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Stock Number25717431 MLS Number13236041CategoryFuel Tanks (Truck) Last Updated6/25/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos Used 1997 Peterbilt 378 SFA Red Complete Hood 60.5" Length $3,763 USD (USED) Peterbilt 378 SFA/SBA: SFA Color: RED Type: COMPLETE Length: 60.5 COMPLETE RH HEADLIGHT CRACKED BOTTOM OF LH FENDER CRACKED RH WHEEL WELL CRACKED ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Stock Number25708931 MLS Number13193584CategoryHoods Last Updated6/26/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 1997 Peterbilt 378 Air Cleaner / Air Filter Housing $175 USD (USED) Peterbilt 378 Size: 12 Material: STEEL Style: DONALDSON Location: INTERNAL ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Stock Number25709090 MLS Number13195489CategoryAir Cleaners / Air Filter Housings Last Updated6/19/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2006 Peterbilt 378 Right Door $395 USD RH DOOR ASSY PANEL IS BURNT, GOOD SHELL., Window Type: Other ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006SideRIGHTStock Number11026-18 MLS Number14424479CategoryDoors Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2005 Peterbilt Suspension for a Peterbilt 378 $1,450 USD REAR REAR SUSPENSION, PETERBILT AIR LEAF, ROCKWELL RR20-145, 3.42 RATIO, DIFFERENTIAL WILL HAVE TO BE INSPECTED ConditionUsedFits To Make(s)PETERBILTFits To Model(s)378Capacity20KStock Number6132 MLS Number13181905CategorySuspensions Last Updated6/12/2026 LocationSalt Lake City, UT, US Sold ByVriens Truck Parts (801) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info