Home Peterbilt 378 Parts & Accessories

Peterbilt 378 Parts & Accessories

Filters

In stock Remove filter
Clear all

In stock (105)
Out of stock (60)

$ From

$ To

Blue Bird_Commercial Bus (25)
Blue Bird_Wanderlodge (27)
Crane Carrier_Drill Rig (28)
Crane Carrier_Equipment Carrier (17)
Crane Carrier_Low Entry (36)
Ford_A9513 (24)
Ford_AT9513 (24)
Ford_AT9522 (22)
Freightliner_Argosy (53)
Freightliner_Cascadia (29)
Freightliner_Century Class (44)
Freightliner_Classic (28)
Freightliner_Classic XL (23)
Freightliner_Columbia (59)
Freightliner_Condor (24)
Freightliner_Coronado (31)
Freightliner_FLC112 (24)
Freightliner_FLD112 (32)
Freightliner_FLD120 (44)
Freightliner_FLD120SD (21)
Freightliner_FLD132 (48)
Freightliner_M2 106 (20)
Freightliner_XC Raised Rail (20)
International_2674 (27)
International_5500i (40)
International_5600i (43)
International_5900i (34)
International_7600 (25)
International_7700 (23)
International_8100 (27)
International_8600 SBA (24)
International_9100i SBA (24)
International_9200i SBA (54)
International_9200 SBA (23)
International_9400 (21)
International_9400i SBA (55)
International_9900i (49)
International_9900i SFA (25)
International_9900ix (44)
International_LoneStar (27)
International_ProStar (33)
Kenworth_C500 (63)
Kenworth_K100E (32)
Kenworth_T300 (25)
Kenworth_T600A (68)
Kenworth_T660 (41)
Kenworth_T800 (70)
Kenworth_T2000 (68)
Kenworth_W900 (70)
Mack_CL (34)
Oshkosh Motor Truck Co._H (30)
Oshkosh Motor Truck Co._Highland (20)
Oshkosh Motor Truck Co._P (23)
Oshkosh Motor Truck Co._S (39)
Peterbilt_320 (60)
Peterbilt_330 (38)
Peterbilt_357 (94)
Peterbilt_362 (49)
Peterbilt_365 (49)
Peterbilt_367 (51)
Peterbilt_375 (30)
Peterbilt_377 (56)
Peterbilt_378 (105)
Peterbilt_379 (95)
Peterbilt_384 (44)
Peterbilt_385 (73)
Peterbilt_386 (53)
Peterbilt_387 (67)
Peterbilt_388 (55)
Peterbilt_389 (41)
Peterbilt_587 (26)
Pierce Mfg. Inc._Arrow XT (26)
Pierce Mfg. Inc._Custom (17)
Pierce Mfg. Inc._Dash (21)
Pierce Mfg. Inc._Enclosed Cab (26)
Pierce Mfg. Inc._Lance (20)
Pierce Mfg. Inc._Quantum (20)
Pierce Mfg. Inc._Velocity (24)
Roadmaster Rail_S-Monocoque (25)
Spartan Motors_Gladiator (20)
Spartan Motors_K2 (25)
Spartan Motors_K3 (21)
Sterling Truck_A9500 (42)
Sterling Truck_AT9500 (38)
Sterling Truck_Condor (25)
Sterling Truck_L9500 (39)
Sterling Truck_LT9500 (39)
Sterling Truck_LT9513 (26)
Sterling Truck_ST9500 (22)
Volvo_VNL (45)
Volvo_VNM (41)
Volvo_VT (21)
Western Star_3800 (26)
Western Star_4800 (29)
Western Star_4900 (29)
Western Star_4900EX (38)
Western Star_4900FA (55)
Western Star_4900SA (56)
Western Star_5800 (27)
Western Star_6900XD (25)

A/C Compressor Connector (1)
A/C Refrigerant Pressure Sensor (1)
Accelerator Pedal Sensor (1)
Accessory Drive Belt Tensioner Assembly (1)
Air Brake Pressure Sensor (1)
Auto Trans Speed Sensor (1)
Barometric Pressure Sensor (1)
Dash Board Air Vent (4)
Diesel Injection Control Pressure Sensor (1)
Diesel Particulate Filter (3)
Diesel Particulate Filter (DPF) Clamp (2)
Diesel Particulate Filter (DPF) Gasket (2)
Diesel Particulate Filter (DPF) Hardware Kit (1)
Door Check Strap (2)
Door Mirror Control Module (1)
Engine Camshaft Position Sensor (4)
Engine Coolant Level Sensor (1)
Engine Coolant Temperature Sensor (2)
Engine Crankshaft Position Sensor (3)
Engine Oil Drain Plug (5)
Engine Oil Drain Plug Gasket (2)
Engine Oil Filler Cap (1)
Engine Oil Pan (8)
Engine Oil Pan Gasket (1)
Engine Oil Pressure Sensor (3)
Engine Oil Temperature Sensor (2)
Engine Timing Cover (1)
Exhaust Brake Actuator (1)
Exhaust Clamp (2)
Exhaust Gas Recirculation (EGR) Cooler (1)
Exhaust Gas Recirculation (EGR) Cooler Clamp (1)
Exhaust Gas Recirculation (EGR) Cooler Gasket Kit (1)
Exhaust Gas Recirculation (EGR) Cooler Installation Kit (1)
Exhaust Gas Recirculation (EGR) Gasket Set (1)
Exhaust Gas Recirculation (EGR) Valve (2)
Exhaust Gas Recirculation (EGR) Valve Temperature Sensor (1)
Exhaust Manifold (1)
Exhaust Pipe Bellow (3)
Fuel Injector O-Ring Kit (2)
Fuel Pressure Sensor (1)
Fuel Tank Sending Unit (2)
Fuel Tank Sending Unit-Universal (1)
Fuel Tank Strap (1)
Hood Hinge Spring (1)
Hood Restraint Cable (1)
HVAC Heater Blend Door Actuator (1)
HVAC Heater Control Knob (1)
HVAC Heater Water Shut-Off Valve Actuator (2)
Interior Door Handle (2)
Manifold Absolute Pressure Sensor (2)
Multi-Function Switch (2)
Outside Door Handle (5)
Turbocharger Boost Sensor (2)
Turbocharger Outlet Gasket (1)
Turbocharger Speed Sensor (1)
Water In Fuel (WiF) Sensor (1)
Window Crank Handle (1)
Window Motor and Regulator Assembly (2)
Window Regulator (1)
Windshield Washer Nozzle (1)

Agility Autoparts (1)
Dorman-HD Solutions (100)
MotoRad (1)
Replacement (2)
Standard Motor Parts (1)

Sort by

Compare

View as

In stock Remove filter
Clear all

Compare

Engine Oil Drain Plug Gasket Dorman-HD Solutions 095-5001CD

Original price $77.91 - Original price $77.91

Original price

$77.91

$77.91 - $77.91

Current price $77.91

| /

Engine Oil Drain Plug Gasket Dorman-HD Solutions 095-5001CD

Dorman-HD Solutions

Only 1 left!

Original price $77.91 - Original price $77.91

Original price

$77.91

$77.91 - $77.91

Current price $77.91

| /

Save 0% Save %

Compare

Auto Trans Speed Sensor Dorman-HD Solutions 904-7026

Original price $153.93 - Original price $153.93

Original price

$153.93

$153.93 - $153.93

Current price $153.93

| /

Auto Trans Speed Sensor Dorman-HD Solutions 904-7026

Dorman-HD Solutions

in stock

Original price $153.93 - Original price $153.93

Original price

$153.93

$153.93 - $153.93

Current price $153.93

| /

Save 0% Save %

Compare

HVAC Heater Water Shut-Off Valve Actuator Dorman-HD Solutions 604-5103CD

Original price $73.61 - Original price $73.61

Original price

$73.61

$73.61 - $73.61

Current price $73.61

| /

HVAC Heater Water Shut-Off Valve Actuator Dorman-HD Solutions 604-5103CD

Dorman-HD Solutions

Only 1 left!

Original price $73.61 - Original price $73.61

Original price

$73.61

$73.61 - $73.61

Current price $73.61

| /

Save 0% Save %

Compare

Diesel Particulate Filter (DPF) Gasket Dorman-HD Solutions 674-9053

Original price $39.33 - Original price $39.33

Original price

$39.33

$39.33 - $39.33

Current price $39.33

| /

Diesel Particulate Filter (DPF) Gasket Dorman-HD Solutions 674-9053

Dorman-HD Solutions

in stock

Original price $39.33 - Original price $39.33

Original price

$39.33

$39.33 - $39.33

Current price $39.33

| /

Save 0% Save %

Compare

Exhaust Pipe Bellow Dorman-HD Solutions 674-5605

Original price $221.34 - Original price $221.34

Original price

$221.34

$221.34 - $221.34

Current price $221.34

| /

Exhaust Pipe Bellow Dorman-HD Solutions 674-5605

Dorman-HD Solutions

in stock

Original price $221.34 - Original price $221.34

Original price

$221.34

$221.34 - $221.34

Current price $221.34

| /

Save 0% Save %

Compare

Window Motor and Regulator Assembly Dorman-HD Solutions 741-5402

Original price $224.12 - Original price $224.12

Original price

$224.12

$224.12 - $224.12

Current price $224.12

| /

Window Motor and Regulator Assembly Dorman-HD Solutions 741-5402

Dorman-HD Solutions

Only 2 left!

Original price $224.12 - Original price $224.12

Original price

$224.12

$224.12 - $224.12

Current price $224.12

| /

Save 0% Save %

Compare

Hood Restraint Cable Dorman-HD Solutions 924-5402

Original price $27.12 - Original price $27.12

Original price

$27.12

$27.12 - $27.12

Current price $27.12

| /

Hood Restraint Cable Dorman-HD Solutions 924-5402

Dorman-HD Solutions

in stock

Original price $27.12 - Original price $27.12

Original price

$27.12

$27.12 - $27.12

Current price $27.12

| /

Save 0% Save %

Compare

Engine Oil Drain Plug Dorman-HD Solutions 090-5001CD

Original price $30.18 - Original price $30.18

Original price

$30.18

$30.18 - $30.18

Current price $30.18

| /

Engine Oil Drain Plug Dorman-HD Solutions 090-5001CD

Dorman-HD Solutions

in stock

Original price $30.18 - Original price $30.18

Original price

$30.18

$30.18 - $30.18

Current price $30.18

| /

Save 0% Save %

Compare

Engine Oil Temperature Sensor Dorman-HD Solutions 904-7109

Original price $157.60 - Original price $157.60

Original price

$157.60

$157.60 - $157.60

Current price $157.60

| /

Engine Oil Temperature Sensor Dorman-HD Solutions 904-7109

Dorman-HD Solutions

in stock

Original price $157.60 - Original price $157.60

Original price

$157.60

$157.60 - $157.60

Current price $157.60

| /

Save 0% Save %

Compare

Engine Oil Pressure Sensor Dorman-HD Solutions 904-7016

Original price $142.32 - Original price $142.32

Original price

$142.32

$142.32 - $142.32

Current price $142.32

| /

Engine Oil Pressure Sensor Dorman-HD Solutions 904-7016

Dorman-HD Solutions

in stock

Original price $142.32 - Original price $142.32

Original price

$142.32

$142.32 - $142.32

Current price $142.32

| /

Save 0% Save %

Compare

Fuel Tank Sending Unit Dorman-HD Solutions 285-5402

Original price $196.92 - Original price $196.92

Original price

$196.92

$196.92 - $196.92

Current price $196.92

| /

Fuel Tank Sending Unit Dorman-HD Solutions 285-5402

Dorman-HD Solutions

in stock

Original price $196.92 - Original price $196.92

Original price

$196.92

$196.92 - $196.92

Current price $196.92

| /

Save 0% Save %

Compare

Diesel Particulate Filter (DPF) Clamp Dorman-HD Solutions 674-7022

Original price $57.65 - Original price $57.65

Original price

$57.65

$57.65 - $57.65

Current price $57.65

| /

Diesel Particulate Filter (DPF) Clamp Dorman-HD Solutions 674-7022

Dorman-HD Solutions

in stock

Original price $57.65 - Original price $57.65

Original price

$57.65

$57.65 - $57.65

Current price $57.65

| /

Save 0% Save %

Compare

Exhaust Pipe Bellow Dorman-HD Solutions 674-6018

Original price $443.02 - Original price $443.02

Original price

$443.02

$443.02 - $443.02

Current price $443.02

| /

Exhaust Pipe Bellow Dorman-HD Solutions 674-6018

Dorman-HD Solutions

Only 2 left!

Original price $443.02 - Original price $443.02

Original price

$443.02

$443.02 - $443.02

Current price $443.02

| /

Save 0% Save %

Compare

Engine Oil Pan Dorman-HD Solutions 264-5006

Original price $722.67 - Original price $722.67

Original price

$722.67

$722.67 - $722.67

Current price $722.67

| /

Engine Oil Pan Dorman-HD Solutions 264-5006

Dorman-HD Solutions

in stock

Original price $722.67 - Original price $722.67

Original price

$722.67

$722.67 - $722.67

Current price $722.67

| /

Save 0% Save %

Compare

Manifold Absolute Pressure Sensor Dorman-HD Solutions 904-7037

Original price $170.12 - Original price $170.12

Original price

$170.12

$170.12 - $170.12

Current price $170.12

| /

Manifold Absolute Pressure Sensor Dorman-HD Solutions 904-7037

Dorman-HD Solutions

in stock

Original price $170.12 - Original price $170.12

Original price

$170.12

$170.12 - $170.12

Current price $170.12

| /

Save 0% Save %

Compare

Engine Oil Pan Dorman-HD Solutions 264-5097

Original price $472.65 - Original price $472.65

Original price

$472.65

$472.65 - $472.65

Current price $472.65

| /

Engine Oil Pan Dorman-HD Solutions 264-5097

Dorman-HD Solutions

in stock

Original price $472.65 - Original price $472.65

Original price

$472.65

$472.65 - $472.65

Current price $472.65

| /

Save 0% Save %

Compare

Dash Board Air Vent Dorman-HD Solutions 216-5407CD

Original price $45.97 - Original price $45.97

Original price

$45.97

$45.97 - $45.97

Current price $45.97

| /

Dash Board Air Vent Dorman-HD Solutions 216-5407CD

Dorman-HD Solutions

in stock

Original price $45.97 - Original price $45.97

Original price

$45.97

$45.97 - $45.97

Current price $45.97

| /

Save 0% Save %

Compare

Water In Fuel (WiF) Sensor Dorman-HD Solutions 904-7242

Original price $87.77 - Original price $87.77

Original price

$87.77

$87.77 - $87.77

Current price $87.77

| /

Water In Fuel (WiF) Sensor Dorman-HD Solutions 904-7242

Dorman-HD Solutions

in stock

Original price $87.77 - Original price $87.77

Original price

$87.77

$87.77 - $87.77

Current price $87.77

| /

Save 0% Save %

Compare

Diesel Particulate Filter Dorman-HD Solutions 674-2017

Original price $4,941.66 - Original price $4,941.66

Original price

$4,941.66

$4,941.66 - $4,941.66

Current price $4,941.66

| /

Diesel Particulate Filter Dorman-HD Solutions 674-2017

Dorman-HD Solutions

in stock

Original price $4,941.66 - Original price $4,941.66

Original price

$4,941.66

$4,941.66 - $4,941.66

Current price $4,941.66

| /

Save 0% Save %

Compare

Diesel Particulate Filter (DPF) Hardware Kit Dorman-HD Solutions 674-9034

Original price $150.83 - Original price $150.83

Original price

$150.83

$150.83 - $150.83

Current price $150.83

| /

Diesel Particulate Filter (DPF) Hardware Kit Dorman-HD Solutions 674-9034

Dorman-HD Solutions

in stock

Original price $150.83 - Original price $150.83

Original price

$150.83

$150.83 - $150.83

Current price $150.83

| /

Save 0% Save %

Compare

Outside Door Handle Dorman-HD Solutions 760-5401

Original price $65.97 - Original price $65.97

Original price

$65.97

$65.97 - $65.97

Current price $65.97

| /

Outside Door Handle Dorman-HD Solutions 760-5401

Dorman-HD Solutions

Only 1 left!

Original price $65.97 - Original price $65.97

Original price

$65.97

$65.97 - $65.97

Current price $65.97

| /

Save 0% Save %

Compare

Barometric Pressure Sensor Dorman-HD Solutions 904-7126

Original price $116.85 - Original price $116.85

Original price

$116.85

$116.85 - $116.85

Current price $116.85

| /

Barometric Pressure Sensor Dorman-HD Solutions 904-7126

Dorman-HD Solutions

in stock

Original price $116.85 - Original price $116.85

Original price

$116.85

$116.85 - $116.85

Current price $116.85

| /

Save 0% Save %

Compare

Exhaust Clamp Dorman-HD Solutions 904-0261

Original price $34.44 - Original price $34.44

Original price

$34.44

$34.44 - $34.44

Current price $34.44

| /

Exhaust Clamp Dorman-HD Solutions 904-0261

Dorman-HD Solutions

in stock

Original price $34.44 - Original price $34.44

Original price

$34.44

$34.44 - $34.44

Current price $34.44

| /

Save 0% Save %

Compare

Dash Board Air Vent Dorman-HD Solutions 216-5408

Original price $20.69 - Original price $20.69

Original price

$20.69

$20.69 - $20.69

Current price $20.69

| /

Dash Board Air Vent Dorman-HD Solutions 216-5408

Dorman-HD Solutions

Only 1 left!

Original price $20.69 - Original price $20.69

Original price

$20.69

$20.69 - $20.69

Current price $20.69

| /

Save 0% Save %

Sort by

Peterbilt 378 Parts & Accessories

Filters

Engine Oil Drain Plug Gasket Dorman-HD Solutions 095-5001CD

Auto Trans Speed Sensor Dorman-HD Solutions 904-7026

HVAC Heater Water Shut-Off Valve Actuator Dorman-HD Solutions 604-5103CD

Diesel Particulate Filter (DPF) Gasket Dorman-HD Solutions 674-9053

Exhaust Pipe Bellow Dorman-HD Solutions 674-5605

Window Motor and Regulator Assembly Dorman-HD Solutions 741-5402

Hood Restraint Cable Dorman-HD Solutions 924-5402

Engine Oil Drain Plug Dorman-HD Solutions 090-5001CD

Engine Oil Temperature Sensor Dorman-HD Solutions 904-7109

Engine Oil Pressure Sensor Dorman-HD Solutions 904-7016

Fuel Tank Sending Unit Dorman-HD Solutions 285-5402

Diesel Particulate Filter (DPF) Clamp Dorman-HD Solutions 674-7022

Exhaust Pipe Bellow Dorman-HD Solutions 674-6018

Engine Oil Pan Dorman-HD Solutions 264-5006

Manifold Absolute Pressure Sensor Dorman-HD Solutions 904-7037

Engine Oil Pan Dorman-HD Solutions 264-5097

Dash Board Air Vent Dorman-HD Solutions 216-5407CD

Water In Fuel (WiF) Sensor Dorman-HD Solutions 904-7242

Diesel Particulate Filter Dorman-HD Solutions 674-2017

Diesel Particulate Filter (DPF) Hardware Kit Dorman-HD Solutions 674-9034

Outside Door Handle Dorman-HD Solutions 760-5401

Barometric Pressure Sensor Dorman-HD Solutions 904-7126

Exhaust Clamp Dorman-HD Solutions 904-0261

Dash Board Air Vent Dorman-HD Solutions 216-5408

Added to your cart:

Compare products