1991 Peterbilt 378 Parts

23 parts available. Compare prices across multiple retailers.

904-7692Dorman
904-7692 HD Solutions Series Accelerator Pedal Position Sensor - Direct Fit, Sold Individually - Dorman 904-7692 Accelerator Pedal Sensor Compatible with Select Models - Dorman Accelerator Pedal Sensor 904-7692 - DORMAN Throttle Position Sensor for Kenworth - Throttle Position Sensor
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Title: 904-7692 HD Solutions Series Accelerator Pedal Position Sensor - Direct Fit, Sold Individually - Dorman 904-7692 Accelerator Pedal Sensor Compatible with Select Models - Dorman Accelerator Pedal Sensor 904-7692 - DORMAN Throttle Position Sensor for Kenworth - Throttle Position Sensor

Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts

4.3
(8 reviews)
095-5001CDDorman
DORMAN Rubber Oil Drain Plug Gasket

Title: DORMAN Rubber Oil Drain Plug Gasket

Stores: Fleetpride

760-5120Dorman
Dorman 760-5120 Window Crank Handle Compatible with Select Peterbilt Models, Chrome - Dorman Window Handle 760-5120 - Window Handle - Window Regulator Handle - Crank Handle - Window Crank Lever - Window Lever - Worn or broken window crank handle leading to difficult window operation? Made of durable material for reliable performance, this window crank handle replaces the original equipment handle. - Peterbilt 362 2010-08, Peterbilt 362 2006-05, Peterbilt 378 2003-90, Peterbilt 379 2003-90 - Window Regulator Handle
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Title: Dorman 760-5120 Window Crank Handle Compatible with Select Peterbilt Models, Chrome - Dorman Window Handle 760-5120 - Window Handle - Window Regulator Handle - Crank Handle - Window Crank Lever - Window Lever - Worn or broken window crank handle leading to difficult window operation? Made of durable material for reliable performance, this window crank handle replaces the original equipment handle. - Peterbilt 362 2010-08, Peterbilt 362 2006-05, Peterbilt 378 2003-90, Peterbilt 379 2003-90 - Window Regulator Handle

Stores: Advance, Amazon, Autozone, Finditparts

264-5056Dorman
264-5056 Steel Oil Pan, HD Solutions Series - Dorman 264-5056 Rear Sump Engine Oil Pan Compatible with Select Models - DORMAN Engine Oil Pan - Black - Dorman Oil Pan 264-5056 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Rear Sump, 44 Quart
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Title: 264-5056 Steel Oil Pan, HD Solutions Series - Dorman 264-5056 Rear Sump Engine Oil Pan Compatible with Select Models - DORMAN Engine Oil Pan - Black - Dorman Oil Pan 264-5056 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Rear Sump, 44 Quart

Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts

5.0
(2 reviews)
264-5006Dorman
Dorman 264-5006 Front Sump Engine Oil Pan Compatible with Select Models - DORMAN Engine Oil Pan for Cummins - Black - Dorman Oil Pan 264-5006 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 36 Quart
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Title: Dorman 264-5006 Front Sump Engine Oil Pan Compatible with Select Models - DORMAN Engine Oil Pan for Cummins - Black - Dorman Oil Pan 264-5006 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 36 Quart

Stores: Advance, Amazon, Fleetpride, Autozone, Finditparts

090-5004CDDORMAN
Dorman 090-5004CD Oil Drain Plug Compatible with Select Models - DORMAN 3/4" Engine Oil Drain Plug - Magnetic Engine Oil Drain Plug: 3/4 x 14 Thread, 0.5 " Head, 1 Pack - Oil Drain Plug
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Title: Dorman 090-5004CD Oil Drain Plug Compatible with Select Models - DORMAN 3/4" Engine Oil Drain Plug - Magnetic Engine Oil Drain Plug: 3/4 x 14 Thread, 0.5 " Head, 1 Pack - Oil Drain Plug

Stores: Advance, Amazon, Fleetpride, Finditparts

4.3
(20 reviews)
904-7363Dorman
Dorman 904-7363 Engine Coolant Level Sensor Compatible with Select Models - Dorman - HD Solutions Engine Coolant Level Sensor 904-7363 - Low Coolant Level Sensor
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Title: Dorman 904-7363 Engine Coolant Level Sensor Compatible with Select Models - Dorman - HD Solutions Engine Coolant Level Sensor 904-7363 - Low Coolant Level Sensor

Stores: Advance, Amazon, Autozone, Finditparts

2.0
(2 reviews)
978-5411Dorman
Dorman 978-5411 Multifunction Switch Compatible with Select Peterbilt Models - Dorman - HD Solutions Multi-Function Switch 978-5411 - DORMAN Multi-Function Switch for Peterbilt - Multifunction Switch
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Title: Dorman 978-5411 Multifunction Switch Compatible with Select Peterbilt Models - Dorman - HD Solutions Multi-Function Switch 978-5411 - DORMAN Multi-Function Switch for Peterbilt - Multifunction Switch

Stores: Advance, Amazon, Fleetpride, Autozone, Finditparts

4.3
(56 reviews)
938-5407CDDorman
938-5407CD Hood Hinge Spring - Sold individually - Dorman 938-5407CD Heavy Duty Hood Spring Compatible with Select Peterbilt Models,Black - DORMAN Heavy Duty Hood Spring - Heavy Duty Hood Spring - HOOD SPRING - Heavy Duty Hood Spring - Bonnet Hinge Spring - This hood hinge spring is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance. - Peterbilt 357 2006-87, Peterbilt 377 2006-87, Peterbilt 378 2006-87, Peterbilt 379 2006-03
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Title: 938-5407CD Hood Hinge Spring - Sold individually - Dorman 938-5407CD Heavy Duty Hood Spring Compatible with Select Peterbilt Models,Black - DORMAN Heavy Duty Hood Spring - Heavy Duty Hood Spring - HOOD SPRING - Heavy Duty Hood Spring - Bonnet Hinge Spring - This hood hinge spring is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance. - Peterbilt 357 2006-87, Peterbilt 377 2006-87, Peterbilt 378 2006-87, Peterbilt 379 2006-03

Stores: Carparts, Advance, Amazon, Fleetpride, Finditparts

4.3
(30 reviews)
901-0003Dorman
901-0003 Neutral Safety Switch - Clutch Switch - Clutch Switch - Clutch Safety Switch - This clutch starter safety switch is designed to match the appearance and function of the original switch on specified applications. Made of quality materials, it is engineered for reliable performance and durability. - Peterbilt 378 2007-87, Peterbilt 379 2007-86 - Dorman 901-0003 Clutch Switch Compatible with Select Peterbilt Models
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Title: 901-0003 Neutral Safety Switch - Clutch Switch - Clutch Switch - Clutch Safety Switch - This clutch starter safety switch is designed to match the appearance and function of the original switch on specified applications. Made of quality materials, it is engineered for reliable performance and durability. - Peterbilt 378 2007-87, Peterbilt 379 2007-86 - Dorman 901-0003 Clutch Switch Compatible with Select Peterbilt Models

Stores: Carparts, Advance, Amazon, Finditparts

4.3
(13 reviews)
674-7012Dorman
DORMAN 5" Exhaust V-Band Clamp - Dorman 674-7012 Exhaust Clamp Compatible with Select Models - Dorman Exhaust Clamp 674-7012 - Exhaust V-Band Clamp
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Title: DORMAN 5" Exhaust V-Band Clamp - Dorman 674-7012 Exhaust Clamp Compatible with Select Models - Dorman Exhaust Clamp 674-7012 - Exhaust V-Band Clamp

Stores: Advance, Amazon, Fleetpride, Autozone, Finditparts

978-5412Dorman
Dorman 978-5412 Multifunction Switch Compatible with Select Peterbilt Models - DORMAN Multi-Function Switch for Peterbilt - Multifunction Switch
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Title: Dorman 978-5412 Multifunction Switch Compatible with Select Peterbilt Models - DORMAN Multi-Function Switch for Peterbilt - Multifunction Switch

Stores: Advance, Amazon, Fleetpride, Finditparts

090-5001CDDorman
DORMAN 0.87" Oil Drain Plug for Kenworth - Silver - Dorman 090-5001CD Oil Drain Plug Compatible with Select Models - Dorman OIL DRAIN - Magnetic Engine Oil Drain Plug: 1-1/8 x 12 Thread, 1.5 " Head, 1 Pack - Oil Drain Plug
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Title: DORMAN 0.87" Oil Drain Plug for Kenworth - Silver - Dorman 090-5001CD Oil Drain Plug Compatible with Select Models - Dorman OIL DRAIN - Magnetic Engine Oil Drain Plug: 1-1/8 x 12 Thread, 1.5 " Head, 1 Pack - Oil Drain Plug

Stores: Truckpro, Advance, Amazon, Fleetpride, Finditparts

5.0
(2 reviews)
090-5010CDDorman
Dorman 090-5010CD Engine Oil Drain Plug - 1-1/8 x 12 Compatible with Select Models - DORMAN 1-1/8" x 12 mm Engine Oil Drain Plug - Dorman Engine Oil Drain Plug 090-5010CD - Engine Oil Drain Plug - 1-1/8 x 12 - Oil Drain Plug - Engine Oil Drain Plug - 1-1/8 x 12 - Oil Pan Drain Plug - This replacement engine oil drain plug is a direct replacement for a damaged or worn original equipment drain plug, precisely matching the thread pitch to ensure a quality seal. - 2006-81
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Title: Dorman 090-5010CD Engine Oil Drain Plug - 1-1/8 x 12 Compatible with Select Models - DORMAN 1-1/8" x 12 mm Engine Oil Drain Plug - Dorman Engine Oil Drain Plug 090-5010CD - Engine Oil Drain Plug - 1-1/8 x 12 - Oil Drain Plug - Engine Oil Drain Plug - 1-1/8 x 12 - Oil Pan Drain Plug - This replacement engine oil drain plug is a direct replacement for a damaged or worn original equipment drain plug, precisely matching the thread pitch to ensure a quality seal. - 2006-81

Stores: Amazon, Fleetpride, Autozone, Finditparts

760-5426Dorman
760-5426 Front, Driver Side Chrome Exterior Door Handle, With Key Hole, HD Solutions Series - DOOR HANDLE - Exterior Door Handle Left - Outside Door Handle - Want a new exterior door handle that matches the original, for far less than going back to the dealership? This replacement door handle was engineered to match the fit and appearance of the stock handle on specific vehicle years, makes and models. - Peterbilt 2007-87 - Dorman 760-5426 Cab Door (Driver Side) Exterior Door Handle Compatible with Select Peterbilt Models, Chrome - Dorman Exterior Door Handle 760-5426 - DORMAN Exterior Door Handle Left for Peterbilt
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Title: 760-5426 Front, Driver Side Chrome Exterior Door Handle, With Key Hole, HD Solutions Series - DOOR HANDLE - Exterior Door Handle Left - Outside Door Handle - Want a new exterior door handle that matches the original, for far less than going back to the dealership? This replacement door handle was engineered to match the fit and appearance of the stock handle on specific vehicle years, makes and models. - Peterbilt 2007-87 - Dorman 760-5426 Cab Door (Driver Side) Exterior Door Handle Compatible with Select Peterbilt Models, Chrome - Dorman Exterior Door Handle 760-5426 - DORMAN Exterior Door Handle Left for Peterbilt

Stores: Carparts, Amazon, Fleetpride, Autozone

4.5
(49 reviews)
264-5055Dorman
264-5055 Steel Oil Pan, HD Solutions Series - Dorman 264-5055 Front Sump Engine Oil Pan Compatible with Select Models - DORMAN 47" Engine Oil Pan for Kenworth / Peterbilt / Volvo - Dorman Oil Pan 264-5055 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 55 Quart
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Title: 264-5055 Steel Oil Pan, HD Solutions Series - Dorman 264-5055 Front Sump Engine Oil Pan Compatible with Select Models - DORMAN 47" Engine Oil Pan for Kenworth / Peterbilt / Volvo - Dorman Oil Pan 264-5055 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 55 Quart

Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts

264-5054Dorman
DORMAN 40.2" Engine Oil Pan for Freightliner / Kenworth - Black - Dorman Oil Pan 264-5054 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 38 Quart
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Title: DORMAN 40.2" Engine Oil Pan for Freightliner / Kenworth - Black - Dorman Oil Pan 264-5054 - Engine Oil Pan - Engine Oil Pan: Direct Fit, Steel, Front Sump, 38 Quart

Stores: Advance, Fleetpride, Autozone, Finditparts

904-7247Dorman
904-7247 OE Solutions Series Crankshaft Position Sensor - Crank Position Sensor - Crankshaft Position Sensor - Dorman 904-7247 Engine Crankshaft Position Sensor Compatible with Select Models - Dorman Crankshaft Position Sensor 904-7247 - DORMAN Engine Crankshaft Position Sensor
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Title: 904-7247 OE Solutions Series Crankshaft Position Sensor - Crank Position Sensor - Crankshaft Position Sensor - Dorman 904-7247 Engine Crankshaft Position Sensor Compatible with Select Models - Dorman Crankshaft Position Sensor 904-7247 - DORMAN Engine Crankshaft Position Sensor

Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts

938-5407Dorman
938-5407 Hood Hinge Spring - Sold individually - Dorman 938-5407 Hood Control Spring Compatible with Select Peterbilt Models,Black - Dorman Hood Hinge Spring 938-5407 - DORMAN Hood Hinge Spring for Ford - Black - Hood Control Spring
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Title: 938-5407 Hood Hinge Spring - Sold individually - Dorman 938-5407 Hood Control Spring Compatible with Select Peterbilt Models,Black - Dorman Hood Hinge Spring 938-5407 - DORMAN Hood Hinge Spring for Ford - Black - Hood Control Spring

Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts

4.5
(18 reviews)
904-7251Dorman
904-7251 Camshaft Position Sensor, Sold Individually HD Solutions Series - Cam Sensor - Camshaft Timing Sensor - This direct replacement camshaft position sensor matches the fit and performance of a failed original equipment sensor to restore proper engine starting and running, made of quality materials for a reliable service life. - 2003-86 - Camshaft Timing Sensor - Dorman 904-7251 Engine Camshaft Position Sensor Compatible with Select Models - Dorman Distributor 904-7251 - DORMAN Engine Camshaft Position Sensor for Freightliner
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Title: 904-7251 Camshaft Position Sensor, Sold Individually HD Solutions Series - Cam Sensor - Camshaft Timing Sensor - This direct replacement camshaft position sensor matches the fit and performance of a failed original equipment sensor to restore proper engine starting and running, made of quality materials for a reliable service life. - 2003-86 - Camshaft Timing Sensor - Dorman 904-7251 Engine Camshaft Position Sensor Compatible with Select Models - Dorman Distributor 904-7251 - DORMAN Engine Camshaft Position Sensor for Freightliner

Stores: Carparts, Amazon, Fleetpride, Autozone, Finditparts

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