Peterbilt 357/378 Parts
Find the best Peterbilt 378 aftermarket parts in the business here at 4 State. The Peterbilt 378 semi truck represents all of the characteristics of the Peterbilt brand, and was a popular model with similar features to the Peterbilt 379. Pete truck models are a brand of choice for experienced truckers who need dependable semi trucks. 4 State Trucks has all the semi truck parts and accessories you need to make your Pete 378 stand out to showcase your unique personality. Whether you need aftermarket bumpers, exhaust, or fuel tanks, we've got you covered. Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler.
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On Sale
BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Flat Top Top Stack Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $3,514.49Was: $3,904.99BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt 378 & 379 - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: Flat Top - Length: 96 Inches - Long Drop Elbows - 52 Inch Quiet...Now: $3,514.49Was: $3,904.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ Miter Cut Top Stack Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt
BESTFIT TRUCK PARTS
Now: $4,308.29Was: $4,786.99Chrome 8 Inch Exhaust Kit With 52 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003-...Now: $4,308.29Was: $4,786.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt
BESTFIT TRUCK PARTS
Now: $4,378.49Was: $4,864.99Chrome 8 Inch Exhaust Kit With 52 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003-...Now: $4,378.49Was: $4,864.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt
BESTFIT TRUCK PARTS
Now: $4,639.49Was: $5,154.99Chrome 8 Inch Exhaust Kit With 52 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003-...Now: $4,639.49Was: $5,154.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ Miter Cut Top Stack Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $4,346.09Was: $4,828.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2 - 01-08018000- Chrome Long Leg 8 Inch Elbow With Tapered Top 8 Inch O.D. Bottom - 1 -...Now: $4,346.09Was: $4,828.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $4,415.39Was: $4,905.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2 - 01-08018000- Chrome Long Leg 8 Inch Elbow With Tapered Top 8 Inch O.D. Bottom - 1 -...Now: $4,415.39Was: $4,905.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt
BESTFIT TRUCK PARTS
Now: $3,639.59Was: $4,043.99Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003- Exhaust...Now: $3,639.59Was: $4,043.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ Miter Cut Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $3,148.19Was: $3,497.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool & 58 Degree Elbow - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-081853056- 8-5 58-Dg Chrome Elbow With Tapered Top For O.D. Stacks 8 Inch Elbow Reduces To 5 Inch O.D. On...Now: $3,148.19Was: $3,497.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $3,215.69Was: $3,572.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool & 58 Degree Elbow - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-081853056- 8-5 58-Dg Chrome Elbow With Tapered Top For O.D. Stacks 8 Inch Elbow Reduces To 5 Inch O.D. On...Now: $3,215.69Was: $3,572.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $3,471.29Was: $3,856.99Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 09-08806808- 8 O.D. X 68 Chrome West Coast Turn Top Stack - 2- 09-0838052- Exhaust Quiet...Now: $3,471.29Was: $3,856.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
BESTFIT TRUCK PARTS
Now: $3,665.69Was: $4,072.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 09-08806808- 8 O.D. X 68 Chrome West Coast Turn Top Stack - 2- 09-0838055- Exhaust Quiet...Now: $3,665.69Was: $4,072.99 -
On Sale
BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ Flat Top Top Stack Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Quiet Spools Unibilt
BESTFIT TRUCK PARTS
Now: $4,308.29Was: $4,786.99Chrome 8 Inch Exhaust Kit With 55 Inch Spool, Long Drop Elbows & 5 Inch T Pipe - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003-...Now: $4,308.29Was: $4,786.99