Peterbilt 357/378 Exterior Parts
Maximize the performance of your Peterbilt 357/378 with our assortment of cab panels, fairings, replacement mirrors, and sleeper options
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On Sale
15-Inch 304 Stainless Steel Square-End Front Air Cleaner Panels with 5 Watermelon Light Holes
JML KUSTOMS
Now: $165.71Was: $194.95Enhance Your Peterbilt 589 with Customizable Air Cleaner PanelsElevate the appearance and functionality of your Peterbilt 589 with our 15-inch 304 stainless steel square-end front air cleaner panels. Designed for durability and style, these panels...Now: $165.71Was: $194.95 -
On Sale
15-Inch 304 Stainless Steel Square-End Front Air Cleaner Brackets with 3 Watermelon Light Holes
JML KUSTOMS
Now: $165.71Was: $194.95Enhance Your Peterbilt 589 with Customizable Air Cleaner BracketsElevate the appearance and functionality of your Peterbilt 589 with our 15-inch 304 stainless steel square-end front air cleaner brackets. Designed for durability and style, these brackets...Now: $165.71Was: $194.95 -
Day Cab Extended Complete Conversion Kit With Tan Interior For Peterbilt 378, 379, 386, 388, 389 Regular Cab
FIBERTECH
$3,889.99Day Cab Extended Complete Conversion Kit * High Quality Extended Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch x 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass- Window...$3,889.99 -
Day Cab Extended Complete Conversion Kit With Light Gray Interior For Peterbilt 378, 379, 386, 388, 389 Regular Cab
FIBERTECH
$3,889.99Day Cab Extended Complete Conversion Kit * High Quality Extended Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch x 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass- Window...$3,889.99 -
Day Cab Extended Complete Conversion Kit With Black Interior For Peterbilt 378, 379, 386, 388, 389 Regular Cab
FIBERTECH
$3,889.99Day Cab Extended Complete Conversion Kit * High Quality Extended Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch x 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass- Window...$3,889.99 -
Peterbilt 378, 379, 386, 388, 389 Extended Basic Flat Panel Day Cab Conversion Kit
FIBERTECH
$2,088.99Peterbilt Ext. Cab Basic Flat Panel Day Cab Conversion KitGet a comfy ride with this 6-inch fiberglass cab extension for your Peterbilt 378, 379, 386, 388, 389, or 389 Glider. It adds 4 inches of legroom and features a rugged aluminum sub-structure for...$2,088.99 -
Day Cab Flat Panel Complete Conversion Kit With Tan Interior For Peterbilt 378, 379, 386, 388, 389 Regular Cab
FIBERTECH
$2,455.99Day Cab Flat Panel Complete Conversion Kit * High Quality Flat Panel Conversion Kit* Includes:- One-piece Fiberglass Panel- Bonded 1 Inch x 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass- Window Seal And...$2,455.99 -
Day Cab Flat Panel Complete Conversion Kit With Dark Gray Interior For Peterbilt 378, 379, 386, 388, 389 Regular Cab
FIBERTECH
$2,456.99Peterbilt Ultra Cab Flat Panel Day Cab Kit Complete Conversion Kit * High Quality Flat Panel Conversion Kit* Includes:- One-piece Fiberglass Panel- Bonded 1 Inch x 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window...$2,456.99 -
Peterbilt 378, 379, 386, 388, 389 Basic Flat Panel Day Cab Conversion Kit
FIBERTECH
$1,144.99Peterbilt Ultra Cab Basic Flat Panel Day Cab Conversion KitThis Day Cab Flat Panel Basic Conversion Kit is a convenient solution for converting select Peterbilt 378, 379, 386, 388, 389 models into day cabs. This aftermarket kit includes a one-piece...$1,144.99 -
Day Cab Extended Panel Complete Conversion Kit With Tan Interior For Peterbilt 378, 379, 386, 388, 389 Ultra Cab
FIBERTECH
$3,439.99Peterbilt Ultra Cab Day Cab Conversion Kit * High Quality Extended Panel Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch X 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass-...$3,439.99 -
Day Cab Extended Panel Complete Conversion Kit With Light Gray Interior For Peterbilt 378, 379, 386, 388, 389 Ultra Cab
FIBERTECH
$3,439.99Peterbilt Ultra Cab Day Cab Conversion Kit * High Quality Extended Panel Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch X 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass-...$3,439.99 -
Day Cab Extended Panel Complete Conversion Kit With Dark Gray Interior For Peterbilt 378, 379, 386, 388, 389 Ultra Cab
FIBERTECH
$3,439.99Peterbilt Ultra Cab Day Cab Conversion Kit * High Quality Extended Panel Conversion Kit* Includes:- 3 Piece 6 Inch Fiberglass Cab Extension- Bonded 1 Inch X 2 Inch Aluminum Bracing- Fiberglass Interior Window Trim- 19 Inch x 36 Inch Rear Window Glass-...$3,439.99