378
Enhance your Peterbilt 378 with high-quality aftermarket and OEM-style replacement parts crafted for durability and performance. Our selection of Peterbilt 378 parts includes heavy-duty bumpers, chrome grilles, LED lighting upgrades, interior components, exterior trim, and precision-fit accessories built to handle demanding hauling and vocational applications. Whether you’re replacing worn parts or customizing your truck for improved looks and functionality, these rugged components deliver long-lasting reliability and style. Shop Peterbilt 378 accessories that help keep your truck performing strong day in and day out.
Shop Peterbilt 378 aftermarket and replacement truck parts including interior, exterior, and body components for reliable performance and durability.
Filter by Brand
Enhance your Peterbilt 378 with high-quality aftermarket and OEM-style replacement parts crafted for durability and performance. Our selection of Peterbilt 378 parts includes heavy-duty bumpers, chrome grilles, LED lighting upgrades, interior components, exterior trim, and precision-fit accessories built to handle demanding hauling and vocational applications. Whether you’re replacing worn parts or customizing your truck for improved looks and functionality, these rugged components deliver long-lasting reliability and style. Shop Peterbilt 378 accessories that help keep your truck performing strong day in and day out.
Peterbilt 379/378 Cowl Panels – Blank
Original price was: $222.39.$155.69Current price is: $155.69.
SKU:
TP-1304
Peterbilt 379/378 Inner Fender Trims (All Years)
Original price was: $189.68.$132.79Current price is: $132.79.
SKU:
TFT-PET379F
Peterbilt 379/378 Outer Fender Trims (All Years)
Original price was: $244.09.$170.89Current price is: $170.89.
SKU:
TFT-PET379
Peterbilt 5″ Window Chop Tops (2006-2020) – Door Mounted Mirrors | Paintable | Flange
Original price was: $91.39.$63.99Current price is: $63.99.
SKU:
TP-1457
Peterbilt 5″ Window Chop Tops (2006-2020) – Cab Mounted Mirrors | Paintable | Flange
Original price was: $86.44.$60.59Current price is: $60.59.
SKU:
TP-1456
Peterbilt 5″ Window Chop Tops (2006-2020) – Cab Mounted Mirrors | Paintable
Original price was: $82.58.$57.89Current price is: $57.89.
SKU:
TP-1455
Peterbilt 5″ Window Chop Tops (2006-2020) – Door Mounted Mirrors | Paintable
Original price was: $82.58.$57.89Current price is: $57.89.
SKU:
TP-1454
Peterbilt Under Door Window Trims (1973-2005) – Rivet Mount
Original price was: $131.32.$91.99Current price is: $91.99.
SKU:
TP-1450
Peterbilt Door Window Trim Bezel (2005+)
Original price was: $103.24.$72.29Current price is: $72.29.
SKU:
TP-1413
Peterbilt Door Window Trim Bezel (Pre-2005)
Original price was: $92.91.$65.09Current price is: $65.09.
SKU:
TP-1412
Peterbilt 37″ Rear Sleeper Window Trim (All Years)
Original price was: $156.93.$109.89Current price is: $109.89.
SKU:
TP-1407
Peterbilt Door Window Shades (2005+) – Without Mirror Cutout
Original price was: $301.49.$211.09Current price is: $211.09.
SKU:
TP-1402
Peterbilt Cab Mounted Door Window Shades (2005-2012)- Mirror Cutout
Original price was: $301.49.$211.09Current price is: $211.09.
SKU:
TP-1401
Peterbilt 5″ Window Chop Tops with Convex Mirror Cutout (All Years) – Cab Mounted Mirrors
Original price was: $124.43.$87.09Current price is: $87.09.
SKU:
TP-1446
Peterbilt 379/378 Cowl Panels – 3/4″ Round LEDs (Clear Lens)
Original price was: $334.06.$233.89Current price is: $233.89.
SKU:
TP-13126LC
Peterbilt 379/378 Cowl Panels – 3/4″ Round LEDs (Amber Lens)
Original price was: $334.06.$233.89Current price is: $233.89.
SKU:
TP-13126L
Peterbilt 379/378/359 Long Hood Louvered Grille Bar Kit (All Years) – Angled | 15 Bars
Original price was: $1,053.20.$737.29Current price is: $737.29.
SKU:
TP-1102
Peterbilt Wiper Arm Covers (All Years)
Original price was: $55.33.$38.79Current price is: $38.79.
SKU:
TP-0130
Peterbilt Windshield Contour & Center Trim Kit (1987+)
Original price was: $246.27.$172.39Current price is: $172.39.
SKU:
TP-0196
LED Interior Projector Dome & Map 7-Color Cab Light for Peterbilt – Black
Original price was: $81.06.$56.79Current price is: $56.79.
SKU:
TLED-IR50
LED Interior Projector Dome 7-Color Cab Light for Peterbilt – Black
Original price was: $86.73.$60.79Current price is: $60.79.
SKU:
TLED-ID30
Peterbilt 379/378 Rear 15″ Standard Vortox Air Cleaner LED Light Bars (1987-2004) – 16 x G2 Holes
Original price was: $351.36.$245.99Current price is: $245.99.
SKU:
TP-1857
Peterbilt 389/388/379/378 Front Standard Air Cleaner LED Light Bars (2005-2007) – 16 x G2 Holes
Original price was: $277.07.$193.99Current price is: $193.99.
SKU:
TP-1855
Peterbilt 389/388/379/378 Front Standard Air Cleaner LED Light Bars (1987+) – 12 x G2 Holes
Original price was: $194.02.$135.89Current price is: $135.89.
SKU:
TP-1852
Frequently Asked Questions
What parts are available for Peterbilt 378 trucks?
Peterbilt 378 trucks use replacement parts such as bumpers, mirrors, grilles, headlights, interior trim, and exterior accessories designed for heavy-duty trucking.
Are Peterbilt 378 aftermarket parts reliable?
Yes. Many aftermarket Peterbilt 378 parts are designed to meet heavy-duty durability standards and provide long service life.
What are common replacement parts for Peterbilt 378 trucks?
Frequently replaced components include headlights, mirrors, bumpers, grille assemblies, and dashboard parts.
Can Peterbilt 378 trucks be upgraded with aftermarket accessories?
Yes. Popular upgrades include LED lighting systems, chrome bumpers, and interior accessories that enhance both style and functionality.
Why is it important to use quality Peterbilt 378 replacement parts?
Using durable replacement parts helps maintain truck safety, reduce downtime, and ensure reliable performance during long hauls.
