Peterbilt 357/378 Elbows, Piping & Comp.
Make upgrading your exhaust system a breeze with aftermarket universal elbows, piping and components for your Peterbilt 378. Find the perfect custom, chrome, and aftermarket exhaust pipes. Upgrade your Peterbilt exhaust without breaking the bank at 4 State Trucks.
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Chrome Multi-Bend Economy Elbow Replaces 14-13845RC For Peterbilt 377, 378, 379 Passenger Side
TPHD
$229.99Multi-Bend Economy Exhaust Elbow Fits Peterbilt 378 & 379 Passenger Side * High Quality Elbow* Made Of Chrome Plated Steel* Multi-Bend Economy Style * With Seam Between Bends* Fits Passenger Side, Bottom Of Muffler* Measurements:- 7.91 Inch Width- 8.15...$229.99 -
Peterbilt 357, 377, 378, 379 BESTfit 85 Degree Turbo Pipe, Replaces 14-13002
BESTFIT TRUCK PARTS
$89.99Aluminized Steel 85 Degree Turbo Pipe With 5 Inch ODEnhance your exhaust system with our Aluminized Steel Pipe, boasting a 5-inch outer diameter and an 85-degree angle for optimal fit and performance. Crafted in the USA and sold individually as an...$89.99 -
Aluminized Steel Exhaust Down Pipe Replaces 14-14194 For Peterbilt 375, 377, 378, 379
AFTERMARKET
$181.99Exhaust Down Pipe Below Turbo Pipe Fits Peterbilt * High Quality Down Pipe* Made Of Aluminized Steel* With Detroit Engine* Pipe That Comes After The Turbo Pipe On Most Models* Sold Individually* Warranty On Down Pipes Against Defects In Workmanship &...$181.99 -
5 Inch Plain Economy Exhaust Y-Pipe Combo For Peterbilt 357, 378 Passenger Side W/ Hi Mount Exhaust
BESTFIT TRUCK PARTS
$653.995 Inch Exhaust Y-Pipe Combo Fits Peterbilt 357 & 378 Passenger Side * Economy Exhaust Elbow* Y Pipe* 5 Inch OD* Thickness 0.062 Inch* Sold Individually* Warranty On Exhaust Elbow Against Defects In Workmanship & Material From Date Of Purchase*** High...$653.99 -
68 Degree Turbo Pipe Replaces 14-14256 For Peterbilt
BESTFIT TRUCK PARTS
$84.69Peterbilt Turbo Connection PipeThis high quality turbo pipe has a 68 inch degree bend and features a hole for a pyrometer probe. It has a 5.85 inch OD with a Flange and a 4.860 inch ID. The pipe fits various Peterbilt 377, 378, and 379 models. * High...$84.69 -
Chrome Multi-Bend Economy Elbow Replaces 14-11380C For Peterbilt 377, 378 Driver Side
AUTOMANN USA
$250.99Multi-Bend Economy Exhaust Elbow Fits Peterbilt 377 & 378 Driver Side * High Quality Elbow * Made Of Chrome-Plated Steel* Multi-Bend Economy Style* With Seam Between Bends* Fits Driver Side, Bottom Of Muffler* 5 Inch OD Inlet* 5 Inch OD Outlet* 19 Inch...$250.99 -
BESTfit Y-Pipe Hanger Black Steel 8 Inch Kit For Long Drop Elbow Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
$329.998 Inch Black Steel Y-Pipe Hanger KitIntroducing our Y-Pipe Hanger Bracket Kit, tailored for Peterbilt trucks with an 8-inch long drop 90-degree elbow and full-size exhaust tee. Each kit includes 2 black steel exhaust tee pipe hangers, 2 8-inch chrome...$329.99 -
5 Inch ID-OD X 6 Inch OAL Aluminized Steel Type A Turbo Pipe With 5.5 Inch Diameter Flange For CAT 3406/C15
AUTOMANN USA
$28.265 Inch ID-OD X 6 Inch OAL Aluminized Steel Type A Turbo Pipe * Turbo OD Universal Turbo Flange * Style A* Made of Aluminized Steel* 5 Inch OD* 6 Inch Length* 5.88 Inch Diameter On Flange* Fits 3406 and C15 CAT * Use With VB-588C V-Band Clamp* Use With...$28.26 -
BESTfit 7 Inch Chrome Long Drop Elbow For Peterbilt 378, 379
BESTFIT TRUCK PARTS
$489.99BESTfit Long Drop Elbow 7 To 7 Inch Fits Peterbilt * High Quality Drop Elbow * Chrome-Plated * 7 Inch* Long Leg * With Tapered Top 7 Inch O.D. Bottom * Sold Individually* Warranty On Drop Elbow Against Defects In Workmanship & Material From Date Of...$489.99 -
Peterbilt 377, 378, 379 BESTfit 5 Inch I.D./O.D. 90 Degree Exhaust Elbow Pipe, Replaces 14-13394-202
BESTFIT TRUCK PARTS
$189.99BESTfit Aluminized Steel 90 Degree Exhaust Elbow PipeUpgrade your exhaust system with our Aluminized Steel Elbow Pipe, featuring a sturdy construction for long-lasting durability. With a convenient 90-degree angle design, this pipe ensures optimal fit...$189.99 -
5 Inch Plain Economy Exhaust Elbow BOM For Peterbilt 357, 378 Passenger Side W/ Hi Mount Exhaust
BESTFIT TRUCK PARTS
$373.995 Inch Exhaust Elbow Bottom Of Muffler Fits Peterbilt 357 & 378 Passenger Side * Economy Exhaust Elbow* Aluminized Steel * Above The Frame* Single Exhaust* Thickness 0.062 Inch* 5 Inch OD* Sold Individually* Warranty On Exhaust Elbow Against Defects In...$373.99 -
BESTfit Y-Pipe Hanger Stainless Steel 8 Inch Kit For Long Drop Elbow Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
$409.998 Inch Stainless Steel Y-Pipe Hanger KitIntroducing our Y-Pipe Hanger Bracket Kit, designed for Peterbilt trucks with an 8-inch long drop 90-degree elbow and full-size exhaust tee. This kit features premium stainless steel exhaust tee pipe hangers,...$409.99