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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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 -
Chrome Reducer, 6 To 5 Inch ID
UNITED PACIFIC
$42.99Chrome Plated 6 To 5 Inch ID ReducerConnect 6 inch inside diameter exhaust pipe to 5 inch inside diameter exhaust pipe with this reducer. It is chrome plated and is sold individually. * High Quality Reducer* Chrome-Plated* 6 Inch I.D. To 5 Inch I.D.*...$42.99 -
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 -
Peterbilt 378, 379, 389, 389 Glider Chrome 5 Inch Tapered Y-Pipe
BESTFIT TRUCK PARTS
$368.99BESTfit 5 Inch Taper Lock Y Exhaust PipeEnhance your truck's exhaust system with this aftermarket replacement Y-pipe, designed for optimal performance and durability. Crafted from chrome-plated steel, this Y-pipe offers excellent corrosion resistance and...$368.99 -
Aluminized Steel Flared Exhaust Adapter 5.72 OD X 6.25 Inch - 41689 For Cummins 855CI W/T50 Turbo
AUTOMANN USA
$23.55Flared Exhaust Adapter Replaces 41689 * High Quality Exhaust Adapter* Aluminized Steel* Dimensions:- 5.00 Inch OD- 5.72 Inch Flange OD- 6.25 Inch Length* Sold Individually* Warranty On Exhaust Adapters Against Defects In Workmanship & Material From Date...$23.55 -
5 Inch Aluminized Taper Lock Y Pipe For BESTfit Long 90 Degree Elbow For Peterbilt 378, 379,389 Glider
BESTFIT TRUCK PARTS
$192.99BESTfit 5 Inch Aluminized Taper Lock T-Pipe For Long Drop Elbows For Use Without Flex PipeUpgrade your exhaust system with our T-Pipe, crafted from durable aluminized steel for longevity and performance. Featuring 5-inch tapered ends, this T-Pipe is...$192.99 -
Peterbilt BESTfit 5 Inch Aluminized Y-Pipe Exhaust W/5 Inch O.D. Inlet Replaces 14-15353-0150
BESTFIT TRUCK PARTS
$289.99BESTfit Aluminized Steel Exhaust Y-Pipe, Replaces 14-15353-0150Crafted from durable aluminized steel, this Exhaust Y Pipe is designed to deliver reliable performance. With a 5-inch outer diameter inlet and outlet, it promotes efficient exhaust flow...$289.99 -
Chrome Multi-Bend Economy Elbow Replaces 14-11380RC For Peterbilt 377, 378 Passenger Side
AUTOMANN USA
$250.99Multi-Bend Economy Exhaust Elbow Fits Peterbilt 377 & 378 Passenger Side * High Quality Elbow * Made Of Chrome-Plated Steel* Multi-Bend Economy Style * With Seam Between Bends* Fits Passenger Side, Bottom Of Muffler* 5 Inch OD Inlet* 5 Inch OD Outlet* 19...$250.99 -
Chrome Reducer, 7 To 5 Inch ID
UNITED PACIFIC
$55.38Chrome Plated 7 To 5 Inch ID ReducerConnect 7 inch inside diameter exhaust pipe to 5 inch inside diameter exhaust pipe with this reducer. It is chrome plated and is sold individually. * High Quality Reducer* Chrome-Plated* 7 Inch I.D. To 5 Inch I.D.*...$55.38 -
BESTfit 3.5 Inch Diameter X 4 Inch Type A Turbo/Manifold Outlet For 7.3L Powerstroke Engines
BESTFIT TRUCK PARTS
$21.51BESTfit 3.5 X 4 Inch Type A Turbo Manifold Outlet With 4.25 Inch Flange Fits 7.3L Powerstroke EnginesOur Turbo Outlet is engineered with durable aluminized steel, offering resilience against rust and corrosion. With a length of 4 inches, an outer...$21.51 -
BESTfit Y-Pipe Hanger Stainless Steel 6 Inch Kit For Long Drop Elbow Peterbilt 378, 379, 389 Glider
BESTFIT TRUCK PARTS
$396.996 Inch Stainless Steel Y-Pipe Hanger KitIntroducing our Y-Pipe Hanger Bracket Kit, designed for Peterbilt trucks equipped with a 6-inch long drop 90-degree elbow and full-size exhaust tee. This comprehensive kit includes two stainless steel exhaust tee...$396.99 -
Chrome Multi-Bend Economy Elbow Replaces 14-13845C For Peterbilt 377, 378, 379 Driver Side
TPHD
$246.99Multi-Bend Economy Exhaust Elbow Fits Peterbilt 378 & 379 Driver Side * High Quality Elbow* Made Of Chrome Plated Steel* Multi-Bend Economy Style * With Seam Between Bends* Fits Driver Side, Bottom Of Muffler* Measurements:- 7.91 Inch Width- 8.15 Height-...$246.99