Peterbilt 357/378 Exhaust Parts
Looking to upgrade Peterbilt 357/378 exhaust? We've got you covered with a range of superior chrome stacks, ranging from 5 to 8 inches in diameter and top styles like curve turn, miter cut, and bull hauler. Our assortment also includes various aftermarket clamps, mufflers, and elbows. For a complete overhaul, check out our 6, 7, and 8-inch exhaust kit options from Lincoln Chrome, American Eagle, and BESTfit
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BESTfit 7 Inch Chrome-Plated SS Wide Straight Clamp Replaces 50BJ-PB700SCP For Peterbilt 377, 378, 379, 386, 388, and 389
BESTFIT TRUCK PARTS
$113.99BESTfit Chrome Stainless Steel Wide Straight ClampEnhance your exhaust system with our top-of-the-line chrome-plated stainless steel exhaust clamp. Measuring 7 inches in diameter, this clamp is designed for either the driver or passenger side of your...$113.99 -
BESTfit 7 Inch Chrome-Plated SS Wide Angled Clamp Replaces 50BJ-APB700SCP For Peterbilt 377, 378, 379, 386, 388 & 389
BESTFIT TRUCK PARTS
$108.99BESTfit Chrome Stainless Steel Wide Angled ClampUpgrade your exhaust system with our premium chrome-plated stainless steel exhaust clamp. Measuring 7 inches in diameter, this versatile clamp is suitable for use on both the driver or passenger side of...$108.99 -
BESTfit 8 X 30 Inch OAL Exhaust Muffler With 5 Inch I.D. Inlet & Outlet
BESTFIT TRUCK PARTS
$151.99BESTfit Muffler 8 Inch Diameter * High Quality Muffler* Aluminized* Dimensions- 8 Inch Diameter- 5 Inch I.D. Inlet/Outlet- 24 Inch Length Body- 30 Inch Length Overall* Sold Individually* Warranty On Mufflers Against Defects In Workmanship & Material From...$151.99 -
BESTfit DPF Filter Clamp - Replaces 2871862
TPHD
$32.99BESTfit DPF Filter ClampLooking for a filter clamp for your DPF filters 29-0809011? Our aftermarket replacement part, sold individually, is the perfect fit. Replacing OEM number 2871862, it ensures a secure hold for your filters, keeping your vehicle...$32.99 -
BESTfit DPF Filter Clamp - Replaces 2871863 & 21445455
BESTFIT TRUCK PARTS
$33.49BESTfit Filter Clamp For DPFIn need of a filter clamp? Our aftermarket replacement part, sold individually, is here for you. It seamlessly replaces OE numbers 2871863 and 21445455, ensuring your vehicle's filter is securely held in place. * Filter Clamp*...$33.49 -
BESTfit DPF Gasket Replaces 2866337 For Cummins
BESTFIT TRUCK PARTS
$7.33BESTfit DPF Gasket Fits CumminsLooking for a replacement gasket that won't break the bank? Our aftermarket gasket is designed to replace OEM number 2866337 and is sold individually. Rest assured, you're getting a quality replacement part without the OEM...$7.33 -
BESTfit Exhaust Elbow Replaces 14-13845RC For Peterbilt 378, 379 Passenger Side
BESTFIT TRUCK PARTS
$396.99BESTfit Exhaust Elbow Fits Peterbilt 378 & 379This high-quality exhaust elbow is built from chrome-plated steel and features a durable multi-bend design engineered for smooth exhaust flow and long-lasting performance. Made for the passenger side on...$396.99 -
BESTfit Exhaust Elbow Replaces 14-13845LC For Peterbilt 378, 379 Driver Side
BESTFIT TRUCK PARTS
$354.99BESTfit Exhaust Elbow Fits Peterbilt 378 & 379 Driver SideThis high-quality exhaust elbow is built from chrome-plated steel and features a durable multi-bend design engineered for smooth exhaust flow and long-lasting performance. Made for the driver side...$354.99 -
BESTfit 8 To 5 X 96 Inch Curve Turn Stack
BESTFIT TRUCK PARTS
$818.99BESTfit 8-5 X 96 Inch Turnout StackUpgrade your vehicle's exhaust system with our chrome-plated steel Exhaust Stack! Featuring a classic turnout style, this aftermarket replacement part boasts an 8 to 5-inch inner diameter for optimal performance. With a...$818.99 -
On Sale
BESTfit 2.5 X 14.75 Inch Flex Connector W/ Flange Replaces M666559 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
Now: $69.59Was: $164.99SS 12 3/4 Inch DPF Flex ConnectorPresenting our Connector, meticulously crafted in the USA to meet your vehicle's needs. With a 2.5-inch flange by 2.5-inch flange, compressed to 12.750 inches, this aftermarket replacement part ensures a precise fit in...Now: $69.59Was: $164.99 -
BESTfit 5 Inch X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$324.99BESTfit Stainless Steel 14.5 Inch Long DPF Flex Connector PipeIntroducing our Flex Connector, crafted in the USA with precision and care. This aftermarket replacement part boasts a 5-inch flange by 5-inch flange, compressed to 14.500 inches, ensuring a...$324.99 -
On Sale
BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
Now: $116.78Was: $237.99BESTfit DPF Exhaust Flex Connector PipeOur Flex Connector, crafted in the USA, boasts a 4-inch flange by 4-inch flange dimension, compressed to 11.375 inches. Ensuring top-notch quality, it's sold individually as an aftermarket replacement part,...Now: $116.78Was: $237.99