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Freightliner Century 112/120 Exhaust Parts

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit Exhaust Pipe Steel Coupler

    BESTfit Exhaust Pipe Steel Coupler

    BESTFIT TRUCK PARTS

    $18.99 - $26.27
    The BESTfit Exhaust Pipe Steel Coupler provides a durable solution for connecting exhaust components with strength and precision. Manufactured from aluminized steel, it's built to resist corrosion...
    PPR_206265
    SKU:
    PPR_206265
    Truck Class:
    Universal
    Make:
    Universal Items
    Diameter Options:
    5 Inch
    Diameter Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Diameter Options:
    4 Inch
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $18.99 - $26.27
    Qty in Cart: 0
    Price:
    $18.99 - $26.27
    Subtotal:
  • 7 To 5 OD Chrome OD Bull Hauler Bottom Exhaust Stack

    7 To 5 OD Chrome OD Bull Hauler Bottom Exhaust Stack

    UNITED PACIFIC

    $420.99 - $701.99
    Choose Option(s) to see description.7 To 5 OD x 36 Inch Chrome Bull Hauler Bottom Exhaust StackChrome 36 Inch Tall Bull Hauler Bottom Exhaust Stack W/ 7 Inch Reduced To 5 Inch OD* High Quality Bottom...
    PPR_205775
    SKU:
    PPR_205775
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $420.99 - $701.99
    Qty in Cart: 0
    Price:
    $420.99 - $701.99
    Subtotal:
  • Chrome Plated Steel 45 Degree Exhaust Expanded Elbow

    Chrome Plated Steel 45 Degree Exhaust Expanded Elbow

    UNITED PACIFIC

    $116.99
    Choose Option(s) to see description.Chrome Plated Steel 45 Degree Exhaust Expanded Elbow, 5 Inch ID To 5 Inch OD5 Inch ID To OD Chrome Exhaust Elbow, 12 x 12 Inch* High Quality Exhaust Expanded...
    PPR_205783
    SKU:
    PPR_205783
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    45
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $116.99
    Qty in Cart: 0
    Price:
    $116.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Reducer W/ Finish And Connection Size Options

    Reducer W/ Finish And Connection Size Options

    UNITED PACIFIC

    $26.78 - $62.99
    Choose Option(s) to see description.6 To 5 Inch ID/ID Aluminized Exhaust Reducer6 To 5 Inch ID Pipe Reducer - Rust ResistantConnect 6 inch inside diameter exhaust pipe to 5 inch inside diameter...
    PPR_205785
    SKU:
    PPR_205785
    Truck Class:
    Universal
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Finish Options:
    Paintable
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $26.78 - $62.99
    Qty in Cart: 0
    Price:
    $26.78 - $62.99
    Subtotal:
  • 6 ID X 72 Inch Chrome West Coast Curve Exhaust Stack By BESTfit

    6 ID X 72 Inch Chrome West Coast Curve Exhaust Stack By BESTfit

    BESTFIT TRUCK PARTS

    $382.99
    Chrome-Plated 6 Inch I.D. x 72 Inch Length West Coast Curve Exhaust Stack* High Quality Stack* Chrome-Plated * 6 Inch I.D.* 72 Inch Height* West Coast Curve* Sold Individually * Warranty On Stacks...
    09-08607218
    SKU:
    09-08607218
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Style Options:
    West Coast Turn
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Height Options:
    72 Inch
    $382.99
    Qty in Cart: 0
    Price:
    $382.99
    Subtotal:
  • BESTfit 5 Inch OD x 48 Inch Aluminized Exhaust Tubing - 4 Foot

    BESTfit 5 Inch OD x 48 Inch Aluminized Exhaust Tubing - 4 Foot

    BESTFIT TRUCK PARTS

    $54.99
    4 Foot Aluminized Exhaust Tubing* High Quality Exhaust Tubing* Aluminized Steel* 5 Inch OD X 48 Inches* 4 Foot Section* Made In USA* Sold Individually* Warranty On Exhaust Tubing Against Defects In...
    09-080100543
    SKU:
    09-080100543
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    48 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Chrome 90 Degree Exhaust Expanded Elbow

    Chrome 90 Degree Exhaust Expanded Elbow

    UNITED PACIFIC

    $116.99 - $185.99
    Choose Option(s) to see description.Chrome 90 Degree Exhaust Expanded Elbow 5 Inch ID To 5 Inch OD - 18 X 18 Inch18 x 18 Inch 90 Degree Exhaust Expanded Elbow* High Quality Exhaust Elbow*...
    PPR_205784
    SKU:
    PPR_205784
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    5 Inch
    Style Options:
    Elbow
    Diameter Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $116.99 - $185.99
    Qty in Cart: 0
    Price:
    $116.99 - $185.99
    Subtotal:
  • 6 OD Chrome Curved Bottom Exhaust Stack W/ Slotted Bottom

    6 OD Chrome Curved Bottom Exhaust Stack W/ Slotted Bottom

    UNITED PACIFIC

    $259.99
    Choose Option(s) to see description.6 OD x 48 Inch Chrome Curved Bottom Exhaust Stack With Expanded/ Slotted BottomChrome 48 Inch Tall Curved Bottom Exhaust Stack W/ 6 Inch ODLooking to upgrade your...
    PPR_205779
    SKU:
    PPR_205779
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Style Options:
    Curve Turn
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $259.99
    Qty in Cart: 0
    Price:
    $259.99
    Subtotal:
  • Chrome Straight Center Spool With 8 Inch Diameter & Length Options

    Chrome Straight Center Spool With 8 Inch Diameter & Length Options

    UNITED PACIFIC

    $538.99 - $717.99
    Choose Option(s) to see description.Chrome 8 X 55 Inch Straight Center Spool8 Inch Straight Center Spool* High Quality Center Spool* Steel* 8 Inch* Triple Chrome Plating Finish* Sold Individually*...
    PPR_205786
    SKU:
    PPR_205786
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    8 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $538.99 - $717.99
    Qty in Cart: 0
    Price:
    $538.99 - $717.99
    Subtotal:
  • 6 - 5 ID Inch Chrome Curved Top Exhaust Stack

    6 - 5 ID Inch Chrome Curved Top Exhaust Stack

    UNITED PACIFIC

    $563.99 - $697.99
    Choose Option(s) to see description.6 To 5 ID x 96 Inch Chrome Curved Bottom Exhaust StackChrome Curved Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 6 Inch Reduce To 5 Inch I.D.*...
    PPR_205780
    SKU:
    PPR_205780
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Style Options:
    Curve Turn
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $563.99 - $697.99
    Qty in Cart: 0
    Price:
    $563.99 - $697.99
    Subtotal:
  • 7 X 5 ID Inch Chrome Curved Bottom Exhaust Stack

    7 X 5 ID Inch Chrome Curved Bottom Exhaust Stack

    UNITED PACIFIC

    $986.99 - $1,307.99
    Choose Option(s) to see description.7 To 5 ID x 108 Inch Chrome Curved Bottom Exhaust StackChrome Curved Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 7 Inch Reduce To 5 Inch I.D.*...
    PPR_205781
    SKU:
    PPR_205781
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    7 Inch
    Style Options:
    Curve Turn
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $986.99 - $1,307.99
    Qty in Cart: 0
    Price:
    $986.99 - $1,307.99
    Subtotal:
  • Chrome Bull Hauler Bottom Exhaust, 8 To 5 Inch OD

    Chrome Bull Hauler Bottom Exhaust, 8 To 5 Inch OD

    UNITED PACIFIC

    $563.99 - $786.99
    Choose Option(s) to see description.8 To 5 OD x 48 Inch Chrome Bull Hauler Bottom Exhaust StackChrome Bull Hauler Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 8 Inch Reduce To 5...
    PPR_205776
    SKU:
    PPR_205776
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    8 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $563.99 - $786.99
    Qty in Cart: 0
    Price:
    $563.99 - $786.99
    Subtotal:
  • 8 - 5 ID Chrome Curved Bottom Exhaust Stack

    8 - 5 ID Chrome Curved Bottom Exhaust Stack

    UNITED PACIFIC

    $1,276.99
    Choose Option(s) to see description.8-5 X 108 Inch Chrome Cruved Bottom Exahust For Over A Connecting ExhaustOver A Connecting Exhaust* High Quality Exhaust Stack* Chrome-Plated* 8 Inch Reduce To 5...
    PPR_205782
    SKU:
    PPR_205782
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    8 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    8 Inch
    Style Options:
    Curve Turn
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $1,276.99
    Qty in Cart: 0
    Price:
    $1,276.99
    Subtotal:
  • Chrome Bull Hauler Bottom Exhaust, 8 To 5 Inch ID

    Chrome Bull Hauler Bottom Exhaust, 8 To 5 Inch ID

    UNITED PACIFIC

    $1,319.99 - $1,594.99
    Choose Option(s) to see description.8 To 5 ID x 96 Inch Chrome Bull Hauler Bottom Exhaust StackChrome Bull Hauler Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 8 Inch Reduce To 5...
    PPR_205777
    SKU:
    PPR_205777
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    8 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $1,319.99 - $1,594.99
    Qty in Cart: 0
    Price:
    $1,319.99 - $1,594.99
    Subtotal:
  • Chrome 5 Inch Straight Plain Bottom Exhaust

    Chrome 5 Inch Straight Plain Bottom Exhaust

    UNITED PACIFIC

    $124.99 - $207.99
    Choose Option(s) to see description.5 X 36 Inch Chrome Straight Plain Bottom Exhaust PipeChrome Straight Plain Bottom Exhaust Pipe* High Quality Exhaust Stack* Chrome-Plated* 5 Inch Diameter X 36...
    PPR_205341
    SKU:
    PPR_205341
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $124.99 - $207.99
    Qty in Cart: 0
    Price:
    $124.99 - $207.99
    Subtotal:
  • Aluminized 5 Inch Y Exhaust Pipe

    Aluminized 5 Inch Y Exhaust Pipe

    UNITED PACIFIC

    $141.99 - $158.99
    Choose Option(s) to see description.Aluminized 5 Inch Y Pipe - 16 In W X 11 In HAluminized 5 Inch Y Exhaust Pipe* High Quality Y Pipe* Aluminized Steel* 16 Inch W X 11 Inch L* Sold Individually*...
    PPR_205354
    SKU:
    PPR_205354
    Truck Class:
    Universal
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Height Options:
    5 Inch
    Finish Options:
    Paintable
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $141.99 - $158.99
    Qty in Cart: 0
    Price:
    $141.99 - $158.99
    Subtotal:
  • Chrome 5 Inch Mitered Plain Bottom Exhaust

    Chrome 5 Inch Mitered Plain Bottom Exhaust

    UNITED PACIFIC

    $79.99 - $221.99
    Choose Option(s) to see description.5 X 24 Inch Chrome Mitered Plain Bottom Exhaust Stack5 X 24 Inch Mitered Plain Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 5 Inch O.D.* 24...
    PPR_205337
    SKU:
    PPR_205337
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $79.99 - $221.99
    Qty in Cart: 0
    Price:
    $79.99 - $221.99
    Subtotal:
  • Chrome 6 Inch Curved Reduce To 5 Inch O.D. Bottom Exhaust

    Chrome 6 Inch Curved Reduce To 5 Inch O.D. Bottom Exhaust

    UNITED PACIFIC

    $170.99 - $643.99
    Choose Option(s) to see description.6 To 5 OD x 108 Inch Chrome Curved Bottom Exhaust StackChrome 108 Inch Tall Curved Bottom Exhaust Stack W/ 6 Inch Reduced To 5 Inch OD* High Quality Curved Bottom...
    PPR_205333
    SKU:
    PPR_205333
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $170.99 - $643.99
    Qty in Cart: 0
    Price:
    $170.99 - $643.99
    Subtotal:
  • Chrome 6 Inch Mitered Plan Bottom Exhaust

    Chrome 6 Inch Mitered Plan Bottom Exhaust

    UNITED PACIFIC

    $592.99 - $618.99
    Choose Option(s) to see description.6 X 96 Inch Chrome Mitered Plan Bottom Exhaust Stack6 X 96 Inch Mitered Plan Bottom Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 6 Inch O.D.* 96 Inch...
    PPR_205329
    SKU:
    PPR_205329
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Style Options:
    Miter Cut
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $592.99 - $618.99
    Qty in Cart: 0
    Price:
    $592.99 - $618.99
    Subtotal:
  • Chrome 7 Inch Mitered Reduce to 5 Inch I.D. Bottom Exhaust

    Chrome 7 Inch Mitered Reduce to 5 Inch I.D. Bottom Exhaust

    UNITED PACIFIC

    $1,096.99 - $1,350.99
    Choose Option(s) to see description.7 to 5 IDX 96 Inch Chrome Mitered Exhaust Stack7 to 5 IDX 96 Inch Mitered Exhaust Stack* High Quality Exhaust Stack* Chrome-Plated* 7 Inch Reduce To 5 Inch O.D.*...
    PPR_205342
    SKU:
    PPR_205342
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Diameter Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $1,096.99 - $1,350.99
    Qty in Cart: 0
    Price:
    $1,096.99 - $1,350.99
    Subtotal:
  • Total: items /

Adding your products to cart

Your Freightliner Century 112 or 120 deserves an exhaust system that works just as hard as you do. Whether you’re replacing worn-out components or upgrading for a cleaner, more powerful ride, this lineup of aftermarket exhaust parts has you covered.

Elevate Your Century 112/120 Exhaust System

From chrome stacks that bring head-turning style to mufflers, clamps, elbows, and DPF systems that keep your truck running clean, our exhaust selection is built to deliver. These parts improve exhaust flow, help reduce emissions, and support better fuel efficiency—all while giving your rig a polished, professional finish. Here's what you'll find: - DPFs & Mufflers: Control emissions and cut down on noise - Chrome Exhaust Stacks & Tips: Add a bold, custom look - Clamps, Brackets & Hangers: Keep your system tight and secure - Elbows, Tubing & Piping: Route exhaust efficiently and cleanly - Full Exhaust Kits: Everything you need in one complete package

Why Customize Your Semi Truck Exhaust?

- Better exhaust flow = stronger performance - Enhanced fuel economy for long hauls - Sleek, chrome options for a custom appearance - Durable components built for daily commercial use - Easy-fit replacements for quick repairs
Whether you're hauling a payload cross-country or working a local route, your Freightliner Century deserves parts that deliver. For a full upgrade, add a power modification like a Century 112/120 engine performance parts (turbochargers and manifolds) or swap out old, worn-out heat and AC parts for your Century 112/120. Shop the best in aftermarket exhaust solutions right here and keep your semi-truck running cool, clean, and powerful for miles to come.

Frequently Asked Questions About Freightliner Century 112/120 Exhaust Parts

Will these exhaust parts fit my specific Century model year?

Most aftermarket exhaust components for the Century 112/120 are designed to fit model years 1996-2011. However, there are variations between early models (1996-2004) and later models (2005-2011), particularly in mounting bracket locations and pipe diameters. Always verify your truck's exact model year and engine type (Detroit, Caterpillar, or Cummins) before ordering, as exhaust routing can differ significantly between engine configurations.

What's the difference between aluminized and stainless steel exhaust parts?

Aluminized steel exhaust parts typically last 3-5 years and cost about 40% less than stainless steel options. They work well for trucks in dry climates or those with regular maintenance schedules. Stainless steel parts can last 7-10 years or more and resist corrosion better in wet, salty conditions. For Century trucks operating in northern states or coastal areas, the extra investment in stainless steel often pays for itself through extended service life.

Can I install these exhaust parts myself, or do I need special tools?

Basic exhaust stack and tip replacements can typically be done with standard hand tools in 1-2 hours. However, complete exhaust system overhauls involving manifolds, turbo pipes, or flex pipes often require specialized equipment like pipe expanders, cutting tools, and heavy-duty jack stands. Many Century owners report that Y-pipe and muffler installations are particularly challenging due to limited clearance and may require loosening engine mounts for proper fitment.

Which exhaust stack styles and sizes work best for Century 112/120 trucks?

The most common stack sizes for Century trucks are 5-inch and 6-inch diameters, with 5-inch being standard on most factory configurations. Straight chrome stacks remain the most popular choice, though curved and mitered styles are available for custom looks. Stack heights typically range from 48 to 72 inches, with 60-inch stacks providing the best balance of appearance and practical bridge clearance for most applications.

Why are my new exhaust parts not fitting properly even though they're listed as compatible?

Century trucks often underwent modifications during their service life, including frame stretches, suspension changes, or non-standard exhaust routing from previous repairs. Additionally, some aftermarket parts are designed as "universal fit" and may require minor adjustments like trimming pipes or drilling new mounting holes. Before installation, compare your existing exhaust layout to factory diagrams, as previous owners may have installed custom configurations that affect fitment of replacement parts.


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