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Chrome stacks and tops for Freightliner Columbia 112/120 really elevate your truck's look and performance. Choose from 5 to 8-inch sizes and lengths like the 36-inch turn-out. You can even find curved stainless steel stacks that add a sleek touch. These options not only make your rig look great but also enhance its durability and performance.

Freightliner Columbia 112/120 Chrome Stacks & Tops

Freightliner Columbia 112/120 Chrome Stacks & Tops This product lineup features a wide selection of chrome and stainless steel exhaust stacks and tops for Freightliner Columbia 112/120 semi-trucks. These premium-quality replacement components offer both functional and aesthetic upgrades, enhancing the look and performance of your truck. The collection includes a variety of sizes, shapes, and styles to suit different preferences and applications. You'll find straight, curved, and miter-cut stacks ranging from 4 to 8 inches in diameter and 18 to 120 inches in length. Many are designed with expanded inlets or turned-out ends for a distinctive appearance. In addition to the standard chrome finish, some models feature a sleek brushed or show chrome look. The lineup also includes bull hauler and west coast turn-out styles, providing a range of options to personalize the exterior of your Freightliner Columbia. Whether you're seeking to replace worn-out stacks, upgrade the style of your rig, or achieve a custom tailored look, this product lineup has the high-quality chrome and stainless steel exhaust components to meet your needs. Improve your truck's performance and turn heads on the road with the Freightliner Columbia 112/120 Chrome Stacks & Tops.

Frequently Asked Questions About Freightliner Columbia 112/120 Chrome Stacks & Tops

What size exhaust stacks fit my Freightliner Columbia, and how do I measure for the correct diameter?

Most Freightliner Columbia 112/120 models use 5-inch diameter exhaust stacks, but some configurations may require 6-inch or 7-inch stacks. To measure correctly, use a tape measure to find the outside diameter of your existing exhaust pipe where the stack will mount. Measure at least 6 inches down from the top for accuracy. If you're replacing factory stacks, check behind the cab for the OEM size stamped on the existing pipes. For curved stacks, ensure you have at least 12 inches of clearance from the cab to prevent heat damage.

Will these chrome stacks work with my Columbia's model year, and are there differences between the 112 and 120 series?

Chrome stacks designed for Freightliner Columbia trucks typically fit model years 2000-2017. The main difference between 112 and 120 series is the BBC (bumper to back of cab) measurement - 112-inch versus 120-inch - but this doesn't affect stack compatibility. Both series use the same mounting brackets and exhaust configurations. However, pre-2004 models may have different bracket spacing, so verify your bracket style (single-bolt or double-bolt mount) before ordering. Cascadia models that replaced the Columbia after 2017 require different stacks due to redesigned exhaust routing.

How difficult is the installation, and what tools or additional parts will I need?

Installation typically takes 2-4 hours and requires basic hand tools: socket set (usually 9/16" and 5/8"), torque wrench, and exhaust clamps. Most chrome stacks come with clamps, but you may need high-temperature exhaust sealant and new gaskets if reusing isn't possible. Common challenges include aligning dual stacks evenly and achieving proper angle - use a level and measure from multiple reference points on the cab. Some installers recommend having a helper to hold stacks in position while tightening. If your truck has emissions equipment, ensure the stack length doesn't interfere with DPF regeneration cycles.

What's the difference between 304 and 430 stainless steel, and how long will the chrome finish last?

304 stainless steel contains nickel and offers superior corrosion resistance, maintaining its shine longer in harsh conditions - expect 5-7 years with regular maintenance. 430 stainless is magnetic, less expensive, but may show rust spots after 2-3 years, especially in salt-heavy regions. True chrome-plated stacks offer the brightest finish but require more frequent polishing (monthly) to prevent pitting. Most quality stacks feature 16-gauge or thicker material - avoid anything thinner than 18-gauge as it may develop stress cracks from vibration. For longest life, apply metal polish monthly and cover stacks when parked for extended periods.

What stack styles are available, and how do they affect performance and appearance?

Common styles include straight pipes, curved pipes, bull hauler stacks (with turnout tops), and miter-cut stacks. Straight stacks offer classic looks and easiest installation but may allow rain entry. Curved stacks reduce cab soot and rain intrusion but require precise fitment to avoid cab contact. Bull hauler tops deflect exhaust away from trailers but add 6-12 inches to overall height - check bridge clearances. Miter cuts (typically 15-45 degrees) provide aggressive styling while directing exhaust at an angle. Performance differences are minimal, though some drivers report slightly better fuel economy with curved stacks due to improved exhaust flow. Chrome tops are available separately if you want to change style without replacing entire stacks.


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