Grand Rock - 2003-Newer Peterbilt 379, OE Fit Chrome Duplex Exhaust Stack Kit The Grand Rock - 03-Newer Peterbilt 379 OE Fit Chrome Duplex Exhaust Stack Kit is a high-quality exhaust upgrade engineered specifically for 2003 and newer Peterbilt 379 trucks. Designed to match original equipment (OE) fitment, this duplex stack kit ensures a precise, direct replacement of your factory exhaust stacks without the need for modification. The polished chrome finish not only enhances the classic Peterbilt look but also provides excellent resistance to corrosion, rust, and daily wear from road and weather conditions. Whether you're restoring a truck or adding a premium visual upgrade, this kit offers both durability and style in one complete package. Built for reliable performance and long service life, the duplex configuration promotes balanced exhaust routing that supports efficient engine operation under heavy load. Each component is manufactured to strict quality standards, offering solid construction that stands up to heat, vibration, and long hours on the highway. Designed for straightforward installation with OE-style components and mounting points, this exhaust kit is suitable for professional mechanics, fleet maintenance, or experienced DIY truck owners. With its combination of form and function, this chrome duplex stack kit is an excellent choice for anyone looking to maintain or enhance their Peterbilt's exhaust system. OE-fit design for direct replacement on 2003 and newer Peterbilt 379 models Chrome finish delivers a polished look with superior corrosion resistance Duplex stack configuration ensures balanced exhaust flow and performance Durable construction withstands heavy use, heat, and highway conditions Straightforward installation using OE-style components and mounting points 7PK-5655OE Still looking for the perfect part? Having trouble finding it? Call our product experts at 603-224-7370 and let us lend a hand.
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