Peterbilt 379 Exhaust & Intake Manifolds

Bully Dog Cummins Signature ISX Turbo Gasket 4026884 *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect Manifold Turbo Gasket...

Bully Dog Cummins ISX Signature 600 Series Non-EGR Exhaust Manifold Turbo Gasket Kit *Please Verify OEM Number Before Purchase *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect...

Bully Dog Detroit Diesel 60 Series Stainless Steel Exhaust Manifold Spacers *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect replacement stud Kit for your Bully Dog Exhaust...

Bully Dog Cummins ISX Stainless Steel Exhaust Manifold Spacers *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect replacement stud Kit for your Bully Dog Exhaust...

Bully Dog Caterpillar Stainless Steel Exhaust Manifold Spacers *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect replacement stud Kit for your Bully Dog Exhaust Manifold Turbo...

Bully Dog Caterpillar Exhaust Manifold Stud Kit *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect replacement stud Kit for your Bully Dog Exhuast Manifold Turbo Stud Kit Fits...

Bully Dog Caterpillar 3406 C-15 ARP Exhaust Manifold Turbo Stud Kit *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Get yourself the perfect replacement stud Kit for your Bully Dog Exhaust...

Bully Dog Caterpillar 90-Degree Elbow Kit *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck! Elbow Kit Fits Various Caterpillar Engines Premium Bully Dog Product:...

Bully Dog Cummins Elbow Kit *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. This 45 degree V-Band Elbow is designed to provide easy installation and durability Cummins Elbow Kit Fits Various Cummins...

Bully Dog Cummins ISX EGR Exhaust Manifold *Bully Dog products are NOT legal in California. Raney's is not responsible for legal ramifications. Boost the performance of your truck! Exhaust Intake Manifold Fits Cummins ISX EGR (2003-2007)...

Cummins ISX Intake Manifold 870 Optimize Cummins ISX engines (2003-2007) with this high-grade aluminum intake manifold. Increases airflow by 85%, reduces fuel consumption, and ensures easy installation. Intake Manifold Fits Cummins ISX Engines...

Caterpillar C13 Intake Manifold 3091 Boost KCB C13 engines with this intake manifold. Improve fuel efficiency by 0.3 - 0.5 MPG, lower engine temps, and enjoy quicker throttle response. Intake Manifold Fits KCB C13 Engines 0.3 - 0.5 MPG...

Cummins ISX Exhaust Manifold Kit 4386606 4386579 *Please Verify OEM Number Before Purchase Heavy Duty Exhaust Manifold Kit with Hardware Fits Cummins ISX Engines Direct Aftermarket Replacement For OEM #s: 4386606 4386579 Kit Includes (12)...

Detroit Diesel DD15 Exhaust Manifold 4721420901 *Please Verify OEM Number Before Purchase Heavy Duty Exhaust Manifold Fits Detroit Diesel DD15 Engines Direct Aftermarket Replacement For OEM #: 4721420901 Kit Includes (1) Center EGR Exhaust...

Caterpillar C13 Engine Exhaust Manifold Kit 2504409 2319030 *Please verify your OEM number(s) before purchasing. This high-quality kit is designed to improve exhaust flow, reduce back pressure, and enhance overall engine efficiency. Exhaust Manifold...

Caterpillar 3406E C15 Engine Exhaust Manifold Kit *Please Verify Your OEM Number Before Purchase Our Exhaust Manifold Kit is designed with precision and attention to detail, ensuring your Caterpillar 3406E and C15 engines operate at their best. By...

Caterpillar 3400 Exhaust Manifold Kit *Please Verify OEM Number Before Purchase Upgrade your Caterpillar 3400 Series engine with our Exhaust Manifold Kit, designed for peak performance and durability.  Caterpillar Exhaust...

Caterpillar Exhaust Manifold Kit *Please Verify OEM Number Before Purchase Upgrade your Caterpillar 3400 Series engine with our comprehensive Exhaust Manifold Kit, designed for peak performance and durability.  Caterpillar Exhaust...

Paccar Exhaust Manifold Gasket 2106219 *Please Verify Your OEM Number Before Purchase Heavy Duty Exhaust Manifold Gasket Fits Peterbilt Paccar MX13 Engines (2010-2022) Direct Aftermarket Replacement For OEM...

Cummins EGR Cooler 4376312 4376312NX 4376312RX 5347234 *Please Verify Your OEM Number(s) Before Purchasing Replacement EGR Cooler Direct Aftermarket Replacement For OEM #s: 4376312 4376312NX 4376312RX 5347234  Fits Various Make And...