ENGINE PARTS & COOLING

Super Core Turbo Assembly * High Quality Turbocharger Super Core* Cast Iron* Aluminum Compressor Housing * Non-Waste Gated * With Hp Ratings 450-650 Hp* Sold Individually*** High Quality Aftermarket Replacement Part (Not OEM)**** This Item Is Special...

Bully Dog 56900 Detroit Series 60 Big Rig Turbo * High Quality Turbocharger* Improves Performance And Reliability * Made To Create Reliable And Consistent Boost * Reduces Emissions And Enhances Fuel Economy* Faster Spool At Lower Engine Speeds * Ultra...

Performance Exhaust Manifold For Caterpillar C15 EnginesA beautifully crafted CNC billet steel masterpiece! Far superior performance than any other product. EGTs were 150 degrees lower than even the best aftermarket manifold while spooling the turbo...

Bully Dog High Performance Stage 2 Turbocharger Fits Caterpillar 3406B/C/E/C15/C16Increase horsepower and decrease fuel costs of your class 8 vehicle with this high performance Stage 2 Turbocharger with a billet wheel by Bully Dog. This upgrade has a...

Exhaust Manifold Fits CaterpillarSave money on gas and improve the efficiency of your Caterpillar engine by upgrading to this premium heavy duty Bully Dog ceramic coated exhaust manifold. It is one of the fastest flowing in the industry and provides a...

Heavy Duty Gauge Tuner Fits CAT, Cummins And Detroit EnginesIf you are looking for an easy to install tuner that provides a broad selection of customized options, 4 State Trucks offers this quality Heavy Duty Gauge Tuner from Bully Dog. It incorporates...

Ceramic-Coated Exhaust Manifold Fits DetroitIf you are ready to upgrade an old stock manifold on a 1995-2003 Detroit Series 60 12.7L and 14.0L engine, 4 State Trucks has what you are looking for with this heavy duty Bully Dog ceramic coated exhaust...

Ceramic-Coated Exhaust Manifold Fits CaterpillarThis high quality ceramic coated exhaust fits CAT Engines has a 20-30 horsepower increase and is ported to eliminate any flow interference while increasing airflow. It cools exhaust by up to 100 degrees and...

Performance Turbochargers Fits CATThis aftermarket CAT High Performance Turbocharger fits most C16, C15, & 3406E applications. Equipped with charge air cooler, quick spooling, substantial efficiency, and performance improvement over an OE turbo. This...

BESTfit Egr Cooler * High Quality EGR Cooler* Gasket (Not Included)* Sold Individually* Warranty On EGR Coolers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** Replaces OE Numbers...

BESTfit Flywheel Housing * High Quality Flywheel Housing* Aluminum * Size: SAE No. 1* Rated- EPA10* Sold Individually* Warranty On Flywheel Housings Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...

BESTfit EGR Cooler * High Quality EGR Cooler* 17 Inch Length* Sold Individually* Warranty On EGR Coolers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** Replaces OE Numbers...