Engine Parts

Fuel Pump Mounted Cancel Switch, 3406 B, Normally OpenThis Switch Assembly Cancels Jake Brakes when throttle is applied and sets idle speed. Find the essential parts you need for your truck you can count on at 4 State Trucks!* High Quality Brake Fuel...

5.5 Inch Air Intake Rubber 22 Degree ElbowThe Rubber Intake Elbow easily mounts on the inner flange of the intake collar. It's 5.5 inches in diameter and is angled at 22 degrees to improve airflow.* High Quality Air Intake Elbow* Rubber* 5.5 Inch ID*...

Replacement Peterbilt 359 Rubber Air Intake ElbowThe BESTfit 5.5 ID X 45-Degree Rubber Air Intake Elbow is a durable replacement part designed specifically for Peterbilt 359 models from 1967 to 1987. Made from high-quality rubber, this 5.5-inch inner...

Heavy-Duty Clutch Cross-Shaft Lever - Direct Fit for PeterbiltThis heavy-duty cross-shaft lever is the direct-fit replacement for Peterbilt part number 06-00715, engineered to restore proper clutch operation on compatible Peterbilt manual-clutch trucks...

38 x 36 3/8 Inch Black Fiberglass Fan ShroudThe Peterbilt 359 Fiberglass Fan Shroud is designed with durability in mind. Made from black gelcoat fiberglass, this shroud boasts a thickness of 1/4 inch. It provides excellent protection and helps to...

Heater Core With 3/4 Inch OD Inlet And OutletKeep your Peterbilt truck's heating system working efficiently with this high-quality heater core, designed to replace part number B20011S. Compatible with Peterbilt 377, 378, 379, and 385 models, this durable...

BESTfit Radiator Kit Without Frame* High Quality Radiator Kit* Made Of Brass/Copper* With Oil Cooler Without Frame* Kit Includes:  - (1) Radiator  - (1) 36 Inch X 2.0 Inch Coolant Hose  - (1) 6 Foot X .375 Inch Coolant Hose  - (4) CAC...

BESTfit EGR Cooler For Mack MP8 & Volvo D13 EnginesKeep the EGR system for your Mack MP8 or Volvo D13 engine running with this aftermarket EGR cooler kit.* High Quality EGR Cooler* For Mack MP8 And Volvo D13* No Core Exchange Required * Crossover With...

BESTfit Plastic Aluminum Radiator With Oil Cooler* High Quality Radiator * Plastic Aluminum* With Oil Cooler* 24.8750 Height * 25.125 Width* 2.062 Thick* 2.00 Inlet Upper Left* 2.00 Outlet Lower Right* Sold Individually* Warranty On Radiator Against...

BESTfit EGR Cooler For Detroit 14.0L DDEC VII 60 Series Engine* High Quality EGR Cooler* For Detroit Series 60* 14.0L DDEC VII 2007-2009* Sold Individually* Warranty On EGR Coolers Against Defects In Workmanship & Material From Date Of Purchase*** High...

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 Oil Pan Gasket For D13 Engine Oil Pan 29-07200018* High Quality Oil Pan Gasket* Pair With Oil Pan 29-07200018 - Sold Separately* Sold Individually* Warranty On Oil Pan Gaskets Against Defects In Workmanship & Material From Date Of Purchase***...