Engine Parts

BESTfit 37.5 X 38.75 Inch 4 Row Radiator W/ Bolt On Tanks Modified For Charge Air ApplicationThe BESTfit 4 Row Radiator with Frame is a perfect replacement for OE 07-04449A011 and 07-04449A022. It fits Peterbilt 359 vehicles from 1980-1987 and has...

BESTfit Peterbilt 3 Row Radiator Core W/ GasketsThe BESTfit High Performance 3-Row Radiator Core offers a durable and efficient solution for heavy-duty trucks. With dimensions of 41.5 by 34.5 inches, this radiator core's three-row design enhances heat...

SS Upper Coolant Tube Replaces OE # 07-07013Keep your engine running cool with this high-quality stainless steel upper coolant tube from BESTfit, built for Peterbilt 330 and 379 applications. With dual 2 x 2.5-inch diameters and a direct-fit design that...

BESTfit Radiator Kit Fits PeterbiltThis Copper Brass 3 Row Radiator Kit with Frame from BESTfit is a dependable cooling solution for your Peterbilt 387. The radiator features a 32.375" H x 22.625" W x 2.25" thick core and includes a 2.5" upper left inlet...

BESTfit High Performance Copper Brass Radiator With Surge Tank And 5 Row Core Fits PeterbiltThis BESTfit High Performance 5 Row Radiator with a surge tank seamlessly fits with select Peterbilt 357, 377, 378, and 379 models. This radiator boasts a dimpled...

Replacement Stainless Steel Coolant Tube Fits PeterbiltKeep your engine running cool with this BESTfit 3 Inch Stainless Steel Coolant Tube, built to replace OE number F66-6167. Engineered for heavy-duty performance, this tube features corrosion-resistant...

BESTfit Peterbilt 359 Radiator Core With Serpentine FinThe BESTfit 4 Row Radiator Core with serpentine fin is engineered for Peterbilt 359 trucks, offering a large 37.5 by 38.75-inch core with a 3-inch thickness for superior cooling. The serpentine fin...

BESTfit 4 Row Radiator W/ Out Surge TankIs your truck overheating? Look no further, 4 State Trucks has a great radiator for you. With this affordable option, you will get premium performance while still being a dependable choice. Get the most bang for...

BESTfit Radiator Kit With 4 Row Core Fits Peterbilt 1994-2004This high quality Copper Brass Radiator with a Surge Tank 36.25 X 34.375 inch that fits Peterbilt 375, 377, 378, and 379 has offset mounting bolts. The radiator kit includes: 1 radiator, one 36...

Coolant Tube Fits Peterbilt 357, 377, 378 & 379 W/ CAT EngineImprove your truck's cooling system with this BESTfit 3 Inch Stainless Steel Coolant Tube, designed for durability and reliable performance. Made from corrosion-resistant stainless steel, this...

BESTfit Peterbilt 4 Row Radiator CoreRestore your truck's cooling efficiency with the BESTfit High Performance 4-Row Radiator Core, sized at 41.5 by 34.5 inches. Its four-row construction maximizes heat transfer, helping to maintain optimal engine...

Poly Radiator Mount Bushing Replaces 07-05861, D84 RM75-63861, And RM7563861Enhance radiator stability and reduce vibration with the BESTfit Poly Radiator Mount Bushing, designed for Peterbilt 357, 359, 362, 377, 378, 379, and 385 models. This...