Engine Parts

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 Peterbilt* High Quality Radiator Kit* Made Of Brass/Copper* With Frame Work* 3 Row Core* Kit Includes:  - (1) Radiator  - (1) 36 Inch X 2.5 Inch Coolant Hose  - (1) 6 Foot X .375 Inch Coolant Hose  - (4) CAC...

BESTfit High Performance Copper Brass Radiator With Surge Tank And 5 Row Core Fits Peterbilt* High Quality Radiator* Made Of Copper/Brass* 5 Row* Surge Tank Mounted On Top* Great For High Horsepower Or Heavy Haul Applications* 16 Fins Per Inch vs. 14...

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 Tank* High Quality Radiator* Made Of Copper/Brass* With Hoses, Clamps And Mounting Accessories* Without Surge Tank* 4 Row Core* With Frame Work* Core Size:  - 36.250 Inch Height  - 34.625 Inch Width  - 2...

BESTfit Radiator Kit With 4 Row Core Fits Peterbilt 1994-2004* High Quality Radiator Kit* Made Of Copper/Brass* 4 Row Core* With Surge Tank* With Frame* Bolt On Tanks* Kit Includes:  - (1) Radiator  - (1) 36 Inch X 1.00 Inch Coolant Hose ...

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, RM7563861 By BESTfitEnsure reliable radiator mounting on Peterbilt models 357, 359, 362, 377, 378, 379, and 385 with the BESTfit 1.95 Inch Poly Radiator Mount Bushing. Made from durable poly,...

Replacement Coolant Tube Lower Coolant Tube 2.5 OD To 3 Inch IDMaintain the efficiency of your Peterbilt 357, 377, 378, or 379 with the BESTfit Stainless Steel Lower Radiator Pipe, engineered for Cummins N14 engines. High-quality 304 stainless steel...

Peterbilt Replacement 4 Row Radiator CoreGet your new Peterbilt 375, 377, 378, 379 radiator core today at 4 State Trucks! The BESTfit Radiator Core for Class 8 vehicles features a design with 4 rows of 1/2 inch tubes on 5/16 inch tube centers, along with...