37 X 35.75 Inch Fiberglass Fan Shroud Fits Peterbilt By BESTfitKeep your Peterbilt 379, 378, 377, or 357 engine running cooler and more efficiently with the BESTfit Fiberglass Fan Shroud. Manufactured from high-strength fiberglass with a gel-coated...

Fiberglass Fan Shroud Fits Peterbilt Replaces 07-06684M001/07-06684M002/07-06684M003This high quality fan shroud that fits Peterbilt 377, 378, and 379 models is gel-coated on the inside for improved air flow and is OEM quality. The fan has pre-drilled...

Radiator W/ 2.5 Inch Inlet & 2.5 Inch Outlet By BESTfit Replaces 0706657A055, 0706657A061* High Quality Radiator* Made Of Copper/Brass* 2 Row Core* With Frame* Core Size:  - 36.25 Inch Height   - 34.00 Inch Width   - 2.50 Inch Core...

Radiator Fan Shroud W/ 34 Inch Opening By BESTfit Replaces F22-6031M01, F22-6014M03Keep your Peterbilt 377, 378, or 379 engine running at peak efficiency with the Fiberglass Two Piece Radiator Fan Shroud F22-6031M01 / F22-6014M03. Made from sturdy,...

BESTfit Frame Rail Mounted Clutch Pivot Shaft Kit For Peterbilt 359This Clutch Pivot Shaft Kit for a Peterbilt 359 is designed to replace your factory style clutch pivot shaft. Constructed of high quality materials for long lasting durability, this frame...

Radiator Fan Shroud W/ 32 Inch Opening By BESTfit Replaces 07-06684M003, 07-06684M002Don't let overheating slow you down - equip your Peterbilt 357, 377, 378, 379, or 387 with the Fiberglass Two Piece Radiator Fan Shroud (07-06684M003 / 07-06684M002)...

Replacement Coolant Tube Fits Peterbilt 357, 377, 378 & 379Engineered for Peterbilt trucks with CAT 3406 engines, the BESTfit Stainless Steel Double Bend Upper Coolant Tube delivers superior durability and corrosion resistance. Made of stainless steel,...

BESTfit Gel-Coated Fiberglass Fan Shroud With Pre-Drilled HolesThe BESTfit Fiberglass Fan Shroud replaces OE part 5S68234D, delivering durable cooling system protection for heavy-duty trucks. Made from high-quality fiberglass, this fan shroud ensures...

Radiator W/ 2.5 Inch Inlet & 2.5 Inch Outlet By BESTfit Replaces T8789001, R1621001The BESTfit 40 1/2 x 30 5/8 x 2 Inch Radiator with 2 1/2 inch inlet and outlet provides superior cooling for your Peterbilt truck. Constructed to meet high standards, this...

Radiator Fan Shroud W/ 34.25 Inch Opening By BESTfit Replaces N4172001, 1460214-ASEnsure your Peterbilt 389 stays cool under pressure with the Fiberglass Two Piece Radiator Fan Shroud (N4172001, 1460214-As, 1460214-Az). Made from durable, high-quality...

BESTfit 37.5 X 38.75 Inch 5 Row Radiator W/ Bolt On Tanks Modified For Charge Air ApplicationThis 5-row metal radiator fits Peterbilt 359 models from 1979-1987. With bolt-on tanks modified for charge air application, it replaces vendor numbers PB-705-5...

BESTfit Peterbilt 359 Clutch Return SpringThis 14.625 Inch Clutch Return Spring for a Peterbilt 359 is designed to replace your OE 06-00981 factory style clutch return spring. This direct replacement black clutch spring is constructed of high quality...