Engine Parts

BESTfit Fiberglass Fan Shroud Fits Peterbilt 386 2006-2016The BESTfit Fan Shroud for Peterbilt 386, replacing OEM part N4176001, is made from top-quality fiberglass and designed to boost cooling...

BESTfit Clutch Hex Bar Fits Peterbilt 379The BESTfit Clutch Hex Bar with Adjustable Ends offers a versatile and durable solution for clutch system adjustments. Designed with precision and built to...

BESTfit Fiberglass Fan Shroud Fits PeterbiltThis oversized OEM quality fiberglass fan shroud helps restore uniform air distribution to the radiator core. Its pre-drilled holes allow for easy...

Radiator Fan Shroud W/ 34 Inch Opening By BESTfit Replaces 07-05202, 07-0660M001Ensure optimal engine cooling and performance with the Fiberglass Two Piece Radiator Fan Shroud (07-05202, 07-0660M001,...

BESTfit Fiberglass Fan Shroud Fits Peterbilt Replaces F22-6031M01 & F22-6014M03The BESTfit Fiberglass Fan Shroud, designed to replace OEM part F22-6031M01, is a high-quality replacement for Peterbilt...

2.5 Inch Stainless Steel Lower Coolant TubeThis 304 stainless steel lower coolant tube replaces OEM number F66-2767-200. It has threaded fittings that are 3/8th of an inch and hose ports that are 1...

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...

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...

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...

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...

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...

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...