Frame & Chassis

Upper Shock Bracket By BESTfitSupport safe and smooth suspension operation on your Freightliner Cascadia with this BESTfit Upper Shock Bracket. Designed for the upper shock mounting position, it ensures precise fit, secure shock placement, and optimal...

Replacement G86105955 Air Tanks By BESTfit* High Quality Air Tank Assembly* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Includes:  - (2) Single Chamber Tanks  - (2) Mounting Brackets Top Of Tank* Dimensions:...

Kenworth Black Steel 16 Port Dual Chamber Tank By BESTfit* High Quality Air Tank* Dual Chamber* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Dimensions:   - 150 PSI Working Pressure  - 46.00 Body Length  -...

Replacement G86-1141 Air Tank By BESTfit* High Quality Air Tank* Single Chamber* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Dimensions:   - 150 PSI Working Pressure  - 28.00 Body Length  - 8.00 Inch...

Replacement K2392950 Single Chamber Tank W/ Side Ports* High Quality Air Tank* Single Chamber* Made Of Aluminum* Meets SAE J10 And FMVSS 121 Standards* Dimensions:   - 150 PSI Working Pressure  - 1242 Cubic Inch Capacity  - 19.50 Body...

Replacement K2392125 Air Tank By BESTfit* High Quality Air Tank* Single Chamber* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Dimensions:   - 150 PSI Working Pressure  - 1242 Cubic Inch Volume  - 19.50...

Replacement K239-2122 Air Tank By BESTfit* High Quality Air Tank* Single Chamber* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Dimensions:   - 150 PSI Working Pressure  - 34.00 Body Length  - 9.50 Inch...

Replacement K2391937 Air Tank By BESTfit* High Quality Air Tank* Single Chamber* Made Of Steel* Meets SAE J10 And FMVSS 121 Standards* Black Phosphate Coating* Dimensions:   - 150 PSI Working Pressure  - 1900 Cubic Inch Volume  - 26.50...

Kenworth Battery Box Cover With Reinforced Corners By BESTfitPreserve your battery performance and extend service life with the BESTfit Battery Box Cover for Kenworth K100E, T370, T800, and T880. Made of durable plastic, this reinforced cover is built to...

Engine Support Bracket Cat 3406 By BESTfitMaintain your Peterbilt truck's performance with the BESTfit Front Engine Mount Crossmember 05-15046M002, engineered for models 365, 367, 377, 378, 379, and 387 equipped with Cat engines. This professional-grade...

Replacement Frame Crossmember Gusset By BESTfitReinforce your truck's frame with this heavy-duty Frame Crossmember Gusset, designed to replace OEM part number 01-47609. Built for strength and durability, this gusset is engineered to provide added support...

Replacement G86600440FE Air Tank By BESTfitKeep your Peterbilt 378, 379, 388, or 389 air system operating at peak efficiency with the BESTfit 10-inch OD x 40.625-inch Single Chamber Air Tank. Constructed from high-quality steel with black phosphate...