Frame & Chassis

BESTfit Heavy Duty Premium Poly BushingThe BESTfit Premium Poly Silent Block Bushing is an advanced suspension component designed to enhance the longevity and performance of Peterbilt Air Leaf suspensions. Made from durable polyurethane material, this...

BESTfit Air Leaf SpringEngineered to fit 4.000-inch springs, this aftermarket replacement part offers precise compatibility and strength for demanding applications. Featuring bolt hole center-to-center lengths of 1.9 inches and 4.775 inches, and bolt...

Hadley Type Leveling Valve Fits Peterbilt With Rear Air SuspensionsMaintain your Peterbilt's suspension efficiency with the BESTfit Hadley-Type Leveling Valve. This reliable replacement valve fits rear Air Leaf, Low Air Leaf, and Air Trac suspension...

BESTfit U-Bolt Kit Semi RoundThe BESTfit Semi-Round U-Bolt Kit offers a direct-fit solution for Peterbilt trucks using Air Trac and Air Leaf suspensions. Featuring two 1" diameter U-Bolts with a 16-inch length and accompanying hardware, this kit ensures...

BESTfit Forged Torque Rod Fits PeterbiltThe BESTfit 22.875" Forged Torque Rod is a direct-fit aftermarket replacement designed specifically for Peterbilt Air Trac and Air Leaf suspension setups. Featuring a 22.875-inch length and precision bolt hole...

BESTfit Rear Spring Bushing Mount Fits PeterbiltDo you need a low air leaf spring bushing mount for your Peterbilt? We carry this mount which is an aftermarket replacement part specifically for OE part number CS70789 and 03-05117. This part comes backed...

BESTfit Peterbilt Wear Plate With 5/8 Inch MountingThis Wear Pad Assembly is designed for Peterbilt Air Trac Suspension Hangers. It includes one wear pad and mounting hardware* High Quality Wear Plate* 5/8 Inch Mounting* Fits Air Trac Suspension*...

BESTfit Forged HD Torque Rod Fits PeterbiltDesigned as a direct-fit replacement for worn or damaged torque rods, the BESTfit 22.810" Forged HD Torque Rod offers long-lasting durability for Peterbilt trucks equipped with Air Trac and Air Leaf suspensions...

BESTfit Peterbilt Leaf Spring Poly BushingDesigned for strength and endurance, the BESTfit 2.55" x 5.672" Premium Rubber Bushing is perfect for Peterbilt rear suspension setups that demand high-performance parts. Constructed from rugged rubber to handle...

BESTfit Air Spring For Peterbilt Flex Air SuspensionThe BESTfit Air Spring is engineered to replace worn or damaged air springs on Peterbilt trucks with Flex Air suspension systems. Compatible with OEM Firestone W01-358-8813, this rolling lobe air spring...

BESTfit Torque Arm Bushing Fits PeterbiltThe BESTfit Torque Arm Bushing is an ideal replacement part for Peterbilt trucks needing torque rod bushing maintenance. Compatible with multiple OEM numbers including 350330088 and 8079894, this durable bushing...

BESTfit Leveling Valve Neway ReplacementReplace your worn or faulty leveling valve with this reliable BESTfit Neway Replacement, compatible with multiple OEM part numbers such as 22040570 and 90054007. Designed for easy installation and dependable...