Peterbilt 357/378 Frame & Chassis

BESTfit 12 Gauge Air Bag ReplacementUpgrade your air ride system with our Air Bag Replacement. It's made to last and fits perfectly with dimensions like 3.90 inches minimum height and 11.40 inches maximum diameter. You'll find it easy to install thanks...

BESTfit Peterbilt Wear Plate With 5/8 Inch MountingEnhance the performance and longevity of your Air Trac Suspension with our Wear Plate. Featuring a 5/8-inch mounting design, this plate comes complete with one wear pad and all necessary mounting...

BESTfit Spring Eye Bushing Fits Peterbilt Air Leaf SuspensionsEnsure smooth operation and stability for your air leaf models with our Eye Bushing kit. Each kit includes essential components like a spring eye sleeve, compression washers, a lock nut,...

BESTfit Spring Pin Double Lock Fits Peterbilt & KenworthOur double lock, designed to fit 4-inch springs, offers enhanced security and durability for your vehicle's suspension system. With precise measurements of 8.859 inches, including lock notches at 5...

BESTfit Steer Axle Rear Spring Hanger Fits PeterbiltUpgrade your vehicle's suspension with our Spring Hanger, suitable for the rear of the steer axle on either the driver or passenger side! Designed for use with a 4-inch spring, this aftermarket...

BESTfit Peterbilt Spring Hanger Replaces 02-01800M001, 3381230Upgrade your vehicle's suspension with our Spring Hanger! Positioned at the rear of the steer axle, this hanger fits both driver and passenger sides. Specifically designed for 4-inch springs,...

BESTfit Double Convoluted Air Spring For Ridewell, Watson & Chalin SuspensionsIntroducing our Double Convoluted Air Spring, designed to meet your suspension needs with precision and reliability. Crafted with quality materials, this air bag boasts...

BESTfit Suspension Leveling ValveGet your air ride suspension system back in top shape with our Air Leveling Valve, designed specifically for air ride suspensions. This Barksdale Type Height Control Valve is sold individually as an aftermarket...

BESTfit Air BagUpgrade your vehicle's suspension with our quality air bag. Designed for durability and performance, this aftermarket replacement part offers reliable support and enhanced ride comfort. Sold individually, it's the perfect solution for...

BESTfit Height Control Valve Linkage And Rod Kit, Replaces 03-05180Upgrade your height control valve system with our Adjustable Linkage Kit, meticulously engineered for optimal performance and versatility. This kit includes an 18-inch rod with ends and...

BESTfit 18.8 x 12.6 Inch Air Bag With Load 5700 LBs At 80 PSIThe "Air Bag" is a suspension component measuring 18.8 inches in height and 12.6 inches in diameter. It features a plastic base with a top plate that includes three holes/studs, measuring 9...

Single Brake Chamber Type 30 - 8.00 Inch DiameterUpgrade your braking system with our Service Brake Chamber, meticulously designed for optimal performance. Featuring a stroke length of 2.25 inches and a rod threaded full length measuring 8.250 inches by ...