Peterbilt 357/378 Frame & Chassis

Heavy Duty Shock Absorber Fits Peterbilt 330, 335, 359, 362, 375, 377, 378, 379, 386, 389, 567 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with...

Heavy Duty Shock Absorber Fits Peterbilt 362, 375, 377, 378, 386, 387 & 587Bulldog HD shocks are fleet tested and approved. This is a premium rear replacement shock reengineered to be better than the factory part that came with your truck. It features a...

Heavy Duty Shock Absorber Fits Peterbilt 362, 375, 377, 378, 379, 385 & 386Find premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last longer and perform better than the part that...

2 Step Cross Member Frame Steps For Peterbilt With 7.875 Bolt Spacing * High Quality Crossmember Frame Step * Made Of Stainless Steel * Two Steps * 7.875 Bolt Spacing * Sold Individually * Warranty On Crossmember Frame Step Against Defects In Workmanship...

Front Axle Air Ride Kit Without Air Springs * High Quality Air Ride Kit* Without Air Springs * Fits Various Models* Note-Some Models Need Shock Mount Kit* Sold Individually* Warranty On Air Ride Kits Against Defects In Workmanship & Material From Date Of...

6.3 Inch Continental Air Spring Cabin, Replaces 75313, SC29B093, SC29-B093 * High Quality Air Spring Cabin* 6.3 Inch Design Height* 2.99 Inch Top Plate Diameter* Sleeve Type* Load At 80 PSI- 904* Load At 100 PSI- 1130* Bumper- No* Made In USA* Sold...

Cab-Sleeper Air Spring Fits Peterbilt * High Quality Air Spring* Dimensions:- Design Height: 7 Inch - Max Diameter: 5.6 Inch- Max Height: 15.4 Inch - Minimum. Height: 4.00 Inch - Top Plate Diameter (A): 2.99 Inch - Bottom Plate Diameter (C): 2.29 Inch *...

Metal/Rubber Exhaust Brake Actuator & Brake Solenoid Flange * High Quality Exhaust Brake Actuator/ Brake Solenoid* Flange Material: Metal, Rubber* Housing Color: Silver* Mount Type: Screw On* Mounting Hardware Included: No* Package Contents: 1 Brake...

9 Gauge Aluminum 12 X 25 X 28 Inch Step Box With Large Mouth * High Quality Step Box* 9 Gauge Aluminum* Dimensions:- 12 Length - 28 Inch Width - 25 Height* Large Mouth* Made In USA* Sold Individually * Warranty On Step Boxes Against Defects In...

Low Air Leaf Air Bag Fits Peterbilt * High Quality Air Bag* Air Supply Is Separate From Mounting Studs* Sold Individually* Warranty On Air Bags Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...

Rear Crossmember Cover Fits Peterbilt By Chrome Shop MafiaEnhance The Look Of The Back End Of Your Frame With This Shiny Crossmember Cover. It Is Made Of Stainless Steel And Is Corrosion Resistant. The Cover Fits Peterbilt 377, 378, And 379 Models. *...

33.50 Inch Tapered Crossmember With Cutouts For Peterbilt * High Quality Rear Crossmembers * Made Of Steel* 33-7/16 Inch Overall Length* 1/4 Inch Thick* 4.50 Inch Height* 90-Dg Bend Bottom Angle* 110-Dg Bend Upper Angle* 30.50 Inch C To C Bolt Holes*...