Peterbilt 387 Frame & Chassis

BESTfit Triple Convoluted Air BagPresenting our Air Spring Triple Convoluted, engineered with precision for superior performance. Crafted to perfection, this triple convoluted air spring boasts a load capacity of 5400 lbs at 80 PSI and 6800 lbs at 100...

BESTfit Torque Arm Bolt Kit Fits Peterbilt Air Trac Suspension * High Quality Torque Arm Bolt Assembly Kit* For Peterbilt Air Track Spring Hangers* 4.375 Inch Center To Center Bolt Holes* Includes: 1 Torque Arm Bolt, 2 Compression Washers, 2 Torque Rod...

BESTfit Rolling Lobe Style Air Spring With Plastic BaseLooking for an aftermarket replacement air bag? Our rolling lobe style air bag offers exceptional load capacities, supporting up to 5900 lbs at 80 PSI and 7500 lbs at 100 PSI. With a natural...

BESTfit 1/8 Inch Thrust Angle Shims For Peterbilt With Air Leaf Suspension * High Quality Thrust Angle Shims* Made Of Aluminum Alloy* 1/8 Inch * Heavy Duty* 13/16 Slot Width * Helps Correct Caster Angle Problems * You Will Need To Spread The Load To...

BESTfit 1/16 Inch Thrust Angle Shims For Peterbilt Air Leaf SuspensionsThe offered shim is specifically designed for use with Air Leaf Suspension systems and is constructed from sturdy steel material. Sold as a set of 10, each shim measures 1/16 inch in...

BESTfit 2 Leaf Spring Fits Peterbilt Air Trac SuspensionThe Leaf Spring is designed to fit Air Trac Suspension systems, featuring 2 leaves with a hook on the second leaf for secure attachment. It has a width of 4 inches, with the short end measuring...

BESTfit Rear 2 Leaf Z Spring Fits Peterbilt 300 Series 2004 & OlderThe 2 Leaf Z Spring features a Z spring design with no spring eye, measuring 3.50 inches in width and consisting of 2 leaves with an SS arch. This aftermarket replacement part, not OEM,...

BESTfit Rolling Lobe Air Spring AssemblyThe Air Spring is of the rolling lobe type and is sold individually as an aftermarket replacement part, not OEM. It replaces OE Number W01-358-9203. This item ships directly from the manufacturer and may arrive in...

BESTfit Air Bag For Kenworth AG400L Suspension * High Quality Rear Drive Air Bag* Plastic Base* Rolling Lobe Style* Load (Lbs.) At 80 PSI 5640* Load (Lbs.) At 100 PSI 7070* Natural Freq. (Cpm) 65* Design Height Inch 16* Bottom Plate Type Steel* Top Plate...

BESTfit Semi-Round U-Bolt Kit For Peterbilt Low Air Leaf Suspension * High Quality U Bolt Kit* U Bolt Type Flat Semi-Round Bend* Grade 8* U Bolt Diameter 1 Inch* Width 3.500 Inch* Length 15.500 Inch* Sold As Kit* Warranty On U Bolt Kits Against Defects...

BESTfit Square U-Bolt Fits Peterbilt Low Air Leaf Suspension * High Quality U Bolt Kit* U Bolt Type Square Bend* Grade 8* U Bolt Diameter 3/4 Inch* Width 3.500 Inch* Length 5.125 Inch* Sold As Kit* Warranty On U Bolt Kits Against Defects In Workmanship &...

BESTfit U Bolt Saddle For Peterbilt Low Air Leaf Suspension * High Quality U Bolt Saddle* U Bolt Saddle* 3.5 Inch X 3.625 Inch* Sold Individually* Warranty On U Bolt Saddles Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...