Frame & Chassis

BESTfit Battery Box Cover With Built In Center StepProtect your battery with this economy style diamond plate aluminum battery box cover. It is 45 inches long and fits Kenworth W900A and W900B Kenworth models. The cover is made in North America and is...

BESTfit Upper Step Panel Fits Kenworth* High Quality Step Panel* Made Of Aluminum * 32 Inch Length* Sold Individually* Warranty On Step Panel Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part...

BESTfit Diamond Plate Battery BoxAre you looking for a strong box to cover your battery at a great price? 4 State Trucks have what you need with this economy complete assembly battery box. Constructed with a durable and great looking diamond plate...

33.50 Inch End Of Frame Crossmember Fits Peterbilt* Made Of High Quality Aluminum* Rear Crossmember* 33.50 Inch Overall Length* 4.50 Inch Height* 90-Dg Bend Bottom Angle* 110-Dg Bend Upper Angle* 30.50 Inch C To C Bolt Holes* Sold Individually* Warranty...

Peterbilt Stainless Steel U-Bolt For Mounting 9.5 Inch Diameter Air TankThis 9.5 Inch Diameter Air Tank Mounting U-Bolt Fits Peterbilt 359, 378 and 379 is designed to replace your OE G34-6009 factory style mounting U-bolts. Manufactured from the highest...

BESTfit 8 Inch Diameter Air Tank Mounting U-BoltThis BESTfit 8 Inch Diameter Air Tank Mounting U-Bolt Fits Peterbilt 359, 378 and 379 is designed to replace your factory style mounting U-bolts. Manufactured from the highest quality stainless steel and...

BESTfit 1/16 Inch Thrust Angle Shims For Peterbilt Air Leaf Suspensions* High Quality Shim* Material: Steel* Thrust Angle* For Air Leaf Suspension* Set Of 10* 1/16 Inch* Sold As Set* Warranty On Shims Against Defects In Workmanship & Material From Date...

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 3.625 To 19.625 Inch Adjustable Leveling Valve Linkage Kit* High Quality Leveling Valve Kit* 3.625 To 19.625 Inch Adjustable * Zinc Plating Linkages* Rubber Grommets And Seal* Hose Clamps And Hardware (Included)* Sold As Kit* Warranty On Leveling...

BESTfit Frame-Mount Bump Stop Fits Peterbilt New Low Air Leaf Suspensions* High Quality Bumper Stop* Mounts To Frame* Stops Suspension Spring Travel* Sold Individually* Warranty On Bumper Stop Against Defects In Workmanship & Material From Date Of...

BESTfit 6.625 Inch Center To Center U-Bolt Saddle For Peterbilt New Low Air Leaf Suspension* High Quality U Bolt Saddle* 8.125 Inch Overall Length* 6.625 Inch Center To Center* Sold Individually* Warranty On U Bolt Saddle Against Defects In Workmanship &...

BESTfit Air Spring Stud Fits Peterbilt New Low Air Leaf Suspension* High Quality Air Spring Stud* 8.04 Inch Overall Length* Sold Individually* Warranty On Air Spring Stud Against Defects In Workmanship & Material From Date Of Purchase***High Quality...