Peterbilt 379 Frame & Chassis

Chrome Acorn Nut CoverUpgrade the appearance of your vehicle's nuts and bolts with our chrome-plated plastic acorn nut cover. Measuring 7/16 inch by 5/8 inch and featuring an acorn style, this aftermarket replacement part offers a sleek and polished look...

Chrome Die Cast Acorn Nut CoverUpgrade the appearance of your vehicle's nuts with our chrome-plated die-cast zinc acorn nut cover. Measuring 11/16 inch in height and designed to fit 9/16 inch nuts, this aftermarket replacement part adds a sleek and...

BESTfit Long Stroke Welded Clevis Spring Brake W/ 3 Inch Stroke LengthUpgrade your braking system with our Long Stroke Spring Brake Chamber, designed for optimal performance and durability. Featuring a welded clevis and Type 30/30 sealed construction,...

BESTfit Square Bend Top U Bolt KitUpgrade your suspension system with our U-bolt Kit, featuring a sturdy 3/4 inch X 4 inch X 10 inch design with a square bend top. Sold individually, this aftermarket replacement part ensures a secure fit and reliable...

BESTfit PR Plus Height Control ValveIntegrate our Control Valve into your system, replacing OE numbers G90-1099-095, G901099095, 90555375, and 90555121. This aftermarket replacement part ensures precise control and reliable performance. Sold...

BESTfit 3 Leaf Parabolic Spring W/ 8200 Lb. Capacity Fits Peterbilt 1982-Newer * High Quality Parabolic Spring* 4XPD/447 3/788 25-1/2X26-3/4 C 5-1/4 2/RNK* 100XPD/11, 3/20 648X679 C 134 2/RNK* 8,200lbs Capacity* Sold Individually* Warranty On Parabolic...

BESTfit Single Leaf Z Spring For HendricksonUpgrade your vehicle's suspension system with our aftermarket Z Spring, designed for optimal performance and durability. This single leaf spring features a thickness of 2.0 inches and is equipped with two holes...

BESTfit Air Spring Rolling LobeEnhance your vehicle's performance and stability with our top-of-the-line Air Spring Rolling Lobe. Designed for durability and reliability, our rolling lobe boasts a load capacity of up to 7200 lbs at 100 PSI, ensuring...

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 Spring Bushing Kit For Airleaf ModelsLooking for a spring bushing kit to maintain your vehicle's suspension system? Our aftermarket replacement part is precisely what you need. This kit, measuring 9.5 inches in length, 4 inches in width, and 4...

BESTfit Fixed Rod Rebushable Torque Rod With 1.25 Inch Shaft - Replaces 03-01764, 03-01781, 03-04839, 1AAA53Looking to replace your torque rod with a reliable aftermarket solution? Our aftermarket replacement part is precisely what you need. This fixed...