Peterbilt Frame & Chassis
Strengthen the stability of your rig with frame and chassis parts for Peterbilt trucks. Find heavy duty replacement hardware for suspension stability, ride comfort, and stronger towing/trailer connectivity. Explore Peterbilt-specific OE replacement parts to match your Peterbilt model number, suspension style, and chassis configuration
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Peterbilt 24 Inch Chrome-Plated Aluminum Step Plate W/ Logo Cutout Rubber Insert
LIFETIME NUT COVERS
$697.99Durable 24-Inch Step Plate Featuring Raised Rubber Grip and Logo CutoutUpgrade your rig with a heavy-duty 24" step plate built for traction and style. Designed to fit Peterbilt models, this step plate is made from chrome-plated billet aluminum and...$697.99 -
Smooth Stainless Steel DPF Cover for Peterbilt 389 (2008–2023)
VALLEY CHROME PLATING
$401.99Smooth Stainless Steel DPF Cover For Peterbilt 389 2008 - 2023Enhance the appearance and protection of your Peterbilt 389's Diesel Particulate Filter (DPF) system with this premium smooth stainless steel DPF cover. Designed for models from 2008 to 2023,...$401.99 -
TPHD Type 24 Long Stroke Air Brake Diaphragm - 7 Inch OD
TPHD
$11.44Replacement 7 Inch Air Chamber Diaphragm - Type 24 - Diaphragm - Dimensions: - 2.05 Inch Height - 7.0 Inch Outer Diameter - Type 24 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$11.44 -
TPHD Type 16 Air Brake Diaphragm - 6.16 Inch OD
TPHD
$5.08Replacement 6.16 Inch Air Chamber Diaphragm - Type 16 - Diaphragm - Dimensions: - 1.295 Inch Height - 6.16 Inch Outer Diameter - Type 16 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$5.08 -
TPHD Type 24 Air Brake Diaphragm - 7 Inch OD
TPHD
$5.06Replacement 7 Inch Air Chamber Diaphragm - Type 24 - Diaphragm - Dimensions: - 1.315 Inch Height - 7 Inch Outer Diameter - Type 24 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$5.06 -
TPHD Type 9 Long Stroke Air Brake Diaphragm - 5 Inch OD
TPHD
$5.08Replacement 5 Inch Air Chamber Diaphragm - Type 9 - Diaphragm - Dimensions: - 1.375 Inch Height - 5 Inch Outer Diameter - Type 9 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship & Material...$5.08 -
TPHD Type 12 Air Brake Diaphragm - 5.5 Inch OD
TPHD
$5.07Replacement 5.5 Inch Air Chamber Diaphragm - Type 12 - Diaphragm - Dimensions: - 1.295 Inch Height - 5.5 Inch Outer Diameter - Type 12 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$5.07 -
TPHD Type 36 Long Stroke Air Brake Diaphragm - 7.875 Inch OD
TPHD
$7.62Replacement 7.875 Inch Air Chamber Diaphragm - Type 36 - Diaphragm - Dimensions: - 1.905 Inch Height - 7.875 Inch Outer Diameter - Type 36 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$7.62 -
TPHD Type 20 Air Brake Diaphragm - 6.55 Inch OD
TPHD
$4.35Replacement 6.55 Inch Air Chamber Diaphragm - Type 20 - Diaphragm - Dimensions: - 1.295 Inch Height - 6.55 Inch Outer Diameter - Type 20 - Sold Individually - Warranty On Diaphragms Against Defects In Workmanship &...$4.35 -
BESTfit Round U Bolt Kit 7/8 X 3 X 16.5 Inch
BESTFIT TRUCK PARTS
$85.997/8 X 3 X 16.5 Inch Round U Bolt Kit - U Bolt Kit - Includes: - U Bolts - Nuts - Washers - 7/8 X 3 X 16.5 Inch - Sold Individually - Warranty On U Bolt Kits Against Defects In Workmanship & Material From Date...$85.99 -
BESTfit Spigot Cap Type 1 Replaces 800201, E9571, 3578484C1, R309571 For Chalmers
BESTFIT TRUCK PARTS
$54.99Chalmers Spigot Cap - Spigot Cap Chalmers - Made In USA - Sold Individually - Warranty On Spigot Cap Chalmers Against Defects In Workmanship & Material From Date Of Purchase - Aftermarket Replacement Part (Not OEM) - This...$54.99 -
BESTfit 32 7/8 Inch C To C Cabin Torque Rod - 2993-4032 For Peterbilt, Kenworth
BESTFIT TRUCK PARTS
$150.99Cabin Torque Rod With 5/8 Inch Through Bolt Both Ends - Torque Rod - 32 7/8 Inch C To C - (2) Bushings (Included) - Sold Individually - Warranty On Torque Rods Against Defects In Workmanship & Material From Date Of...$150.99