Semi-Truck Frame Chassis Parts
Need semi-truck frame chassis parts? Choose from high-strength frame rails, crossmembers, and reliable fifth wheel replacement parts to keep your rig solid. Enjoy a smooth ride with quality springs and shock absorbers. Ensure stable control with our durable control arms and steering linkages. Looking for axles or frame steps? We've got those too. Shop at 4 State Trucks!
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BESTfit Crewson Type Automatic Slack Adjuster 5.5 Inch Replaces CB25300, CB52336, E6990
BESTFIT TRUCK PARTS
$89.75Crewson Type Automatic Slack Adjuster 1.25 -24 X 5.5 Inch Arm With Offset Clevis - Slack Adjuster - Includes - (2) Installation Gauges - Bushings - Clevis Kit - 1 1/4 Inch- 24 X 5 1/2 Inch Arm - Automatic -...$89.75 -
BESTfit MGM ADB Spring Brake TRB2424DT051, K043270
BESTFIT TRUCK PARTS
$520.99Air Brake Chamber - Combination, Air Disc Model - MGM ADB Spring Brake - Nylon Diaphragms - 360 Aluminum Center Case - 2.5 Inch Stroke - Epoxy Coated Head - Non-Pressure Chamber - Lower Push Rod - Molded Nitrile...$520.99 -
BESTfit Long Stroke Air Brake Chamber 12 Inch - No Core Charge TR3030LP3 INTRAAX Replaces 3230551, 3230551X
BESTFIT TRUCK PARTS
$228.99Air Spring Brake TR3030LP3 Intraax - Non-clevis - Spring Brake - 3.0 Inch Long Stroke - 12 Inch Push Rod - HD Nylon Reinforced Diaphragms - Epoxy Coated Head - Non-Pressure Chamber - Lower Push Rod - Return...$228.99 -
BESTfit Service Chamber C20 Replaces 1420001
BESTFIT TRUCK PARTS
$144.992.25 Inch Type 20 Standard Stroke Service Brake Chamber - Service Chamber - Nylon - Dimensions: - 2.25 Inch Stroke Length - 5.125 Inch Pilot Diameter - Epoxy Coated Formed Steel Pressure And Non-Pressure Caps -...$144.99 -
BESTfit Air Disc Brake Caliper Rationalized ADB22X Driver Side Replaces K081259, K097845, K097849
BESTFIT TRUCK PARTS
$854.99Air Disc Caliper Rationalized ADB22X - Air Disc Caliper - 12 Degree Chamber Mounting - Steer And Drive Axle - Does Not Include Carrier - Sold Individually - Warranty On Air Disc Calipers Against Defects In Workmanship &...$854.99 -
BESTfit Center Bolt 1/2 - 20 X 9 Inch W/ 3/4 Inch Head for Front Spring
BESTFIT TRUCK PARTS
$6.24BESTfit Center Bolt with 3/4 Head for Front Spring - Center Bolt - 1/2 X 9 Inch - With 3/4 Head For Front Spring - Sold Individually - Warranty On Center Bolts Against Defects In Workmanship & Material From Date Of...$6.24 -
BESTfit Camshaft 1.50 Inch-10 Passenger Side E2794, R607031, 17-568, M16Wk10310
BESTFIT TRUCK PARTS
$70.68Brake Camshaft - Camshaft - Length L- 17.375 Inch - Length A- 2.219 Inch - Splines- 1.50 Inch-10 - Journal Diameter- 1.50 Inch - Passenger Side - Sold Individually - Warranty On Camshafts Against Defects In...$70.68 -
BESTfit Camshaft Repair Half Kit Replaces E20902, 4370391
BESTFIT TRUCK PARTS
$11.21Camshaft Repair Half Kit - Camshaft Repair Half Kit - Kit Consists: - (3) Camshaft Bushing - (4) Washer - (2) Camshaft Lock - Sold Individually - Warranty On Camshaft Repair Half Kits Against Defects In Workmanship...$11.21 -
BESTfit Rear Spring Bolt Kit For Isuzu NPR
BESTFIT TRUCK PARTS
$31.61BESTfit Isuzu Rear Spring Bolt Kit W/ Shackle Pin, Bronze Bushing, Lock Washer, Grease Fitting & Hex Nut - Bolt Kit - Consists Of - (1) Shackle Pin - (1) Bronze Bushing Metric - (1) 7/8 Inch Lock Washer - (1) Grease...$31.61 -
BESTfit Crewson Type Slack Adjuster 1-1/4 In-24 X 5.5 Inch Arm - Straight Clevis
BESTFIT TRUCK PARTS
$89.75Crewson Type Slack Adjuster 5.5 Inch Arm With Straight Clevis - Slack Adjuster - Includes - Installation Gauge - Bushings - Clevis Kit - 1-1/4 Inch-24 X 5-1/2 Inch Arm - Automatic - Crewson Type - Made In...$89.75 -
BESTfit Spring Brake Chamber 2.5 Inch Stroke TR3030 For Hendrickson Trailer
BESTFIT TRUCK PARTS
$232.993030 Type Standard Stroke Spring Brake Chamber - Spring Brake - Nylon - Stroke Length- 2.50 Inch - Pushrod 12.00 Inch In Caged Position - Epoxy Coated Head - Non-Pressure Chamber - Lower Push Rod - Weather seal...$232.99 -
BESTfit Parabolic Extra Leaf - 1,500 Lbs. Capacity
BESTFIT TRUCK PARTS
$182.99BESTfit Leaf Spring Full Tapered Parabolic Extra Leaf - Parabolic Extra Leaf - 26 Inch S.E. - 30 Inch L.E. - 4 1/4 Inch Arch - Capacity- 1500 Lbs. - Made In USA - Sold Individually - Warranty On Parabolic Extra...$182.99