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 2 Leaf 4 Inch Wide Parabolic Spring Replaces TTN12144, 1670556C91, 574696C9 For Volvo VNL Gen II
BESTFIT TRUCK PARTS
$387.99BESTfit Leaf Spring - Replaces 20QE3126, 20QE3126P2, 03-06212 & 3130560The 2 Leaf Parabolic Spring, characterized by its parabolic spring type and two leaves, features standard eye types on both ends. It boasts a width of 4 inches, with a spring eye (S.E...$387.99 -
BESTfit 3/4 X 4 X 8.875 Inch U-Bolt Kit Replaces 680-322-07-25 & K241-309 For Volvo
BESTFIT TRUCK PARTS
$44.05BESTfit 3/4 X 4 X 8.875 Inch U-Bolt Kit Fits VolvoThe U Bolt Kit features a square bend design with Grade 8 specifications, boasting a 3/4-inch diameter for robust fastening. Its dimensions include a width of 4.000 inches and a length of 8.875 inches,...$44.05 -
BESTfit Air Spring For AG100 Kenworth Suspension - Replaces K303-16
BESTFIT TRUCK PARTS
$172.99BESTfit Air Bag Fits AG100 8 Bag Air Suspensions For KenworthThe Air Spring is engineered with a maximum height of 11.40 inches and features threads of 1/4 - 18 NPTF and 1/2 - 13 UNC. It boasts center-to-center measurements of 5.69 inches and 4.12 inches...$172.99 -
BESTfit 6.25 Inch Aluminum Rear Steer Spring Hanger For 4 Inch Spring Replaces 02-02311M001 For Peterbilt 379
BESTFIT TRUCK PARTS
$173.99BESTfit Spring Hanger For 4 Inch Spring Fits Peterbilt 379The Spring Hanger is designed for either the driver or passenger side and is positioned at the rear of the front suspension. It accommodates a 4.0-inch spring with a bolt height of 6-1/4 inches...$173.99 -
BESTfit Single Leaf Z Spring With 5 Hole Shock Bracket Mount For International Rear Z 3.5 Inch Air Spring
BESTFIT TRUCK PARTS
$534.99BESTfit Single Leaf Z Spring Fits International - Replaces 501566C93The Z Spring, featuring a Z spring type design with no spring eye, has dimensions specified for both the spring eye (S.E./L.E.) and the width. The S.E. (spring eye) measures 25-3/4...$534.99 -
On Sale
BESTfit 7/8 X 3.5 X 15 Inch Semi-Round U-Bolt Kit Replaces 1610312C2 For International Rear Z 3.5 Inch Air Spring
BESTFIT TRUCK PARTS
Now: $37.73Was: $53.90BESTfit U-Bolt Kit Fits InternationalThe U Bolt Kit features semi-round bend U bolts made of Grade 8 material, with a diameter of 7/8 inches, a width of 3.500 inches, and a length of 15.000 inches. Sold as a convenient kit, this aftermarket replacement...Now: $37.73Was: $53.90 -
BESTfit 3/4 X 3.5 X 13.25 Inch Semi-Round U-Bolt Kit For International Rear Z 3.5 Inch Air Spring
BESTFIT TRUCK PARTS
$36.97BESTfit U-Bolt Kit Fits International - Replaces 586593C1, 590575C1 & 590621C1 * High Quality U Bolt Kit* U Bolt Type Semi-Round Bend* Grade 8* U Bolt Diameter 3/4 Inch* Width 3.500 Inch* Length 13.250 Inch* Sold As Kit* Warranty On U Bolt Kits Against...$36.97 -
BESTfit 3.375 X 8.353 Inch OAL U-Bolt Top Plate For International Rear Z 3.5 Inch Air Spring
BESTFIT TRUCK PARTS
$53.03BESTfit U-Bolt Top Plate Fits International - Replaces 16005070 & 572112C1 & 572112C2 * High Quality U Bolt Top Plate* 3-1/2 Inch* Air Suspension Only* Zin Spring* 3.375 Inch* 6.750 Inch* 8.353 Inch* Sold Individually* Warranty On U Bolt Top Plates...$53.03 -
On Sale
BESTfit Air Spring Replaces OE Numbers 1670043C1 1686386C1 For International Rear Z 3.5 Inch Air Spring & Rear Corporate Suspensions
BESTFIT TRUCK PARTS
Now: $118.00Was: $235.99BESTfit Air Spring Fits International - Replaces 1670043C1 & 1686386C1 * High Quality Air Spring* Bottom Plate Type A*Bottom Plate Center To Center Diameter (D) 2.25* Sold Individually* Warranty On Air Springs Against Defects In Workmanship & Material...Now: $118.00Was: $235.99 -
BESTfit Air Spring For International Rear Z 3.5 Inch Air Spring & Rear Corporate Suspensions
BESTFIT TRUCK PARTS
$234.99BESTfit Air Spring Fits International - Replaces 1660581C1 & 501559C1 & 501559C2 * High Quality Air Spring* Type Rolling Lobe* Load (Lbs.) At 80 PSI 5900* Load (Lbs.) At 100 PSI 7500* Natural Freq. (Cpm) 71* Design Height Inch 11* Bottom Plate Type...$234.99 -
BESTfit 2.467 X 4.375 Inch Torque Rod Bushing For International Rear Z 3.5 Inch Air Spring & Rear Corporate Suspensions
BESTFIT TRUCK PARTS
$45.99BESTfit Torque Rod Bushing Fits International - Replaces 57256 * High Quality Torque Rod Bushing* 0.625 Inch* 2.467 Inch* 4.375 Inch* Sold Individually* Warranty On Torque Rod Bushings Against Defects In Workmanship & Material From Date Of Purchase***...$45.99 -
BESTfit 18.125 Inch Torque Rod For International Rear Z 3.5 Inch Air Spring & Rear Corporate Suspensions
BESTFIT TRUCK PARTS
$124.99BESTfit Torque Rod Fits International - Replaces 493920C3, 588117C91 & SB1474 * High Quality Torque Rod* 18.125 Inch* Rear Bolt Hole 5/8 Inch* Side A Straddle* Side A Bushing Trb6820* Side A Angle 15* Side B Straddle* Side B Angle 15* Center To Center...$124.99