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Hendrickson, International and Peterbilt torque rod bushing. Fits Hendrickson 340-520 Series; Model 343, 403, 463, 503, 523 and Peterbilt Air Trac; Single/Tandem Axle.
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ATRO Engineered Systems (ATRO) is a supplier of heavy-duty proprietary polyurethane suspension parts designed to deliver longer-lasting performance and reliability. ATRO’s free-rotation bushings with proprietary polyurethane material deliver longer life, lower cost-per-mile bushings that are superior to standard rubber or other polyurethane bushings. ATRO bushings are manufactured in the U.S.A and have proven to last three to five times longer than standard rubber and polyurethane bushings.
ATRO’s free-rotation design allows the inner piece to rotate freely, eliminating bushing “wind-up” and allowing less stress on the bushing material and ultimately the suspension components, thereby helping to prevent premature failure.
ATRO Engineers Systems’ patented designs, state-of-the-art manufacturing plant and extensive aftermarket distribution network make them an industry leader developing products which improve performance, eliminate downtime, and help control costs.
The Atro warranty covers polyurethane to metal de-bonding, loose fit of internal components or signs of wear that will lead to premature failure under normal use for the time periods listed below.
On all Atro products with the following exceptions noted below.
On 2” eye torque rods.
On LP50 Series Hendrickson pads and equalizers.
Atro does not offer warranty coverage on installation tools
Any warranty is void if product condition shows signs of overloading or improper application. Mixing rubber bushings and Atro bushings on the same application voids all warranties. You can view the full details of Atro’s warranty here.
Atro handles all of its warranty claims, please contact ATRO customer service by phone at 1-800-325-6114 for approval and to obtain an RMA#.
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