Caterpillar Inc. (Caterpillar) is recalling all 2016 Navistar CT660S trucks equipped with certain Spicer D or E series steer axles. The castellated nut on the
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Defect Description
Caterpillar Inc. (Caterpillar) is recalling all 2016 Navistar CT660S trucks equipped with certain Spicer D or E series steer axles. The castellated nut on the steer axles may not be properly torqued, allowing the tie rod to loosen.
Consequences
If the tie rod loosens, it may disconnect from the steering knuckle, causing a complete loss of steering and increasing the risk of a crash.
Solution
Caterpillar will notify owners, and dealers will tighten the castellated nut and tie rod, replacing them as necessary, free of charge. The recall began on December 08, 2017. Owners may contact Caterpillar customer service at 1-800-447-4986.
Registered on April 22, 2026