Stemco Steering King Pin Set
Stemco Steering King Pin Sets: Engineered for Heavy-Duty Steer Axles
Steering king pin sets are among the most safety-critical components on any commercial truck — and few manufacturers have invested more deeply in this category than Stemco. Operating under the Stemco Kaiser product family, Stemco's king pin kits are designed specifically for the punishing demands of heavy-duty steer axles, where constant turning, high load stress, and road vibration accelerate wear faster than almost any other suspension junction.
The QwikKit®: Stemco's Flagship King Pin Solution
At the heart of Stemco's steering king pin lineup is the QwikKit®, a no-ream king pin kit that has redefined what fleet shops expect from a steer axle service. Stemco No-Ream steel bushings and pins are grooved to provide an optimal stream of lubrication to high-wear areas, holding 300% more grease than standard king pin sets. The proprietary high-chrome, high-carbon tool steel is found only in Stemco king pin kits, balancing strength and resilience — engineered to withstand the constant turning and pounding placed on the steering knuckle and axle over the life of the vehicle.
With higher impact strength, improved durability, and consistent lubrication, QwikKit® King Pin Kits last up to 4 times longer than OE or aftermarket king pins. For fleet managers, that translates directly to extended service intervals and reduced total cost of ownership.
Safety and Installation Features That Set Stemco Apart
The QwikKit is designed with performance, endurance, and safety in mind, incorporating features like hardened lock pins to minimize axle damage, lip seals for effective contaminant protection, and self-cleaning bushings to expel debris and reduce premature wear. These aren't incremental improvements — they represent a systematic approach to keeping the steer axle pivot point clean, lubricated, and tight over the long haul.
Replacing traditional king pins can sometimes be a long, greasy process. The proprietary design of the QwikKit king pin allows it to be installed by technicians in a fraction of the time of a traditional OE or aftermarket king pin. This speed advantage is especially valuable in fleet environments where bay time is money.
A Full Range of King Pin Kit Options
Stemco Kaiser offers the broadest coverage of king pin kits with over 250 options, including 100 different QwikKit applications. They also provide full coverage with the Plus Kit™ and ECONO KIT. In markets that require a bronze bushing, Stemco offers the Stemco Kaiser Plus Kit.
The Stemco Kaiser Plus Kit® has been the premium "no-ream" bi-metal king pin kit, with included pre-sized bi-metal bronze bushings that provide the same fit as a tightly reamed king pin installation. For shops that still prefer a traditional ream approach, the ECONO KIT delivers the quality of a ream installation at the lowest product cost in the Stemco Kaiser lineup, and is made using Stemco's high-quality manufacturing process in the USA.
Wide Axle Compatibility
Stemco Steering King Pin Sets are engineered as solutions for truck king pins, with parts designed for Spicer, Dana, and Eaton axles. The QwikKit product range also covers International/Navistar and Volvo applications, making it a practical choice for mixed commercial fleets running diverse equipment.
Whether you are servicing a single owner-operator truck or managing a large fleet, Stemco's Steering King Pin Sets deliver the precision engineering, extended longevity, and installation efficiency that keeps commercial vehicles steering safely down the road. Browse the full selection below to find the right kit for your steer axle application.