Who we are
CSTH LLC is the parent company behind truck bodies and aftermarket parts brands serving ready-mix concrete and refuse operators across North America—headquartered in Cynthiana, Kentucky.
Cynthiana, Kentucky
Built for demanding fleet environments
CSTH LLC (Commercial Specialty Truck Holdings, LLC) is based in Cynthiana, Kentucky. As the parent company of Continental Mixers, E-Z Pack Trucks, One Source Parts, and Dynamic Towing and Manufacturing, CSTH is a leading producer of truck bodies and related aftermarket parts.
CSTH manufactures products to perform at the highest levels for the challenging operator environments of the ready-mix concrete and refuse industries. We understand and are committed to growing loyal customer relationships and serving the specialized needs of concrete and refuse fleet operators across North America.
Four companies, one specialty focus
Each CSTH company serves a distinct lane in the vocational truck market—with manufacturing, parts, and support aligned to how fleets actually run.
Ready-mix
Continental Mixers
Mixer bodies and configurations engineered for uptime, payload, and operator confidence on every pour.
Explore ready-mix
Refuse & recycling
E-Z Pack Trucks
Rear, side, and front loaders built for route-heavy collection and dependable compaction in the yard.
Explore refuse
Parts & service
One Source Parts
OEM and aftermarket parts for mixers, refuse, and towing—with Kentucky and Tampa distribution and fitment support.
Parts & service
Towing & recovery
Dynamic Towing & Manufacturing
Wreckers, carriers, and vocational hydraulics for operators who need field-ready recovery equipment.
Explore towingPerformance, relationships, and fleet reality
- Truck bodies and components proven in high-cycle ready-mix and refuse environments
- Aftermarket parts depth through One Source Parts for mixed fleets and OEM lines
- Long-term customer relationships grounded in specialized support, not catalog-only transactions
- North American reach with manufacturing and distribution rooted in Kentucky
Work with CSTH and our brands
Whether you run ready-mix drums, refuse routes, or recovery trucks, start with the brand that matches your equipment—or talk with One Source Parts when you need parts on the ground.