Wentzville, MO

2252 East Pitman Ave.
Wentzville, MO 63385
636-332-3854

Customer Support Manager
Kurt Koester
636-445-0051
kkoester@clarkepsi.com 

Sales Manager
Caleb Black
636-751-1166
cblack@clarkepsi.com

• Monday – Friday 7:00 a.m. to 11:30 p.m.
• 24 Hour On Call Support: (636) 332-3854

• Operates 2 Shifts
• Over 20,000 sq. ft. of Service Shop Space
• 20 Work Bays
• Field Service Trucks
• Power Test Chassis Dyno Capable of 700 HP
• Transmission Dyno
• Accomodates Tractors & Buses of Various Lengths
• Factory Trained Technicians in DDC, MBE, & AllisonTransmission

• Daimler Trucks North America (DTNA) All Makes, Alliance
• Detroit Diesel engine parts
• Allison Transmission: Allison Transmission assemblies, Retran rebuilt transmissions, Allison Transmission parts
• Muncie Power Products PTO (power take offs)
• Interstate Batteries
• MTU parts, DDC 2 cycle parts
• Perkins Engines: assemblies, engine parts
• Sterling Truck parts
• Weller Transmission: Allison rebuilt transmissions, differentials, manual transmissions, power steering pumps
• MASCOT Drivelines
• Skyline Emissions DPF & DOCs
• Reviva Engines rebuilt engines
• Transynd: Allison transmission fluid
• And thousands more

Contact us today to learn more about our all-makes, all models parts solutions.

• Heavy Duty Engine PM Services
• Transmission Repair
• A/C Services 
• General Truck Repair
• Chassis & Transmission Dyno
• 24 Hour on Call Support
• WheelTime Service Center
• Bus & Coach Services
• DOT Inspections
• Road Service
• Military Equipment
• Authorized Geotab Reseller & Installer
• Official EnerDel Distributor
• Appointed Perkins Distributor
• Webasto Sales & Installation
• Thomas Built Bus Parts & Service
• DDC Series 60 Warranty Certified
• MBE 4000 Warranty Certified
• MBE 900 Warranty Certified
• DD15 Warranty Certified
• DD13 Warranty Certified
• Allison Warranty Certified
• EGR Warranty Certified
• Vehicare Fleet Solutions Network