This is a brand new genuine OEM Service manual from Caterpillar for the 3406B Diesel Truck Engines, for serial number prefixes. This is the service manual that Caterpillar dealer technicians refer to. It contains information on Specifications, Disassembly and Assembly, Testing & Adjusting, Troubleshooting, Schematics, and Operation and Maintenance Information. Don't miss your chance to get a service manual for your machine at a great price!