truck manuals

Caterpillar C15/C16/C18 Service Manual (6NZ, 7CZ, W1A, CJP, MDP, MEP)


Print version. OEM complete factory service manual for the C15, C16 & C18 engines with serial number starting with 6NZ, 7CZ, W1A, CJP, MDP & MEP.

Caterpillar C15/C16/C18 Service Manual (6NZ, 7CZ, W1A, CJP, MDP, MEP)
If you are performing any service, diagnostics, repair or overhaul on this Caterpillar C15/C16/C18 engine, you need the proper information in order to ensure you can perform the job correctly. has worked with the Caterpillar print facility for many years, ensuring the correct factory service information is available.  Whether you are involved with fleets, municipalities, independent service facilities, this manual is the one you need.  At we feel that it is critical that the industry mechanics be supplied with the correct information.  Torque specifications, dimensions & procedures, electronic diagnostic information is all at your fingertips.

The changes in the trucking industry over the decades have made it critical to “do the job once, do the job right”.   Procedures that may have been acceptable years ago would now likely cause rapid failures if they were used on present day engines & drivetrains.

The customer has two great advantages when dealing with

  1. Factory printed manuals
  2. Most of all orders are shipped within 24 hours
This manual is printed by the Caterpillar print shop so you can be sure the information is correct.

Factory printed manual.  OEM complete factory service manual.

Engines:  Caterpillar C15/C16/C18

Serial Number Prefix: 6NZ, 7CZ, W1A, CJP,  MDP & MEP.

Coverage includes:

  • Specifications
  • Systems Operation, Testing & Adjusting
  • Disassembly & Assembly
  • Troubleshooting
  • Special Instructions for Cat Messenger
  • Electronic PTO Installation & Application Guide
  • Operation & Maintenance Manual
  • Air Compressor Manual
  • More

This is a complete Caterpillar factory OEM service manual.

Caterpillar reserves the right to make changes without prior notice

Caterpillar C15/C16/C18 Service Manual

Manuals normally ship out within 24 hours.

Need more factory service manuals?  Click here.

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While this is a factory manual, we are not representing to be an agent of this manufacturer

Caterpillar C15/C16/C18 Service Manual (6NZ, 7CZ, W1A, CJP, MDP, MEP)


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Caterpillar C15/C16/C18 Service Manual (6NZ, 7CZ, W1A, CJP, MDP, MEP)