truck manuals

Caterpillar C10/C12 Service Manual (8YS/9NS)


Print version. OEM Complete Caterpillar factory service manual for the C-10 & C-12 engine for starting serial # 8YS & 9NS.

SKU: TMRE1320 Category:
Caterpillar C10/C12 Service Manual (8YS/9NS)
This is a complete factory printed Caterpillar C10/C12 service manual, for use with engine serial number prefix 8YS or 9NS.
If you are performing any repair or overhaul on this Caterpillar engine, you need the proper information in order to ensure you can perform the job correctly.  This manual is factory printed by the Caterpillar print shop, so you can be sure the information is correct. has worked with the Caterpillar print facility for many years, ensuring the correct factory service information is available.  We support fleets, municipalities, water districts, independent service facilities & more.

At we have always felt strongly that it is critical that the industry mechanics be supplied with the correct information.  Important info such as torque specifications, dimensions & procedures, electronic diagnostic information and much more is made available.  And it’s the exact information for your specific engine and serial number group.

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.

Caterpillar C10/C12 Service Manual Service manual contents:

  • Safety info
  • General torque info
  • Specifications manual
  • Systems Operation, Testing and Adjusting
  • PTO supplement (if used)
  • Disassembly & assembly manual
  • Bendix-Westinghouse air compressor manual
  • Troubleshooting introduction
  • Electrical troubleshooting
  • Mechanical troubleshooting
  • Performance troubleshooting
  • OEM systems troubleshooting
  • Operation & maintenance

The customer has two great advantages when dealing with

  1. Factory printed manuals
  2. 97% of all orders are shipped within 24 hours

Manufacturer may change contents without prior notice

Caterpillar C10/C12 Service Manual | Diesel Diagnostic Equipment

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

Caterpillar C10/C12 Service Manual (8YS/9NS)


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Caterpillar C10/C12 Service Manual (8YS/9NS)