C9 Valve Cover

[markpj23]

New service bulletin from CAT Truck Engine News:
An Improved Valve Cover Is Available
for Certain C9 Engines
SMCS Code: 1107; 1120
Engine:
C9 (S/N: MTB1-Up; MFF1-Up; 9DG1-Up;
LFR1-Up)
Truck Engines:
C9 ON-HIGHWAY (S/N: ETK1-Up)
Reference: Refer to Special Instruction, REHS4840
for more information.
Description Of Change: The composite valve cover
has been redesigned for increased service life.
Adaptable To: The updated valve cover must be installed
with the required studs, bolts, and spacers. The
existing studs, bolts, and spacers must not be reused.
Refer to Table 1 for a list of required parts.

Table 1:
Required Parts
Qty New Part Number Part Name Former Part Number
7 211-3445 Studs
358-7872 Valve Mechanism
Cover Gp
263-7825
358-7873 Valve Mechanism
Cover Gp
263-7827
11 358-7876 Spacer Sleeves
11 8T-6912 Bolts

Refer to Table 2 for a list of effective part numbers.
Table 2
Effective Serial Numbers
C9A10939-Up
ETK00589-Up
LFR00101-Up
MFF00479-Up
MTB02021-Up

[kketterling]

Mark. My serial number is C9S01083 so if I read it correctly I'm not affected, right?

Thanks

[markpj23]

Originally Posted by kketterling

Mark. My serial number is C9S01083 so if I read it correctly I'm not affected, right?

Thanks

I think so but the serial number sequences are not straightforward. Only CAT will know for sure....

Mark