SEBD-6881

SB-10052474-9558
truck engine news
product support information for Cat truck engine users
17 May 2013
Table of Contents
N e w Tu r b o c h a r g e r s a n d A c c e s s o r i e s A r e N o w U s e d o n
C e r t a i n H i g h H o r s e p o w e r C 1 3 Tr u c k E n g i n e s . . . . . . . . . . . . . . . . . 1
SMCS Code: 1052; 1053
Engine:
C13 (S/N: LEE1-Up)
Supplements
R e p l a c e m e n t o f t h e Va r i a b l e Va l v e A c t u a t o r A s s e m b l y a t
O v e r h a u l I s R e c o m m e n d e d o n C e r t a i n O n - H i g h w a y Tr u c k
Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SMCS Code: 1130
Engine:
C11 (S/N: KCA1-Up)
C13 (S/N: KCB1-Up; LEE1-Up)
C15 (S/N: SDP1-Up; BXS1-Up; MXS1-Up; NXS1-Up)
i05339245
Adaptable To: The new 20R-1176 Turbocharger
Gp is a direct replacement for the existing 357-2110
Turbocharger Gp and the 20R-0579 Turbocharger
Gp for the serial numbers listed above.
Refer to the tables below for the correct part numbers
needed to make the repair.
Note: Failure to install the new turbocharger drain line
can cause the turbocharger seal to fail and pass oil into the air system.
The new parts listed in the tables are adaptable back
to the first production of the above listed truck engines. The change is effective at the factory with the
truck engine serial numbers LEE24965-Up.
Table 1
C13 High Horsepower - High Mount
Part Number
Description
Quantity
20R-1176
Turbocharger Gp
1
392-6271
Tube As
1
392-6272
Tube As
1
246-6036
Hose
1
Table 2
New Turbochargers and Accessories Are Now Used on Certain High Horsepower C13
Truck Engines
C13 High Horsepower - Mid Mount
SMCS Code: 1052; 1053
Engine:
C13 (S/N: LEE1-Up)
Description Of Change: When ordering the new
high horsepower turbochargers for C13 engines, additional parts need to be ordered to make the proper
repair.
Part Number
Description
Quantity
20R-1176
Turbocharger Gp
1
396-6214
Tube As
1
392-6272
Tube As
1
395-1640
Hose
1
Table 3
C13 High Horsepower - Low Mount
Part Number
Description
Quantity
(continued)
1
(Table 3, contd)
20R-1176
Turbocharger Gp
1
396-6215
Tube As
1
392-6272
Tube As
1
395-1640
Hose
1
Table 4
MCI Bus - High Mount
Part Number
Description
Quantity
20R-1176
Turbocharger Gp
1
396-6216
Tube As
1
419-3611
Oil Filler Tube
1
395-1640
Hose
1
Table 5
Low Cab - Forward Mid Mount
Part Number
Description
Quantity
20R-1176
Turbocharger Gp
1
396-6217
Tube As
1
392-6272
Tube As
1
395-1640
Hose
1
■
2
17 May 2013
Supplements
(Table 1, contd)
C13
LEE
10R-6691
348-7900
Valve
Actuator
with 12 v
brake
C13
LEE
10R-6692
348-7899
Valve
Actuator
with 24 v
brake
C15
BXS
10R-3578
305-0656
Valve
Actuator
C15
MXS, NXS, 20R-0270
SDP
330-1916
Valve
Actuator
C15
MXS, NXS, 20R-0271
SDP
352-1611
Valve
Actuator
with 12 v
brake
C15
MXS, NXS, 20R-0272
SDP
320-6965
Valve
Actuator
with 24 v
brake
The following information has changed since it was
last published:
i05341508
Replacement of the Variable
Valve Actuator Assembly at
Overhaul Is Recommended on
Certain On-Highway Truck
Engines
SMCS Code: 1130
Engine:
C11 (S/N: KCA1-Up)
C13 (S/N: KCB1-Up; LEE1-Up)
C15 (S/N: SDP1-Up; BXS1-Up; MXS1Up; NXS1-Up)
Truck Engine News, SEBD6880, May 2013, “Replacement of the Variable Valve Actuator Assembly at
Overhaul Is Recommended on Certain On-Highway
Truck Engines”. Disregard this article. See the article
that follows. Two part numbers have changed. 10R6991 was changed to 10R-6691 and 10R-6992 was
changed to 10R-6692.
■
The Variable Valve Actuator (VVA) assembly should
be replaced when the engine is being overhauled.
Replacing the VVA assembly eliminates soot buildup
and reduces wear on internal components. The OnHighway truck engines that are using Overhaul Protection for Truck (OPT) are now required to replace
VVA assembly during overhaul.
Refer to the table below to match the correct serial
number prefix to the corresponding part number.
Table 1
Platform
Engine
S/N Prefix
Reman
Part
Number
New Part
Number
Part Name
C11/C13
KCA, KCB
10R-6334
348-7907
Valve
Actuator
C11/C13
KCA, KCB
10R-6335
348-7905
Valve
Actuator
with 12 v
brake
C11/C13
KCA, KCB
10R-6336
348-7904
Valve
Actuator
with 24 v
brake
C13
LEE
10R-6690
348-7907
Valve
Actuator
(continued)
3
SEBD6881
4
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