NHTSA ID Number: 10231096
Manufacturer Communication Number: IS-19910i
TSB/Document Date: 2023-02-04
Summary
ELECTRIC FAN DRIVE COOLING SYSTEM CONVERSION WITH DELCO REMY ALTERNATOR. REVISION : i Note added regarding power cable connection
Instruction Sheet
IS-19910i
ELECTRIC FAN DRIVE COOLING SYSTEM CONVERSION WITH
DELCO REMY ALTERNATOR
H3 coaches (2PCH…) US10 to GHG17 incl. (B-1721 to J-0184)
REVISION : i
THIS DOCUMENT SUPERSEDES PREVIOUS VERSION.
Jan 17-23
Note added regarding power cable connection (step 114)
REVISION : H
THIS DOCUMENT SUPERSEDES PREVIOUS VERSION.
June 17-20
Parts obsolete: 050303, 391028, 562112
Replaced by:
830165
24V RED TELLTALE LIGHT MODULE
381594
BRACKET, TELLTALE
561540
TAB TERMINAL, ST,16-14,1/4 INS
New holes drilled for cooling pack relocation
QTY: 1x
QTY:1x
QTY: 2x
IMPORTANT NOTE
VEHICLES EQUIPPED WITH OPTIONAL PRIME ENERGY MANAGEMENT SYSTEM
TO PREVENT OVERLOADING THE L.H. SIDE ALTERNATOR, IT IS VERY IMPORTANT TO
DISABLE « PRIME » SYSTEM ON VEHICLES RECEIVING THIS CONVERSION. PLEASE
CONTACT YOUR NEAREST PREVOST
SERVICE CENTER TO HAVE THE PRIME
SYSTEM DISABLED. A SOFTWARE TOOL IS NEEDED TO DO SO.
Recommended Alternator Conversion Kits
Take note that you can install a Delco Remy 55SI 24V-250A alternator on the engine curbside using one
of the following recommended installation kit:
Kit:
IS19913
Applicable to: H3 Series, US10
Kit:
IS19908
Applicable to: H3 Series, from D-2364 up to J-0184
Writer:
EL
MATERIAL
Kit IS19910 contains the following parts:
Qty
Part No.
DESCRIPTION
050195
FAN SUPPORT PANEL
A1
1
050200
UPPER SHROUD TRANSITION
A6
1
050201
LEFT SHROUD TRANSITION
A7
1
050202
RIGHT SHROUD TRANSITION
A8
1
050203
LOWER SHROUD TRANSITION
A9
1
050204
UPPER LEFT SHROUD PANEL H3 US10+
A11
1
050229
ELECTRICAL CONNECTOR COVER
A15
1
050206
UPPER RIGHT SHROUD PANEL H3 US10+
A12
1
050213
LOWER SHROUD PANEL H3 US10+
A14
1
050208
LH SIDE SHROUD PANEL H3 US10+
A10
1
050255
RH SIDE SHROUD PANEL & WURTH BOX
SUPPORT H3 US10+
A13
1
012349
IDLER PULLEY
Mechanical
1
Writer:
EL
IS-19910H
Page 3 / 75
012941
PULLEY, DRIVE
Mechanical
1
010090
L.H. ENGINE MOUNT
Mechanical
1
011213
SUPPORT, IDLER + TENSIONER
069893
PULLEY, DELCO REMY ALTERNATOR 10PK 69
DOB
Mechanical
1
453076
CAP, DUST
Mechanical
1
506067
1x BELT 10PK1703 ARAMIDE
1x BELT 10PK1703 ARAMIDE (for your spare kit)
Mechanical
2
510991
TENSIONER, BELT
Mechanical
1
560720
DELCO REMY ALTERNATOR 55SI 24V-250A
Mechanical
1
050286
CAC INLET PIPE H3 US10+
Pipe
1
050406
Pipe
1
050414
RADIATOR INLET COOLANT PIPE H3 US10+
Pipe
1
050288
RADIATOR OUTLET PIPE H3 US10+
Pipe
1
EL
Writer:
Mechanical
1
IS-19910H
Page 4 / 75
Fitting
1
Fitting
1
Fitting
1
Fitting
1
HOSE 3/8 ID X 61'' LONG
hose
1
HOSE, FLEXIBLE - CHARGE AIR
1
Hose
1
1
Hose
1
1
Hose
3
501027
FITTING, SAE 45º #4FL-Mx1/4NPT-M BR
501308
ADAPTER / PIPE FITTING / 1/4NPT-Fx1/4NPT-M BR
501329
ELBOW 45º / PIPE FITTING / 1/4NPT-Mx1/4NPT-F
BR
501332
ELBOW 90º / PIPE FITTING / 1/4NPT-Mx1/4NPT-F
BR
052366
030096
550095
HOSE, FLEXIBLE - CHARGE AIR
Location: turbo outlet
531469
HOSE, FLEXIBLE - CHARGE AIR
Location: CAC outlet
531471
HOSE, FLEXIBLE - CHARGE AIR
Location: CAC inlet
052889
HOSE, SILICONE 2 1/2" ID
Location : coolant pipes
053617
HOSE, SILICONE
Location : coolant pipes
EL
Writer:
IS-19910H
Page 5 / 75
21490616
CLAMPS, SPRING LOAD - CHARGE AIR
Clamps
8
Clamps
4
Clamps
16
Clamps
4
Location: CAC outlet & inlet
21490630
CLAMP, SPRING LOAD - CHARGE AIR
Location: turbo outlet & engine intake
992089
HOSE CLAMP CT CAILLAU 60mm-80mm
Location : coolant pipes
992081
HOSE CLAMP CT CAILLAU 12-22
Location : coolant filter
21185073
MOUNT, ANTI-VIBRATION
Support
/bracket
1
050305
BRACKET, RADIATOR INLET PIPE
Support
/bracket
1
050265
COOLANT FILTER SUPPORT H3
Support
/bracket
1
050214
UPPER RADIATOR SUPPORT H3
Support
/bracket
1
069890
LH LOWER ALTERNATEUR SUPPORT
Support
/bracket
1
069891
LH UPPER ALTERNATEUR SUPPORT
Support
/bracket
1
EL
Writer:
IS-19910H
Page 6 / 75
381594
U-SHAPED BRACKET, ALTERNATOR TELLTALE
Support
/bracket
1
069205
DECAL, WARNING
Misc.
2
010111
DECAL, BELT
Misc.
1
506025
RUBBER EXTRUSION, BLACK
Misc.
8 ft
380360
GROUND STUD
Misc.
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TSB/Document ID: IS-19910i
Replacement Service Bulletin Number:
MFR Communication Date: 2023-01-17
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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