880707A01 GEAR, Reverse Mercury
1200453EY, 1200D73ET, 1200E73EY, 1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225413EY, 1225423EY, 1225424EY, 1225P73ED, 1225P83ED, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1226P73ED, 1250424EY, 1250433EY, 1250434EY, 1250P73ED, 1250P83ED, 1250V23E
GEAR
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Compatible models:
1200453EY
1200D73ET
1200E73EY
1200V13ED
1200V13ER
1200V23ED
1200V23ER
1225413EY
1225423EY
1225424EY
1225P73ED
1225P83ED
1225V13EB
1225V13EF
1225V23ED
1225V33EB
1226P73ED
1250424EY
1250433EY
1250434EY
1250P73ED
1250P83ED
1250V23EF
1250V34EB
1251P73ED
1251V13ED
1275V23ER
1275V24EB
1275V34EB
1300V23EB
1300V24EF
1300V24KD
1300V33EB
1301V23KD
1301V33KD
Mercury
Mercury entire parts catalog list:
1200D73ET 2006,2007,2008
1200E73EY 2006,2007
1200V13ED 2006,2007,2011
1200V13ER 2006,2007,2011
1200V23ED 2006,2007,2011
1200V23ER 2006,2007,2011
1225413EY 2007
1225423EY 2007
1225424EY 2007
1225P73ED 2009
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
1225V13EF 2007
1225V23ED 2007
1225V33EB 2007,2011
1226P73ED 2010
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
1250433EY 2007
1250434EY 2007
1250P73ED 2009
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
1250V34EB 2007
1251P73ED 2010
- GEAR HOUSING, PROPELLER SHAFT » 880707A01
- GEAR HOUSING(PROPELLER SHAFT) » 880707A01
1275V24EB 2007
1275V34EB 2007
1300V23EB 2007
1300V24EF 2007
1300V24KD 2011
1300V33EB 2007
1301V23KD 2011
1301V33KD 2011
Information:
Table 1
J1939 Code and Description CDL Code and Description Comments
7598-5
Aftertreatment #1 DEF Backflow Valve #1 : Current Below Normal 5024-5
Aftertreatment #1 DEF Backflow Valve #1 : Current Below Normal This code indicates that there is a problem with the aftertreatment #1 DEF backflow valve #1 and/or the electrical circuit for the backflow valve.
7598-6
Aftertreatment #1 DEF Backflow Valve #1 : Current Above Normal 5024-6
Aftertreatment #1 DEF Backflow Valve #1 : Current Above Normal This code indicates that there is a problem with the aftertreatment #1 DEF backflow valve #1 and/or the electrical circuit for the backflow valve.
7599-5
Aftertreatment #1 DEF Backflow Valve #2 : Current Below Normal 5025-5
Aftertreatment #1 DEF Backflow Valve #2 : Current Below Normal This code indicates that there is a problem with the aftertreatment #1 DEF backflow valve #2 and/or the electrical circuit for the backflow valve.
7599-6
Aftertreatment #1 DEF Backflow Valve #2 : Current Above Normal 5025-6
Aftertreatment #1 DEF Backflow Valve #2 : Current Above Normal This code indicates that there is a problem with the aftertreatment #1 DEF backflow valve #2 and/or the electrical circuit for the backflow valve.
7600-5
Aftertreatment #2 DEF Backflow Valve #1 : Current Below Normal 5026-5
Aftertreatment #2 DEF Backflow Valve #1 : Current Below Normal This code indicates that there is a problem with the aftertreatment #2 DEF backflow valve #1 and/or the electrical circuit for the backflow valve.
7600-6
Aftertreatment #2 DEF Backflow Valve #1 : Current Above Normal 5026-6
Aftertreatment #2 DEF Backflow Valve #1 : Current Above Normal This code indicates that there is a problem with the aftertreatment #2 DEF backflow valve #1 and/or the electrical circuit for the backflow valve.
7601-5
Aftertreatment #2 DEF Backflow Valve #2 : Current Below Normal 5027-5
Aftertreatment #2 DEF Backflow Valve #2 : Current Below Normal This code indicates that there is a problem with the aftertreatment #2 DEF backflow valve #2 and/or the electrical circuit for the backflow valve.
7601-6
Aftertreatment #2 DEF Backflow Valve #2 : Current Above Normal 5027-6
Aftertreatment #2 DEF Backflow Valve #2 : Current Above Normal This code indicates that there is a problem with the aftertreatment #2 DEF backflow valve #2 and/or the electrical circuit for the backflow valve.
Table 2
Required Tools Qty
372-5260 Test Lead Tool Group 1
Illustration 1 g06100050
The DEF pumps are on the front side of the Pump Electronic Tank Unit (PETU).
(1) Aftertreatment #1 DEF Pump #1
(2) Aftertreatment #1 DEF Pump #2
(3) Aftertreatment #2 DEF Pump #1
(4) Aftertreatment #2 DEF Pump #2
(5) Coolant diverter valve for Aftertreatment #1 DEF Pump #1
(6) Coolant diverter valve for Aftertreatment #1 DEF Pump #2
(7) Coolant diverter valve for Aftertreatment #2 DEF Pump #1
(8) Coolant diverter valve for Aftertreatment #2 DEF Pump #2
(9) Aftertreatment #1 DEF Pump #1 header
(10) Aftertreatment #1 DEF Pump #2 header
(11) Aftertreatment #2 DEF Pump #1 header
(12) Aftertreatment #2 DEF Pump #2 header
(13) Aftertreatment #1 DEF Pump #1 backflow valve
(14) Aftertreatment #1 DEF Pump #2 backflow valve
(15) Aftertreatment #2 DEF Pump #1 backflow valve
(16) Aftertreatment #2 DEF Pump #2 backflow valve
(17) Aftertreatment #1 DEF Pump #1 electrical connection for DEF header
(18) Aftertreatment #1 DEF Pump #2 electrical connection for DEF header
(19) Aftertreatment #2 DEF Pump #1 electrical connection for DEF header
(20) Aftertreatment #2 DEF Pump #2 electrical connection for DEF header
Illustration 2 g06140989
The DEF injectors are on the inlet of the Clean Emissions Module (CEM). There are injectors on both inlets of the dual CEM applications. The CEM above is the typical example for the 793F and 797F Off-Highway Trucks.
(21) DEF injector 2 (Aftertreatment 1 DEF pump 1)
(22) DEF injector 3 (Aftertreatment 1 DEF pump 1)
(23) DEF injector 1 (Aftertreatment 1 DEF pump 2)
(24) DEF injector 4 (Aftertreatment 1 DEF pump 2)
(25) DEF injector 2 (Aftertreatment 2 DEF pump 1)
(26) DEF injector 3 (Aftertreatment 2 DEF pump 1)
(27) DEF injector 1 (Aftertreatment 2 DEF pump 2)
(28) DEF injector 4 (Aftertreatment 2 DEF pump 2)
Illustration 3 g06426651
The DEF injectors are on the inlet of the Clean Emissions Module (CEM). There are injectors on both inlets of the dual CEM applications. The CEM above is the typical example for the 794 AC, 796, and 798 Off-Highway Trucks.
(21) DEF injector 2 (Aftertreatment 1 DEF pump 1)
(22) DEF injector 3 (Aftertreatment 1 DEF pump 1)
(23) DEF injector 1 (Aftertreatment 1 DEF pump 2)
(24) DEF injector 4 (Aftertreatment 1 DEF pump 2)
(25) DEF injector 2 (Aftertreatment 2 DEF pump 1)
(26) DEF injector 3 (Aftertreatment 2 DEF pump 1)
(27) DEF injector 1 (Aftertreatment 2 DEF pump 2)
(28) DEF injector 4 (Aftertreatment 2 DEF pump 2)Reference: Refer to Troubleshooting, System Overview (Aftertreatment Identification) for locating aftertreatment components if necessary.
Table 3
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Determine if a code is active or logged.
Codes
Result: A -5 code is active or logged.
Proceed to Test Step 2.
Result: A -6 code is active or logged.
Proceed to Test Step 3.
2. Check the Backflow Valve Wiring Harness for an Open Circuit
A. Turn the keyswitch to the OFF position. The keyswitch must be OFF for 2 minutes to allow the DEF pump to purge, reset the code, and reset the Diesel Exhaust Fluid Controllers (DCU’s).
B. Disconnect the Pump Electronic Tank Unit (PETU) wiring harness from the affected DEF backflow valve and the affected DCU.
C. Connect the 398-5063 Probe to the DCU connector.
The probe must be used to prevent damage to the DCU connector.
D. Measure the resistance between the following terminals on the affected DEF backflow valve wiring harness connector and the affected 86-pin DCU wiring harness connector:
- For Aftertreatment #1 DCU #1, Terminal 1 (Supply) on the affected DEF backflow valve wiring harness connector and Terminal 11 (DEF Backflow Valve (+)) on the 86-pin DCU connector.
- For Aftertreatment #1 DCU #1, Terminal 2 (Return) on the affected DEF backflow valve wiring harness connector and Terminal 31 (DEF Backflow Valve (-)) on the 86-pin DCU connector.
- For Aftertreatment #1 DCU #2, Termina
Parts gear Mercury:
848881A 1
848881A 1 GEAR, Reverse
1225P73DD, 1225P73ED, 1225P73HD, 1225P83ED, 1226P73ED, 1250413CD, 1250P73ED, 1250P73HD, 1250P83ED, 1251P73ED, 1256413WD, 192647GHD, 192847GHD
880686T29
880686T29 GEAR HOUSING ASSEMBLY, Complete - Standard - Long
1200453EY, 1200D73ET, 1200E73EY, 1225413EY, 1225423EY, 1225424EY, 1225P73ED, 1225P83ED, 1226P73ED, 1250424EY, 1250433EY, 1250434EY, 1250P73ED, 1250P83ED, 1251P73ED
880686T33
880686T33 GEAR HOUSING ASSEMBLY, Complete - Standard - X Long
1200453EY, 1200D73ET, 1200E73EY, 1225413EY, 1225423EY, 1225424EY, 1225P73ED, 1225P83ED, 1226P73ED, 1250424EY, 1250433EY, 1250434EY, 1250P73ED, 1250P83ED, 1251P73ED
880686T54
880686T54 GEAR HOUSING ASSEMBLY, Complete
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1251V13ED, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD
880686T55
880686T55 GEAR HOUSING ASSEMBLY, Complete
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1251V13ED, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD
8M0049871
8M0049871 GEAR HOUSING ASSEMBLY, Complete (CX-Long)(1.75:1)
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD
8M0049873
8M0049873 GEAR HOUSING ASSEMBLY, Complete (CXX-Long)(1.75:1)
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD
8M0053108
8M0053108 GEAR HOUSING ASSEMBLY, Basic, Black
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD