A New Outer Valve Spring Is Now Used {1100, 1108}
- Articulated Truck:
- 735 (S/N: B1N1-UP; AWR1-UP)
- Cold Planer:
- PM-200 (S/N: P1C1-UP)
- Landfill Compactor:
- 826C (S/N: 87X1-UP)
- Soil Compactor:
- 825C (S/N: 86X1-UP)
- Excavator:
- 365C (S/N: ELC1-UP; MEM1-UP; FEN1-UP; PAR1-UP; MCS1-UP; MCY1-UP)
- Load Haul Dump:
- R2900 (S/N: 5TW1-UP)
- Motor Grader:
- 24M (S/N: B9K1-UP)
- Mobile Hydraulic Power Unit:
- 365C MHPU (S/N: GSZ1-UP)
- Off-Highway Truck/Tractor:
- 770 (S/N: BZZ1-UP)
- Quarry Truck:
- 775F (S/N: DLS1-UP)
- Pipelayer:
- 583T (S/N: CMX1-UP)
- Road Reclaimer/Soil Stabilizer:
- RM-500 (S/N: ASW1-UP)
- Track-Type Tractor:
- D10N (S/N: 2YD1-UP; 3SK1-UP)
- Underground Articulated Truck:
- AD30 (S/N: CXR1-UP; DXR1-UP)
- Wheel Dozer:
- 824C (S/N: 85X1-UP)
- Wheel Loader:
- 980GSeries II (S/N: AXG1-UP; AWH1-UP; AYT1-UP)
- Wheel Tractor-Scraper:
- 621B (S/N: 45P1-UP)
- Generator Set:
- 3456 GEN SET (S/N: 9BZ1-UP)
- 740 (S/N: AXM1-UP; B1P1-UP)
- 740 EJECTOR (S/N: B1R1-UP; AZZ1-UP)
- D350ESeries II (S/N: 2XW1-UP)
- D400ESeries II (S/N: APF1-UP; 8PS1-UP)
- PM-201 (S/N: PNM1-UP)
- PM200 (S/N: P1M1-UP)
- 826GSeries II (S/N: AYH1-UP)
- 826H (S/N: AWF1-UP)
- 836G (S/N: BRL1-UP; 7MZ1-UP)
- 836H (S/N: BXD1-UP)
- 825GSeries II (S/N: AXB1-UP)
- 825H (S/N: AZW1-UP)
- 365D (S/N: PAP1-UP)
- 385B (S/N: RCD1-UP; FDL1-UP; ANS1-UP; BKX1-UP; BLY1-UP)
- 385C (S/N: EDA1-UP; MMA1-UP; KGB1-UP; SBE1-UP; T2E1-UP; KKK1-UP; EAM1-UP; JCM1-UP; WAW1-UP; MNZ1-UP)
- 5090B (S/N: CLD1-UP)
- 374D (S/N: PAX1-UP)
- R2900G (S/N: GLK1-UP; JLK1-UP)
- 385C MHPU (S/N: MSF1-UP)
- 772 (S/N: RLB1-UP)
- 773F (S/N: EED1-UP)
- 777F (S/N: JRP1-UP)
- 587T (S/N: FAT1-UP)
- D10R (S/N: 3KR1-UP)
- D10T (S/N: RJG1-UP)
- D11T (S/N: GEB1-UP; TPB1-UP)
- D8RSeries II (S/N: AKA1-UP; 6YZ1-UP)
- D8T (S/N: J8B1-UP; KPZ1-UP)
- D9T (S/N: RJS1-UP)
- AD55 (S/N: ANW1-UP; DNW1-UP)
- AD55B (S/N: JNW1-UP)
- 824GSeries II (S/N: AWW1-UP)
- 824H (S/N: ASX1-UP)
- 834G (S/N: BPC1-UP; 6GZ1-UP)
- 834H (S/N: BTX1-UP)
- 844H (S/N: BTW1-UP)
- 854K (S/N: 2211-UP)
- 980H (S/N: MHG1-UP; A8J1-UP; JMS1-UP)
- 988G (S/N: BNH1-UP; 2TW1-UP)
- 988H (S/N: BXY1-UP)
- 990H (S/N: BWX1-UP)
- 992K (S/N: H4C1-UP)
- 993K (S/N: Z9K1-UP)
- 621E (S/N: 6AB1-UP)
- 621F (S/N: 4SK1-UP)
- 621G (S/N: DBB1-UP; CEN1-UP; ALP1-UP)
- 623B (S/N: 46P1-UP)
- 623E (S/N: 6CB1-UP; 6YF1-UP)
- 623F (S/N: 6BK1-UP; 5EW1-UP)
- 623G (S/N: DBC1-UP; CES1-UP; ARW1-UP)
- 627E (S/N: 6EB1-UP; 6GB1-UP; 7CG1-UP)
- 627F (S/N: 1DL1-UP)
- 627G (S/N: DBD1-UP; AXF1-UP)
- 631G (S/N: DFA1-UP)
- 637D (S/N: 26W1-UP; 27W1-UP; 71W1-UP)
- 637E (S/N: 1FB1-UP)
- 637G (S/N: DFJ1-UP)
- 641B (S/N: 65K1-UP)
- 651B (S/N: 67K1-UP)
- 651E (S/N: 88Z1-UP)
- 657B (S/N: 47M1-UP)
- 657E (S/N: 5YR1-UP; 6PR1-UP; 6TR1-UP; 7KR1-UP; 86Z1-UP; 87Z1-UP; 90Z1-UP; 91Z1-UP)
- 657G (S/N: W1B1-UP; W1C1-UP; W1F1-UP)
Description of Change: A new, improved spring is now used in production to extend the service life of the outer valve spring.
Adaptable To: 247-9908 Spring is a direct replacement for the 211-3123 Spring .
If a former spring is replaced with the new spring, Caterpillar recommends replacing all of the former springs on the cylinder head with the new outer valve spring.
The new spring is adaptable back to the first production of the above listed machines.
Refer to Table 1 for a list of effective serial numbers.
Show/hide table
Effective Serial Numbers     | |||
S/N:22130-UP     | S/N:86Z283-UP     | S/N:BNH1299-UP     | S/N:JLK185-UP     |
S/N:1DL885-UP     | S/N:87X1432-UP     | S/N:BPC76-UP     | S/N:JMS3764-UP     |
S/N:1FB504-UP     | S/N:87Z15-UP     | S/N:BRL269-UP     | S/N:JNW37-UP     |
S/N:26W10-UP     | S/N:88Z141-UP     | S/N:BTW29-UP     | S/N:JRP1502-UP     |
S/N:27W19-UP     | S/N:8PS818-UP     | S/N:BWX191-UP     | S/N:KGB170-UP     |
S/N:2TW473-UP     | S/N:90Z96-UP     | S/N:BXD388-UP     | S/N:KKK86-UP     |
S/N:2XW374-UP     | S/N:91Z258-UP     | S/N:BXY1997-UP     | S/N:KPZ2873-UP     |
S/N:2YD2325-UP     | S/N:9BZ520-UP     | S/N:BZZ393-UP     | S/N:MCS326-UP     |
S/N:3KR1516-UP     | S/N:A8J275-UP     | S/N:CEN211-UP     | S/N:MCY296-UP     |
S/N:3SK730-UP     | S/N:AKA877-UP     | S/N:CES173-UP     | S/N:MEM104-UP     |
S/N:45P55-UP     | S/N:ALP169-UP     | S/N:CLD39-UP     | S/N:MHG1392-UP     |
S/N:46P54-UP     | S/N:ANS120-UP     | S/N:CMX333-UP     | S/N:MMA23-UP     |
S/N:47M104-UP     | S/N:ANW54-UP     | S/N:CXM107-UP     | S/N:MNZ40-UP     |
S/N:4SK1143-UP     | S/N:APF88-UP     | S/N:CXR39-UP     | S/N:MSF11-UP     |
S/N:5EW235-UP     | S/N:ARW157-UP     | S/N:DBB439-UP     | S/N:P1C124-UP     |
S/N:5TW90-UP     | S/N:ASW143-UP     | S/N:DBC354-UP     | S/N:P1M12-UP     |
S/N:5YR267-UP     | S/N:ASX184-UP     | S/N:DBD647-UP     | S/N:PAP2-UP     |
S/N:65K65-UP     | S/N:AWF281-UP     | S/N:DFA240-UP     | S/N:PAR23-UP     |
S/N:67K293-UP     | S/N:AWH2335-UP     | S/N:DFJ168-UP     | S/N:PAX4-UP     |
S/N:6AB946-UP     | S/N:AWR674-UP     | S/N:DLS651-UP     | S/N:PNM40-UP     |
S/N:6BK584-UP     | S/N:AWW306-UP     | S/N:DNW111-UP     | S/N:RCD125-UP     |
S/N:6CB322-UP     | S/N:AXB80-UP     | S/N:DXR138-UP     | S/N:RJG1711-UP     |
S/N:6EB263-UP     | S/N:AXF263-UP     | S/N:EAM27-UP     | S/N:RJS1132-UP     |
S/N:6GB267-UP     | S/N:AXG1504-UP     | S/N:EDA314-UP     | S/N:RLB251-UP     |
S/N:6GZ25-UP     | S/N:AXM1936-UP     | S/N:EED674-UP     | S/N:SBE211-UP     |
S/N:6PR23-UP     | S/N:AYH265-UP     | S/N:ELC334-UP     | S/N:T2E51-UP     |
S/N:6TR66-UP     | S/N:AYT296-UP     | S/N:FAT259-UP     | S/N:TPB13-UP     |
S/N:6YF394-UP     | S/N:AZW154-UP     | S/N:FDL133-UP     | S/N:W1B34-UP     |
S/N:6YZ1718-UP     | S/N:AZZ129-UP     | S/N:FEN32-UP     | S/N:W1C74-UP     |
S/N:71W10-UP     | S/N:B1N1140-UP     | S/N:GEB210-UP     | S/N:WAW14-UP     |
S/N:7CG212-UP     | S/N:B1P4603-UP     | S/N:GLK78-UP     | S/N:Z9K1-UP     |
S/N:7KR143-UP     | S/N:B1R339-UP     | S/N:GSZ31-UP     | S/N:JCM9-UP     |
S/N:7MZ128-UP     | S/N:B9K65-UP     | S/N:H4C52-UP     | S/N:BLY18-UP     |
S/N:85X553-UP     | S/N:BKX61-UP     | S/N:J8B1627-UP     | S/N:86X437-UP     |
Caterpillar Information System:
834H Wheel Dozer and 836H Landfill Compactor Fuel System Primary Filter (Water Separator) - Check/Drain
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C27 Engine for the AD55B Underground Articulated Truck Coolant Flow - Test
120K Motor Grader Equipment Lowering with Engine Stopped
2008/11/03 An Instruction Film is No Longer Used on Certain Asphalt Screeds {1408, 7405}
785D OEM Off-Highway Truck Power Train Final Drive - Assemble
785D OEM Off-Highway Truck Power Train Final Drive - Disassemble
CS54 and CP54 Vibratory Soil Compactors Hydraulic System Oil Filter - Replace
24M Motor Grader Assembly Instruction (Split Shipping Configuration){7000, 7960} 24M Motor Grader Assembly Instruction (Split Shipping Configuration){7000, 7960}
12K, 140K and 160K Motor Graders Circle Drive Oil - Change
C27 Engine for the AD55B Underground Articulated Truck Cooling Fan Speed - Test
120K Motor Grader Hydraulic System Oil Level - Check
2008/12/08 A New Outer Valve Spring is Now Used {1100, 1108}
2008/11/10 The Axles for the Undercarriage Have Been Improved {3282}
2008/12/01 A New Vented Access Door for the Engine Compartment Is Available {7263, 7273}
Installation Procedure for the Space Heater On Generator Sets{4450} Installation Procedure for the Space Heater On Generator Sets{4450}
2009/01/26 An Updated Torque Setting Is Used For Battery Terminals {1402, 1408}
Unreliable Faults Are Found With Body Position Sensors On Off Highway Trucks{1408, 1439} Unreliable Faults Are Found With Body Position Sensors On Off Highway Trucks{1408, 1439}
834H Wheel Dozer and 836H Landfill Compactor Mirror - If Equipped
R1600G Load Haul Dump 3176C Engine Supplement Fan Drive
RM-500 Road Reclaimer/Soil Stabilizer Machine Systems Hydraulic Oil Filter (Rotor Transmission)
120K and 120K Series 2 Motor Graders Power Train Transmission Case
RM-500 Road Reclaimer/Soil Stabilizer Machine Systems Rotor Drive Lubrication Group
C7 Engines for Caterpillar Built Machines Electrical Power Supply - Test