2013/10/31 Caterpillar

Electric Power Generation:

3512B (S/N: ZAH1-UP)

Engine:

3508 (S/N: 95Y1-UP; 96Y1-UP; 23Z1-UP; 69Z1-UP)

3508B (S/N: S2A1-UP; CBB1-UP; CNB1-UP; S2B1-UP; S2D1-UP; ZAD1-UP; S2E1-UP; S2F1-UP; 3DM1-UP; 6PN1-UP; 5PS1-UP; 2HW1-UP; 5KW1-UP; BGX1-UP; BPX1-UP)

3508C (S/N: TTA1-UP; TTB1-UP)

3512 (S/N: PTG1-UP; FDR1-UP; 65Z1-UP; 66Z1-UP)

3512B (S/N: CMC1-UP; FDE1-UP; BLF1-UP; PTF1-UP; 2AF1-UP; PWG1-UP; S2G1-UP; S2H1-UP; S2J1-UP; S2K1-UP; S2L1-UP; PTM1-UP; YAM1-UP; 8RM1-UP; 4TN1-UP; 1PW1-UP; 3ZW1-UP; 4AW1-UP; 6GW1-UP; YAY1-UP)

3512C (S/N: TTC1-UP; TTF1-UP; TTG1-UP; MKH1-UP; SLM1-UP; RMS1-UP; NJT1-UP)

3516B (S/N: BCK1-UP; CAN1-UP; CBN1-UP; FDN1-UP; 7RN1-UP; 9AN1-UP; ZAP1-UP; PBR1-UP; S2R1-UP; ZAR1-UP; GZS1-UP; S2S1-UP; GZT1-UP; YAT1-UP; S2W1-UP; YAW1-UP; 2FW1-UP; 2JW1-UP; 8NW1-UP; FDX1-UP; S2X1-UP; S2Z1-UP)

3516C (S/N: TTD1-UP; PAG1-UP; TTH1-UP; TTJ1-UP)

G3508 (S/N: 9TG1-UP; CPJ1-UP; CPY1-UP)

G3508B (S/N: RBK1-UP)

G3512 (S/N: 7NJ1-UP; CRN1-UP; CSP1-UP; WPP1-UP)

G3512B (S/N: JHH1-UP)

G3516 (S/N: ZBA1-UP; 4EK1-UP; WPT1-UP; WPW1-UP; CSZ1-UP)

G3516B (S/N: ZBB1-UP; CSC1-UP; JEF1-UP)

Petroleum Engine:

3508C (S/N: LLC1-UP; LLE1-UP)

3512C (S/N: LLA1-UP; LLB1-UP; LLF1-UP; R1S1-UP)

3516C (S/N: PES1-UP)

Power Module:

PM3516 (S/N: BPD1-UP)

Engine News SEBD9904, 17 October 2013, "New Auxiliary Water Pump Groups Are Used on Certain 3500 and G3500 Commercial Engines". The original article was revised to update the effective serial numbers.

Description of Change: The new auxiliary water pump groups have improved shafts, housings, and thrust washers. The new auxiliary water pump groups are more resistant to oil and water leaks.

Adaptable To: The new auxiliary water pump groups replace the former auxiliary water pump groups on the engines listed above.

The new auxiliary water pump groups are adaptable to the engines back to first production.

The former auxiliary water pump groups have been canceled.

The new auxiliary water pump groups and the former auxiliary water pump groups are listed in Table 1.

Table 1

New Part Number	Former Part Number
424-3625 Auxiliary Water Pump Gp	291-4311 Auxiliary Water Pump Gp
424-3628 Auxiliary Water Pump Gp	291-4312 Auxiliary Water Pump Gp
424-3629 Auxiliary Water Pump Gp	291-4313 Auxiliary Water Pump Gp

The effective serial numbers are listed in Table 2.

Table 2

Effective Serial Numbers
S/N:23Z83002-UP
S/N:69Z00927-UP
S/N:95Y01465-UP
S/N:2HW00388-UP
S/N:5PS00826-UP
S/N:6PN01170-UP
S/N:BGX00158-UP
S/N:BPX00154-UP
S/N:CBB00591-UP
S/N:S2A00183-UP
S/N:S2B00834-UP
S/N:S2D00275-UP
S/N:S2E00853-UP
S/N:S2F00126-UP
S/N:ZAD92017-UP
S/N:LLC00225-UP
S/N:LLE00716-UP
S/N:TTA00276-UP
S/N:TTB00558-UP
S/N:65Z01616-UP
S/N:66Z00987-UP
S/N:FDR00345-UP
S/N:PTG00408-UP
S/N:2AF00888-UP
S/N:3ZW01184-UP
S/N:4AW01865-UP
S/N:6GW01860-UP
S/N:BLF00204-UP
S/N:CMC01890-UP
S/N:FDE00490-UP
S/N:MKH00283-UP
S/N:PTF92005-UP
S/N:PTM02980-UP
S/N:S2G00408-UP
S/N:S2J00789-UP
S/N:S2K00380-UP
S/N:S2L00984-UP
S/N:YAY92002-UP
S/N:ZAH91004-UP
S/N:LLA03938-UP
S/N:LLB00150-UP
S/N:LLF00508-UP
S/N:NJT00232-UP
S/N:RMS00340-UP
S/N:SLM00520-UP
S/N:TTC00611-UP
S/N:TTF00565-UP
S/N:TTG00330-UP
S/N:2JW00423-UP
S/N:7RN10024-UP
S/N:8NW91002-UP
S/N:BCK00399-UP
S/N:CAN00139-UP
S/N:FDX00611-UP
S/N:GZT00172-UP
S/N:PAG00483-UP
S/N:PBR00688-UP
S/N:S2R00799-UP
S/N:S2S00495-UP
S/N:S2W00150-UP
S/N:S2X01696-UP
S/N:YAW00419-UP
S/N:ZAP01625-UP
S/N:ZAR92008-UP
S/N:S2Z00435-UP
S/N:TTD00415-UP
S/N:TTJ00478-UP
S/N:CPJ00505-UP
S/N:CPY00133-UP
S/N:CRN00464-UP
S/N:WPP01568-UP
S/N:CSP00258-UP
S/N:4EK05302-UP
S/N:WPT01576-UP
S/N:WPW02940-UP
S/N:ZBA01474-UP
S/N:CSC00683-UP
S/N:ZBB00408-UP
S/N:BPD01283-UP
S/N:1PW00456-UP
S/N:2FW00424-UP
S/N:3DM00544-UP
S/N:4TN00868-UP
S/N:5KW02286-UP
S/N:7NJ01366-UP
S/N:8RM01058-UP
S/N:96Y02168-UP
S/N:9AN00412-UP
S/N:9TG00565-UP
S/N:CBN00499-UP
S/N:CNB01768-UP
S/N:CSZ00903-UP
S/N:FDN01784-UP
S/N:GZS00952-UP
S/N:JEF02394-UP
S/N:JHH01025-UP
S/N:PES00875-UP
S/N:PWG00231-UP
S/N:R1S01346-UP
S/N:RBK01318-UP
S/N:S2H00640-UP
S/N:TTH00757-UP
S/N:YAM00988-UP
S/N:YAT00963-UP