2011/12/22 Caterpillar

Excavator:

311D (S/N: CLA1-UP; LKA1-UP; PNJ1-UP; DWR1-UP; AKW1-UP; DDW1-UP)

312D (S/N: SKA1-UP; JBC1-UP; KCD1-UP; PHH1-UP; FBJ1-UP; LRK1-UP; XGK1-UP; RHL1-UP; DLP1-UP; KES1-UP; HCW1-UP; HJX1-UP; TGY1-UP)

313D (S/N: LCE1-UP; LBR1-UP)

314D (S/N: BYJ1-UP; MFK1-UP; TXN1-UP; WLN1-UP; PDP1-UP; SBP1-UP; XHR1-UP; SSZ1-UP)

315D (S/N: JHA1-UP; KBD1-UP; NCM1-UP; BZN1-UP; CJN1-UP; JGS1-UP)

319D (S/N: ZCA1-UP; AYF1-UP; BZH1-UP; FMH1-UP; KTJ1-UP; KFM1-UP; KRM1-UP; RJP1-UP; EAW1-UP; DAY1-UP)

320D (S/N: FNA1-UP; DFB1-UP; M4B1-UP; ZGB1-UP; HJC1-UP; DHE1-UP; MDE1-UP; TAE1-UP; A8F1-UP; BZF1-UP; KAF1-UP; KGF1-UP; KTF1-UP; MGG1-UP; MCH1-UP; TDH1-UP; DHK1-UP; FXK1-UP; XCK1-UP; FAL1-UP; GKL1-UP; RBL1-UP; PCM1-UP; CWN1-UP; KHN1-UP; SPN1-UP; WBN1-UP; WJN1-UP; BWP1-UP; GDP1-UP; AMR1-UP; AZR1-UP; GKS1-UP; PDS1-UP; SNS1-UP; YDS1-UP; DFT1-UP; EBT1-UP; EJT1-UP; SRT1-UP; BWW1-UP; SCW1-UP; EAX1-UP; GMX1-UP; PCX1-UP; PHX1-UP; CXY1-UP; EBY1-UP; BWZ1-UP; CYZ1-UP; JFZ1-UP; JGZ1-UP)

321D (S/N: TXA1-UP; PBD1-UP; MPG1-UP; KBH1-UP; NAS1-UP; MDT1-UP; JCX1-UP; KBZ1-UP)

323D (S/N: RAC1-UP; SDC1-UP; WGC1-UP; CYD1-UP; SED1-UP; YSD1-UP; NDE1-UP; WNE1-UP; GTF1-UP; ZMF1-UP; CWG1-UP; JLG1-UP; LFL1-UP; BYM1-UP; PBM1-UP; NES1-UP; DKW1-UP; L5Z1-UP)

324D (S/N: LAB1-UP; EJC1-UP; MND1-UP; T2D1-UP; BYE1-UP; JJG1-UP; ECH1-UP; TRH1-UP; BTK1-UP; JGK1-UP; SYM1-UP; AWN1-UP; TSN1-UP; DFP1-UP; JKR1-UP; JZR1-UP; JLS1-UP; JAT1-UP; PYT1-UP; CJX1-UP)

325D (S/N: GPB1-UP; NAC1-UP; KBE1-UP; PKE1-UP; KDG1-UP; C4H1-UP; PEH1-UP; C7K1-UP; ERK1-UP; RJK1-UP; C8L1-UP; LAL1-UP; MCL1-UP; PAL1-UP; CJM1-UP; C9M1-UP; AZP1-UP; DAP1-UP; A3R1-UP; GBR1-UP; SCR1-UP; T2S1-UP; CYW1-UP)

328D (S/N: SWF1-UP; BYH1-UP; GTN1-UP; MKR1-UP; RMX1-UP)

329D (S/N: MNB1-UP; XDB1-UP; BFC1-UP; J8D1-UP; BBF1-UP; CZF1-UP; DJF1-UP; L5G1-UP; JHJ1-UP; RSK1-UP; WDK1-UP; EBM1-UP; TPM1-UP; BYS1-UP; WLT1-UP; LFW1-UP; YFW1-UP; SCY1-UP; TAY1-UP; DTZ1-UP)

330D (S/N: RDA1-UP; KAB1-UP; GBC1-UP; PFC1-UP; NBD1-UP; R2D1-UP; GGE1-UP; NEF1-UP; B6H1-UP; EAH1-UP; LCJ1-UP; THJ1-UP; C5K1-UP; E4K1-UP; FFK1-UP; H3K1-UP; L2K1-UP; PCK1-UP; RDK1-UP; PEL1-UP; JJM1-UP; LEM1-UP; LRM1-UP; ERN1-UP; JLP1-UP; MWP1-UP; LDR1-UP; HAS1-UP; RAS1-UP; EDX1-UP; MEY1-UP)

336D (S/N: PTB1-UP; SKE1-UP; JBF1-UP; J2F1-UP; PRF1-UP; LMG1-UP; MYG1-UP; KDJ1-UP; L5K1-UP; WRK1-UP; W3K1-UP; MPL1-UP; ZML1-UP; PPN1-UP; MYP1-UP; M2P1-UP; JER1-UP; JWR1-UP; DTS1-UP; MDS1-UP; NLS1-UP; JBT1-UP; KKT1-UP; M4T1-UP; WET1-UP; PGW1-UP; EMX1-UP; L5X1-UP)

340D (S/N: JTN1-UP)

345D (S/N: DPA1-UP; BYC1-UP; HLC1-UP; RGD1-UP; RAE1-UP; YEE1-UP; NEG1-UP; RGG1-UP; EEH1-UP; KFH1-UP; RAJ1-UP; MLK1-UP; NLM1-UP; JKN1-UP; L5R1-UP; FES1-UP; PBT1-UP; BYW1-UP; LKY1-UP)

349D (S/N: JGB1-UP; WTD1-UP; NNF1-UP; PZG1-UP; RBJ1-UP; MEN1-UP; KHS1-UP)

Mobile Hydraulic Power Unit:

312D MHPU (S/N: DXH1-UP; M3L1-UP)

315D MHPU (S/N: HLG1-UP)

319D MHPU (S/N: KTJ1-UP)

320D MHPU (S/N: MMD1-UP; PRR1-UP; GPX1-UP)

323D MHPU (S/N: DCJ1-UP; GRL1-UP; GRN1-UP; DCY1-UP)

324D MHPU (S/N: M4A1-UP; KJR1-UP)

325D MHPU (S/N: SRC1-UP; C3N1-UP; H3N1-UP; X3N1-UP)

328D MHPU (S/N: JTC1-UP)

329D MHPU (S/N: J9D1-UP; L5H1-UP)

330D MHPU (S/N: D3D1-UP; H3D1-UP; M3D1-UP; GMN1-UP)

336D MHPU (S/N: J6D1-UP; M3M1-UP; M3N1-UP; M3S1-UP; JRX1-UP; NBZ1-UP)

345D MHPU (S/N: P5D1-UP)

349D MHPU (S/N: DKN1-UP)

An improvement has been made to the electronic control module. The new 366-8821 Electronic Control Gp has a much higher surge protection than the former 221-8874 Electronic Control Module. If you experience any system malfunctions, replace the existing electronic control module with the improved design. This improvement plan will be implemented from January 2012.

Illustration 1	g02791694
(1) The ECM part number is stamped here