A New Fuel Injection Pump Group is Used on Certain C9.3 Machine Engines {1251} Caterpillar


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A New Fuel Injection Pump Group is Used on Certain C9.3 Machine Engines {1251} [M0067270]
FUEL SYSTEM
PUMP GP-FUEL INJECTION
A New Fuel Injection Pump Group is Used on Certain C9.3 Machine Engines {1251}
Articulated Truck
725C (S/N: LFB1-UP; TFB1-UP)
Excavator
336E (S/N: JEA1-UP; RZA1-UP; KED1-UP; YCE1-UP; TEG1-UP; BMH1-UP; FJH1-UP; GTJ1-UP; JRJ1-UP; SSL1-UP; YEP1-UP; CMR1-UP; HDW1-UP; BZY1-UP; GNY1-UP; TMZ1-UP)
336F (S/N: TZA1-UP; RKB1-UP; RBC1-UP; SSN1-UP; LTP1-UP; NBS1-UP; KFT1-UP; MTW1-UP; DFY1-UP; WTZ1-UP)
336F MHPU (S/N: B341-UP)
340F (S/N: EAR1-UP)
Forest Machine
568 (S/N: BRB1-UP; YJX1-UP)
Mobile Hydraulic Power Unit
336E MHPU (S/N: DSZ1-UP; T3Z1-UP)
Motor Grader
12M Series 2 (S/N: F9B1-UP; F9M1-UP; R9P1-UP; R9S1-UP)
12M Series 3 (S/N: N9B1-UP; N9F1-UP; N9P1-UP; N9R1-UP)
140M Series 2 (S/N: M9D1-UP; R9G1-UP; M9J1-UP; R9M1-UP)
140M Series 3 (S/N: N9D1-UP; N9G1-UP; N9J1-UP; N9M1-UP)
160M Series 2 (S/N: M9E1-UP; M9K1-UP; R9L1-UP; R9T1-UP)
160M Series 3 (S/N: N9E1-UP; N9K1-UP; N9L1-UP; N9T1-UP)
Track-Type Tractor
D6T (S/N: CR31-UP; KSB1-UP; ZJB1-UP; JZC1-UP; DTD1-UP; RAD1-UP; STE1-UP; EJJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; MEL1-UP; TSM1-UP; WRN1-UP; KMR1-UP; PLR1-UP; WES1-UP; SGT1-UP; JRW1-UP; RCW1-UP; TMY1-UP; HTZ1-UP)
D7E (S/N: HKA1-UP; TJA1-UP; MDB1-UP; SCG1-UP; SSH1-UP; TAN1-UP)
Wheel Loader
966K (S/N: PBG1-UP; TFS1-UP)
966K Series XE (S/N: NGX1-UP)
966M (S/N: DYC1-UP; KJP1-UP)
966M Series XE (S/N: P6C1-UP)
972K (S/N: PEM1-UP; Z4W1-UP)
972M (S/N: A8P1-UP; JPR1-UP)
972M Series XE (S/N: EDW1-UP)
Wheel Tractor Scraper
627H (S/N: DBW1-UP)
627K (S/N: WTC1-UP)

Description Of Change: The new fuel injection pump uses an improved coating on the pump plunger.

Adaptable To: The new 493-9679 Fuel Injection Pump Gp replaces the existing 379-0150 Fuel Injection Pump Gp. The new fuel injection pump group is adaptable back to first production on the serial numbers listed above.

Note: The new 493-9679 Fuel Injection Pump Gp requires the use of the latest engine software for the pump to function properly. The latest engine software can be downloaded from SIS.

This change is effective on the engine serial numbers listed in Table 1.

Table 1
Effective Engine Serial Numbers 
S/N:SYE10403-UP 
S/N:MYE12970-UP 
S/N:WYE00164-UP 

Information System:

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