SEAL-O-RING 4D4508 - Caterpillar

Asphalt Paver:
AP-1000D (S/N: EAD1-UP)
AP-1055D (S/N: FAC1-UP; A6P1-UP)
AP-755 (S/N: B3T1-UP)
BG-2455D (S/N: BNW1-UP; BXW1-UP)
BG-260D (S/N: BPW1-UP)
Cold Planer:
PM-102 (S/N: Z2X1-UP)
Landfill Compactor:
816FSeries 2 (S/N: BZR1-UP)
Soil Compactor:
815FSeries 2 (S/N: BYN1-UP)
Excavator:
324D (S/N: LAB1-UP; EJC1-UP; T2D1-UP; BYE1-UP; JJG1-UP; ECH1-UP; JGK1-UP; SYM1-UP; AWN1-UP; DFP1-UP; JKR1-UP; JLS1-UP; CJX1-UP)
325D (S/N: GPB1-UP; NAC1-UP; KBE1-UP; PKE1-UP; KDG1-UP; C4H1-UP; DBH1-UP; PEH1-UP; C7K1-UP; ERK1-UP; RJK1-UP; C8L1-UP; LAL1-UP; MCL1-UP; PAL1-UP; CJM1-UP; C9M1-UP; DAP1-UP; A3R1-UP; GBR1-UP; SCR1-UP; T2S1-UP)
328D (S/N: BYH1-UP; GTN1-UP; MKR1-UP)
330C (S/N: CYA1-UP; HAA1-UP; MCA1-UP; JAB1-UP; D3C1-UP; JCD1-UP; KDD1-UP; GAG1-UP; RBH1-UP; B1K1-UP; JNK1-UP; B2L1-UP; BTM1-UP; B3M1-UP; MKM1-UP; B4N1-UP; CAP1-UP; GKX1-UP; DKY1-UP; CGZ1-UP)
330D (S/N: RDA1-UP; KAB1-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; PEL1-UP; LEM1-UP; LRM1-UP; ERN1-UP; JLP1-UP; MWP1-UP; LDR1-UP; HAS1-UP; RAS1-UP; MEY1-UP; T2Y1-UP)
M325D (S/N: EDF1-UP; KGG1-UP; KAY1-UP)
UNDERCARRIAGE (S/N: L5J1-UP)
Track Feller Buncher:
511 (S/N: 5111-UP)
521 (S/N: 5211-UP)
522 (S/N: 5221-UP)
532 (S/N: 5321-UP)
541 (S/N: 5411-UP)
551 (S/N: 5511-UP)
552 (S/N: 5521-UP)
TK711 (S/N: 1011-UP)
TK721 (S/N: 1021-UP)
TK722 (S/N: 1031-UP)
TK732 (S/N: 1041-UP)
TK741 (S/N: 2021-UP)
TK751 (S/N: 3011-UP)
TK752 (S/N: 3021-UP)
Integrated Toolcarrier:
IT62H (S/N: M5G1-UP)
Motor Grader:
12H (S/N: CBK1-UP; AMZ1-UP; 1251-UP)
140K (S/N: JPA1-UP)
140M (S/N: B9D1-UP; D9G1-UP; B9M1-UP)
160M (S/N: B9E1-UP; B9L1-UP)
Mobile Hydraulic Power Unit:
324D MHPU (S/N: KJR1-UP)
325D MHPU (S/N: C3N1-UP; H3N1-UP)
330C MHPU (S/N: MSD1-UP; MSL1-UP)
330D MHPU (S/N: D3D1-UP; H3D1-UP; GMN1-UP)
Transmission:
TH31-E61 (S/N: SKY1-UP)
Track-Type Loader:
973C (S/N: BCP1-UP; LDX1-UP)
973D (S/N: LCP1-UP)
Track-Type Tractor:
D6RSeries II (S/N: BNC1-UP; AFD1-UP; CAD1-UP; ADE1-UP; BLE1-UP; BRE1-UP; DAE1-UP; ACJ1-UP; BMJ1-UP; BRJ1-UP; BMK1-UP; BNL1-UP; AEM1-UP; AFM1-UP; AGM1-UP; BPM1-UP; AEP1-UP; BPP1-UP; BPS1-UP; BLT1-UP; FDT1-UP; AAX1-UP; BMY1-UP; BPZ1-UP; BRZ1-UP)
D6RSeries III (S/N: GJB1-UP; WCB1-UP; HDC1-UP; RFC1-UP; TBC1-UP; HCD1-UP; HKE1-UP; WRG1-UP; MTJ1-UP; DMK1-UP; JEK1-UP; EXL1-UP; JDL1-UP; DLM1-UP; LFM1-UP; LGP1-UP; DPS1-UP; GMT1-UP; MRT1-UP; EXW1-UP)
D6T (S/N: JHB1-UP; ZEB1-UP; SMC1-UP; JWD1-UP; LBD1-UP; LAE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; LKJ1-UP; KJL1-UP; SKL1-UP; GCT1-UP; RLW1-UP; LAY1-UP; PEZ1-UP)
Wheel Dozer:
814FSeries 2 (S/N: BXG1-UP)
Wheel Loader:
950H (S/N: N1A1-UP; M1G1-UP; J5J1-UP; K5K1-UP)
962H (S/N: N4A1-UP; M3G1-UP; J6J1-UP; K6K1-UP)
Wheel Skidder:
525C (S/N: 5251-UP)
535C (S/N: 5351-UP)
545C (S/N: 5451-UP)
Wheel Tractor-Scraper:
627G (S/N: DBD1-UP; CEX1-UP)
637G (S/N: CEH1-UP; DFJ1-UP; DEY1-UP)
Description of Change: The Hydraulic Electronic Unit Injector (HEUI) pump that is utilized on C7 and C9 engines has received multiple improvements.Adaptable To: The new HEUI pump is adaptable to the serial numbers that are listed above.The new part numbers are located in the special instruction that is referenced below.ReferenceRefer to Special Instruction, REHS3844 for all of the details that are related to these improvements.ReferenceRefer to Special Instruction, REHS3819 for additional troubleshooting information on the HEUI pump.